{"title":"Hair, Skin \u0026 Nail Supplements","description":"\u003cp\u003eNutriSilk, with biotin and collagen, supports healthy hair, skin and nails.† L-Lysine 500 mg is an essential amino acid that supports collagen formation.†\u003c\/p\u003e","products":[{"product_id":"nutrisilk-hair-skin-nail-support","title":"NutriSilk – Hair, Skin \u0026 Nail Support With Biotin \u0026 Collagen | 60 Capsules","description":"\u003cp\u003e\u003cstrong\u003eNutriSilk is a hair, skin and nail supplement in capsule form. Each 2-capsule serving provides 5,000 mcg of biotin, 15 mg of zinc (citrate), 1 mg of copper, 35 mcg of selenium, four B vitamins including 250 mg of niacinamide, and a 750 mg blend of gelatin, hyaluronic acid and chicken collagen. One 60-capsule bottle is a 30-day supply. NutriSilk supports strong hair and nails and healthy skin.†\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNutriSilk is for people who want their hair, skin and nails to keep pace with the rest of their routine. Collagen gives skin its structure, hyaluronic acid helps it hold water, and hair and nails are made of keratin, a protein your body builds from what you eat. It's an easy habit to start in your 30s and 40s, rather than something to save for later. Below is every amount on the label, what each ingredient does, and an honest read on where the research is strong and where it's thin.\u003c\/p\u003e\n\u003ch2\u003eWhy people take NutriSilk\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTo support strong hair and nails and healthy skin, with 5,000 mcg of biotin in every serving.†\u003c\/li\u003e\n\u003cli\u003eFor zinc and copper, two minerals the body uses to build proteins and connective tissue.†\u003c\/li\u003e\n\u003cli\u003eFor collagen and hyaluronic acid, two things your skin is made of, together in one 750 mg blend.†\u003c\/li\u003e\n\u003cli\u003eFor four B vitamins (riboflavin, niacinamide, B6 and pantothenic acid) that help turn food into energy.†\u003c\/li\u003e\n\u003cli\u003eFor selenium, which your body builds into its own antioxidant enzymes.†\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's in each serving\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eIngredient\u003c\/th\u003e\n\u003cth\u003eAmount per serving\u003c\/th\u003e\n\u003cth\u003e% Daily Value\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRiboflavin\u003c\/td\u003e\n\u003ctd\u003e10 mg\u003c\/td\u003e\n\u003ctd\u003e769%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNiacinamide\u003c\/td\u003e\n\u003ctd\u003e250 mg NE\u003c\/td\u003e\n\u003ctd\u003e1,562%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVitamin B6 (from pyridoxine HCl)\u003c\/td\u003e\n\u003ctd\u003e20 mg\u003c\/td\u003e\n\u003ctd\u003e1,176%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBiotin\u003c\/td\u003e\n\u003ctd\u003e5,000 mcg\u003c\/td\u003e\n\u003ctd\u003e16,666%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePantothenic Acid (from d-calcium pantothenate)\u003c\/td\u003e\n\u003ctd\u003e100 mg\u003c\/td\u003e\n\u003ctd\u003e2,000%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZinc (citrate)\u003c\/td\u003e\n\u003ctd\u003e15 mg\u003c\/td\u003e\n\u003ctd\u003e136%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelenium\u003c\/td\u003e\n\u003ctd\u003e35 mcg\u003c\/td\u003e\n\u003ctd\u003e63%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCopper\u003c\/td\u003e\n\u003ctd\u003e1 mg\u003c\/td\u003e\n\u003ctd\u003e111%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProprietary Blend: Gelatin (kosher), Hyaluronic Acid, and Collagen (from Chicken)\u003c\/td\u003e\n\u003ctd\u003e750 mg\u003c\/td\u003e\n\u003ctd\u003e*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*Daily Value not established. Serving size: 2 capsules. Servings per container: 30 (60 capsules). Other ingredients: Talc, Silica, and Magnesium Stearate (Vegetable Source). The label states: \"NO soy, salt, yeast, gluten, milk \u0026amp; egg products, sugar, starch, or preservatives.\"\u003c\/p\u003e\n\u003ch2\u003eHow NutriSilk works\u003c\/h2\u003e\n\u003ch3\u003eBiotin (5,000 mcg)\u003c\/h3\u003e\n\u003cp\u003eBiotin is vitamin B7. Your body uses it as a helper for enzymes that process fats, carbohydrates and amino acids.† No upper limit has been set for biotin, because the Food and Nutrition Board found no evidence that it's toxic at high intakes (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Biotin-HealthProfessional\/\"\u003eNIH biotin fact sheet\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003eNow the candid part. That same NIH fact sheet says biotin's reputation for hair, skin and nails rests, at best, on a few case reports and small studies, and the nail studies didn't report whether people were low in biotin to begin with. So think of biotin as covering a nutrient your body uses every day, not as a guarantee about your hair.\u003c\/p\u003e\n\u003ch3\u003eCollagen and hyaluronic acid (750 mg blend)\u003c\/h3\u003e\n\u003cp\u003eCollagen is the main structural protein in skin, and gelatin is collagen that has been cooked down. Hyaluronic acid is a sugar-based molecule your skin uses to hold on to water. NutriSilk's blend combines gelatin (kosher), hyaluronic acid and collagen from chicken, 750 mg in all.†\u003c\/p\u003e\n\u003cp\u003eWhat the research shows: a 2023 systematic review pooled 26 randomized trials with 1,721 participants and found that hydrolyzed collagen improved skin hydration and elasticity compared with placebo. The authors also found bias in several of those trials and called for larger studies (\u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/37432180\/\"\u003ePu 2023\u003c\/a\u003e). For hyaluronic acid, a 12-week trial in 150 healthy adults found that 120 mg a day of oral sodium hyaluronate improved skin hydration and elasticity compared with placebo, with smaller effects at 60 mg a day. Six of its seven authors work for a company that makes hyaluronic acid (\u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/41422283\/\"\u003eDolečková 2025\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003eWhat it doesn't show: the label lists the blend as one 750 mg total without breaking out each ingredient, and the collagen trials used hydrolyzed collagen. So we can't tell you NutriSilk matches the doses in those studies. Think of the blend as a supporting cast for the vitamins and minerals.\u003c\/p\u003e\n\u003ch3\u003eZinc (citrate), copper and selenium\u003c\/h3\u003e\n\u003cp\u003eZinc helps hundreds of enzymes do their jobs, including the ones that build proteins and copy DNA when cells divide.† Copper is a helper for enzymes involved in making connective tissue (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Copper-HealthProfessional\/\"\u003eNIH copper fact sheet\u003c\/a\u003e).† NutriSilk uses zinc citrate. In a small randomized crossover study, 15 healthy adults given 10 mg of zinc without food absorbed about 61% of it from zinc citrate, about the same as from zinc gluconate, and about 50% from zinc oxide (\u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24259556\/\"\u003eWegmüller 2014\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003eZinc and copper are linked. Taking 50 mg or more of zinc a day for weeks can interfere with copper absorption (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Zinc-HealthProfessional\/\"\u003eNIH zinc fact sheet\u003c\/a\u003e). NutriSilk pairs 15 mg of zinc with 1 mg of copper, and that zinc sits well under the 40 mg daily upper limit for adults. Selenium (35 mcg, 63% DV) gets built into selenoproteins, including the glutathione peroxidase enzymes that are part of your body's own antioxidant system (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Selenium-HealthProfessional\/\"\u003eNIH selenium fact sheet\u003c\/a\u003e).†\u003c\/p\u003e\n\u003ch3\u003eNiacinamide, riboflavin, vitamin B6 and pantothenic acid\u003c\/h3\u003e\n\u003cp\u003eThese four B vitamins help your cells turn food into usable energy.† Niacinamide is the form of vitamin B3 that doesn't cause the hot, red \"niacin flush\" that nicotinic acid can (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Niacin-HealthProfessional\/\"\u003eNIH niacin fact sheet\u003c\/a\u003e). Vitamin B6, here as pyridoxine HCl, takes part in more than 100 enzyme reactions, most of them involved in processing protein, the raw material for keratin and collagen.† Pantothenic acid comes as d-calcium pantothenate, the most common supplement form, and your cells use it to make coenzyme A, which is central to burning fats and carbohydrates for fuel.†\u003c\/p\u003e\n\u003ch2\u003eHow to take NutriSilk\u003c\/h2\u003e\n\u003cp\u003eThe label directions: \"Take two capsules per day, as a dietary supplement.\" That's one serving, so a 60-capsule bottle lasts 30 days.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe label doesn't say whether to take it with food. Pairing it with the same meal every day is the easiest way to remember it.\u003c\/li\u003e\n\u003cli\u003eThe 10 mg of riboflavin can turn your urine bright yellow. Riboflavin is a yellow vitamin, and your body passes what it doesn't use in urine (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/Riboflavin-HealthProfessional\/\"\u003eNIH riboflavin fact sheet\u003c\/a\u003e).\u003c\/li\u003e\n\u003cli\u003eNutriSilk is not vegetarian. The blend contains gelatin and collagen from chicken.\u003c\/li\u003e\n\u003cli\u003eBiotin can throw off some lab tests. In a small study, six healthy adults taking 10 mg of biotin a day for a week saw interference in 9 of 23 biotin-based tests (\u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28973622\/\"\u003eLi 2017\u003c\/a\u003e). NutriSilk has 5 mg per serving, so tell your practitioner and the lab you take it before any blood work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAsk your healthcare practitioner before use if you are pregnant, nursing, taking medication, or have a medical condition.\u003c\/p\u003e\n\u003ch2\u003eDon't take our word for it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerified by independent labs.\u003c\/strong\u003e ISO 17025-accredited labs check our test results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvery ingredient lot tested before use.\u003c\/strong\u003e Federal rules only require an identity test on incoming dietary ingredients. We test every incoming lot for identity, potency, heavy metals and microbes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf it misses spec, it doesn't go in a bottle.\u003c\/strong\u003e More than 99% of our tests pass, and the lots that don't are turned away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA certificate of analysis for every lot.\u003c\/strong\u003e \u003ca href=\"https:\/\/learn.mtangelvitamins.com\/reviews\/lab-testing\/nutrisilk-hair-skin-nail-support\"\u003eSee the certificates of analysis for this product\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMade in the USA. Made and tested in Mt. Angel, Oregon.\u003c\/strong\u003e It's a farm town of about 3,500 people in the Willamette Valley, and our UL-certified cGMP facility sits right in it. The people who formulate, make and test NutriSilk work under one roof, and the owners work in the building too. The company has been owner-run since 2017. We've been making supplements in Oregon since 1974. That's 52 years, and we're not getting old either.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow long does it take to notice a difference?\u003c\/h3\u003e\n\u003cp\u003eGive it about three months of daily use before you judge. Hair and nails grow slowly, and the hyaluronic acid trial above ran for 12 weeks.\u003c\/p\u003e\n\u003ch3\u003eCan I take NutriSilk with my multivitamin?\u003c\/h3\u003e\n\u003cp\u003eYou can, but check the totals first. If you take a daily multi such as our \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/womens-multi-cap-60ct\"\u003eWomen's Multi with KSM-66 ashwagandha\u003c\/a\u003e or \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/mens-multi-vitamin-60-capsules\"\u003eMen's Multi daily multivitamin\u003c\/a\u003e, add up the zinc, niacin and vitamin B6 across both labels, and ask your practitioner if the combined amounts are right for you.\u003c\/p\u003e\n\u003ch3\u003eWhy are some of the Daily Values so high?\u003c\/h3\u003e\n\u003cp\u003eBecause some Daily Values are tiny. Biotin's DV is 30 mcg, so 5,000 mcg reads as 16,666%, and no upper limit has been set for biotin. The 20 mg of vitamin B6 is well under the 100 mg adult upper limit the NIH lists (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/VitaminB6-HealthProfessional\/\"\u003eNIH vitamin B6 fact sheet\u003c\/a\u003e). The 250 mg of niacinamide is above the 35 mg upper limit the NIH lists for supplemental niacin. That limit was set based on the flushing nicotinic acid causes and applies to both forms, though niacinamide itself doesn't cause flushing. If you take other niacin products, or have questions about your total, ask your practitioner.\u003c\/p\u003e\n\u003ch3\u003eDo I need to stop NutriSilk before blood work?\u003c\/h3\u003e\n\u003cp\u003eAsk your practitioner, and tell the lab you take biotin. Biotin can interfere with some common lab tests, so your practitioner may want you to pause it first.\u003c\/p\u003e\n\u003ch3\u003eShould I take vitamin C with NutriSilk?\u003c\/h3\u003e\n\u003cp\u003eIt's a sensible pairing. Your body needs vitamin C to make collagen (\u003ca href=\"https:\/\/ods.od.nih.gov\/factsheets\/VitaminC-Consumer\/\"\u003eNIH vitamin C fact sheet\u003c\/a\u003e), and NutriSilk contains none, so a vitamin C supplement such as \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/good-c-buffered-vitamin-c\"\u003eGood C buffered vitamin C\u003c\/a\u003e covers that side.†\u003c\/p\u003e\n\u003ch3\u003eIs NutriSilk safe with my medication?\u003c\/h3\u003e\n\u003cp\u003eAsk your healthcare practitioner first, and bring the bottle so they can see every ingredient and amount.\u003c\/p\u003e\n\u003ch2\u003eKeep learning\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.mtangelvitamins.com\/reviews\/lab-testing\/nutrisilk-hair-skin-nail-support\"\u003eNutriSilk certificates of analysis, lot by lot\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.mtangelvitamins.com\/reviews\/lab-testing\"\u003eCertificates of analysis for other Mt. Angel Vitamins products\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003ePu SY et al. Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis. Nutrients. 2023. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/37432180\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDolečková I et al. Oral sodium hyaluronate improves skin hydration, barrier function and signs of aging: a randomized, double-blind, placebo-controlled trial in 150 healthy adults. Sci Rep. 2025. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/41422283\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eWegmüller R et al. Zinc absorption by young adults from supplemental zinc citrate is comparable with that from zinc gluconate and higher than from zinc oxide. J Nutr. 2014. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24259556\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eLi D et al. Association of Biotin Ingestion With Performance of Hormone and Nonhormone Assays in Healthy Adults. JAMA. 2017. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28973622\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003e†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.\u003c\/em\u003e\u003c\/p\u003e","brand":"Mt. Angel Vitamins","offers":[{"title":"60","offer_id":44364424184090,"sku":"015-M1007","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1300\/7869\/files\/M1007REV05_ListingImage1.png?v=1770229271"},{"product_id":"l-lysine-500mg-immune-collagen","title":"L-Lysine HCl 500 mg – Essential Amino Acid for Collagen Support | 60 Capsules","description":"\u003cp\u003e\u003cstrong\u003eMt. Angel Vitamins L-Lysine is a single-ingredient amino acid supplement. Each capsule has 500 mg of L-lysine HCl, which yields 400 mg of L-lysine, and each bottle holds 60 capsules. Lysine is an essential amino acid: your body can't make it, but it needs lysine to build proteins, collagen included.† The front label adds that it's for optimal calcium absorption.†\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLysine isn't glamorous. It's one of the nine essential amino acids, the ones your body can't make, so it has to come from food: meat, fish, eggs, dairy, beans and lentils are the big sources. If you're in your 30s or 40s and already thinking about how your skin, tendons and bones will hold up at 75, the raw materials matter. Aging isn't optional. Getting old is.\u003c\/p\u003e\n\u003cp\u003eThis capsule is for people who want a simple way to top up lysine: people who eat less protein than they mean to, and anyone who wants lysine alongside their calcium, which is what the label points to. One ingredient, one number to remember (400 mg of lysine per capsule), and no blend to decode. The capsule shell is gelatin, so it isn't a fit for vegetarians.\u003c\/p\u003e\n\u003ch2\u003eWhy people take L-Lysine\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt's essential.\u003c\/strong\u003e Supplies lysine, an amino acid your body can't make on its own, for normal protein building.†\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA collagen building block.\u003c\/strong\u003e Supports normal collagen formation in skin, tendons and bone.†\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalcium absorption.\u003c\/strong\u003e The front label reads \"For optimal calcium absorption,\" so it pairs naturally with a calcium supplement.†\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEveryday protein needs.\u003c\/strong\u003e Supplies an amino acid your body uses to make proteins, including the enzymes and antibodies behind normal immune function.†\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's in each serving\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIngredient\u003c\/th\u003e\n\u003cth\u003eAmount per serving\u003c\/th\u003e\n\u003cth\u003e% Daily Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eL-Lysine HCl (yielding 400 mg L-lysine)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e* Daily Value Not Established\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eServing size is 1 capsule. At that serving, the 60-capsule bottle holds 60 servings. Other ingredients, as printed: Gelatin (100% natural, preservative-free, from capsule shell), magnesium trisilicate, silica, and magnesium stearate. The last three help the powder flow so each capsule fills evenly. The label also states: \"NO corn, soy, salt, yeast, gluten, milk \u0026amp; egg products, sugar, starch, or preservatives.\" The front of the bottle reads \"Single ingredient\" and \"For optimal calcium absorption.\"†\u003c\/p\u003e\n\u003ch2\u003eHow L-Lysine works\u003c\/h2\u003e\n\u003ch3\u003eWhat lysine is, and what \"HCl\" means\u003c\/h3\u003e\n\u003cp\u003eProteins are chains of amino acids, and lysine is one of the nine your body can't make. The \"L\" is the form your body builds proteins with. \"HCl\" means the lysine is paired with hydrochloric acid as a hydrochloride salt, a stable form that works well as a dry powder in a capsule. That pairing adds weight, which is why the label shows two numbers: 500 mg of L-lysine HCl, yielding 400 mg of L-lysine. The 400 mg is the lysine you're actually getting. We'd rather you know that than guess.\u003c\/p\u003e\n\u003ch3\u003eLysine and collagen\u003c\/h3\u003e\n\u003cp\u003eCollagen is the main structural protein in skin, tendons, ligaments and bone, and lysine has a special job in it. Inside the cell, specific lysines in each collagen chain are converted to hydroxylysine. Outside the cell, lysine and hydroxylysine at the ends of the molecules are turned into reactive groups that form cross-links, chemical bonds that tie neighboring collagen molecules together. A \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/22708567\/\"\u003ereview of how lysine modifications build collagen cross-links\u003c\/a\u003e describes these steps as critical to collagen's structure and function.\u003c\/p\u003e\n\u003cp\u003eVitamin C is the other half of the story. Skin holds high levels of it, and it stimulates collagen synthesis, according to a \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28805671\/\"\u003ereview of vitamin C's roles in skin\u003c\/a\u003e. That's why lysine and \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/good-c-buffered-vitamin-c\"\u003eGood C, our buffered vitamin C with citrus bioflavonoids\u003c\/a\u003e, make a sensible pair.\u003c\/p\u003e\n\u003cp\u003eWhat the research doesn't show: we haven't found trials in healthy adults showing that extra lysine, on top of a diet with enough protein, makes skin firmer or collagen stronger. Lysine is a building block, and building blocks matter most when you're short on them.\u003c\/p\u003e\n\u003ch3\u003eLysine and calcium\u003c\/h3\u003e\n\u003cp\u003eThe front label says \"For optimal calcium absorption.\"† Human research on lysine and calcium is small and decades old, so think of it as a supporting role rather than the main event. If calcium is the reason you're here, \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/calcium-citrate-60ct\"\u003eCalcium Citrate 250 mg\u003c\/a\u003e is our single-ingredient calcium capsule, and its label uses the same \"one or more capsules daily\" wording.\u003c\/p\u003e\n\u003ch3\u003eHow much lysine you need\u003c\/h3\u003e\n\u003cp\u003eResearchers measure amino acid needs with tracer studies. In a \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12163671\/\"\u003etracer study of the lysine requirement in five healthy men\u003c\/a\u003e, the average need came out at 36.6 mg per kilogram of body weight a day. A \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/15308475\/\"\u003esimilar study in five healthy women\u003c\/a\u003e found 35.0 mg\/kg in the first half of the menstrual cycle and 37.7 mg\/kg in the second half. For a 154-pound (70 kg) adult, that works out to roughly 2.5 to 2.6 grams of lysine a day, so one capsule's 400 mg covers about 15 to 16% of it. Both studies were tiny, as these studies usually are, but their numbers line up.\u003c\/p\u003e\n\u003cp\u003eHere's the candid part: if you eat enough protein, food likely covers most or all of that. A \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31690027\/\"\u003e2019 review of protein and amino acids in vegetarian diets\u003c\/a\u003e concluded that protein-rich plant foods such as legumes, nuts and seeds cover adult protein needs, and that worries about shortfalls of individual amino acids have been overstated. A lysine capsule is a top-up for days and diets that fall short, not a substitute for eating well.\u003c\/p\u003e\n\u003ch3\u003eWhat the safety research says\u003c\/h3\u003e\n\u003cp\u003eLysine has a long track record in human studies. A \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/30661148\/\"\u003e2019 systematic review of oral L-lysine safety\u003c\/a\u003e pulled together 71 human studies using 16.8 mg to 17,500 mg a day for 1 to 1,095 days. The side effects reported were mostly stomach-related (nausea, stomachache, diarrhea), and the authors set a provisional no-observed-adverse-effect level of 6,000 mg a day. One capsule has 400 mg of lysine.\u003c\/p\u003e\n\u003ch2\u003eHow to take L-Lysine\u003c\/h2\u003e\n\u003cp\u003eThe label's directions, word for word: \"One or more capsules daily, in between meals, preferably with fruit juice. More effective when taken with carbohydrates, not protein.\"\u003c\/p\u003e\n\u003cp\u003eIn practice, that means mid-morning or mid-afternoon with a glass of juice or a carbohydrate snack, rather than with a steak dinner or a protein shake.\u003c\/p\u003e\n\u003cp\u003eAsk your healthcare practitioner before use if you are pregnant, nursing, taking medication, or have a medical condition.\u003c\/p\u003e\n\u003ch2\u003eDon't take our word for it\u003c\/h2\u003e\n\u003cp\u003eA single-ingredient product leaves nowhere to hide, which suits us fine. We've been making supplements in Oregon since 1974.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerified by independent labs.\u003c\/strong\u003e ISO 17025-accredited labs check our test results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvery ingredient lot tested before use.\u003c\/strong\u003e Federal rules only require an identity test on incoming dietary ingredients. We test every incoming lot, the L-lysine HCl included, for identity, potency, heavy metals and microbes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf it misses spec, it doesn't go in a bottle.\u003c\/strong\u003e More than 99% of our tests pass, and the lots that don't are turned away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA certificate of analysis for every lot.\u003c\/strong\u003e Every lot of L-Lysine gets its own CoA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMade in the USA. Made and tested in Mt. Angel, Oregon.\u003c\/strong\u003e It's a farm town of about 3,500 in the Willamette Valley, and it's home to our UL-certified cGMP facility. Formulators, makers and testers work under one roof, and the owners work in the building too. We've been owner-run since 2017, and we're not getting old either.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow much lysine is in one capsule?\u003c\/h3\u003e\n\u003cp\u003eEach capsule has 500 mg of L-lysine HCl, which yields 400 mg of L-lysine. One capsule is one serving and the bottle holds 60, so at one capsule a day a bottle lasts 60 days.\u003c\/p\u003e\n\u003ch3\u003eWhen should I take L-Lysine?\u003c\/h3\u003e\n\u003cp\u003eBetween meals, preferably with fruit juice. The label says it's more effective when taken with carbohydrates, not protein, so don't take it with a protein shake or a big protein-heavy meal.\u003c\/p\u003e\n\u003ch3\u003eCan I take more than one capsule a day?\u003c\/h3\u003e\n\u003cp\u003eYes, the label says one or more capsules daily. A 2019 safety review set a provisional no-observed-adverse-effect level of 6,000 mg of lysine a day, far above one capsule, but check with your healthcare practitioner before taking several capsules a day.\u003c\/p\u003e\n\u003ch3\u003eIs L-Lysine vegetarian?\u003c\/h3\u003e\n\u003cp\u003eNo. The capsule shell is gelatin, which comes from animals, and the label doesn't say which animal. If you avoid gelatin, this one isn't for you.\u003c\/p\u003e\n\u003ch3\u003eCan I take it with Good C or a multivitamin?\u003c\/h3\u003e\n\u003cp\u003eYes. Vitamin C and lysine both play a part in collagen, and lysine fits next to our \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/mens-multi-vitamin-60-capsules\"\u003eMen's Multi\u003c\/a\u003e or \u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/womens-multi-cap-60ct\"\u003eWomen's Multi\u003c\/a\u003e too. Keep the lysine between meals as its label suggests, and if you take medication, run the whole routine past your healthcare practitioner.\u003c\/p\u003e\n\u003ch3\u003eHow long before I notice a difference?\u003c\/h3\u003e\n\u003cp\u003eHonestly, you probably won't feel it kick in. Lysine is a building block, not a stimulant, and we don't know of research on how quickly people notice anything. Think of it like the protein at breakfast: part of the routine, not a sensation.\u003c\/p\u003e\n\u003ch3\u003eIs it safe with my medication?\u003c\/h3\u003e\n\u003cp\u003eAsk your healthcare practitioner, especially if you're pregnant, nursing, taking medication, or have a medical condition. They know your full picture.\u003c\/p\u003e\n\u003ch2\u003eKeep learning\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/good-c-buffered-vitamin-c\"\u003eGood C, buffered vitamin C 500 mg with citrus bioflavonoids\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/calcium-citrate-60ct\"\u003eCalcium Citrate 250 mg, a single-ingredient calcium capsule\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.mtangelvitamins.com\/products\/nutrisilk-hair-skin-nail-support\"\u003eNutriSilk, with biotin, collagen and hyaluronic acid\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.mtangelvitamins.com\/blog\/new\/our-approach-to-raw-material-sourcing-and-testing\"\u003eHow we source and test every raw material\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReferences\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eYamauchi M, Sricholpech M. Lysine post-translational modifications of collagen. Essays Biochem. 2012. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/22708567\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePullar JM et al. The Roles of Vitamin C in Skin Health. Nutrients. 2017. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28805671\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eKriengsinyos W et al. Oral and intravenous tracer protocols of the indicator amino acid oxidation method provide the same estimate of the lysine requirement in healthy men. J Nutr. 2002. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12163671\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eKriengsinyos W et al. Phase of menstrual cycle affects lysine requirement in healthy women. Am J Physiol Endocrinol Metab. 2004. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/15308475\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eMariotti F, Gardner CD. Dietary Protein and Amino Acids in Vegetarian Diets-A Review. Nutrients. 2019. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31690027\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eHayamizu K et al. Safety assessment of L-lysine oral intake: a systematic review. Amino Acids. 2019. \u003ca href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/30661148\/\"\u003ePubMed\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003e†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.\u003c\/em\u003e\u003c\/p\u003e","brand":"Mt. Angel Vitamins","offers":[{"title":"Default Title","offer_id":50371017441562,"sku":"015-M0974","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1300\/7869\/files\/M0974_REV00_NewItemBadge.png?v=1741363280"}],"url":"https:\/\/www.mtangelvitamins.com\/collections\/hair-skin-nails-supplements.oembed","provider":"Mt. Angel Vitamins","version":"1.0","type":"link"}