Hair Self-Care Ingredients & Drug Interactions
by Viviscal
What is this page for?
First and foremost: checking Hair Self-Care against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Hair Self-Care is a dietary supplement by Viviscal with 6 active ingredients. Its ingredients are commonly taken for acetaminophen (tylenol) overdose support, liver health, urinary tract acidification.Based on those ingredients, 87 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Cysteine, L-Lysine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Hair Self-Care by Viviscal
Ask about any prescription or over-the-counter medication and we check it for interactions with Hair Self-Care by Viviscal — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Hair Self-Care by Viviscal
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
Viviscal Hair Self-Care contains 6 active ingredients: L-methionine, L-lysine, L-cysteine, methylsulfonylmethane, hydrolyzed keratin, and hydrolyzed fish collagen. These are amino acids and protein-derived compounds intended to support hair structure and growth.
The capsule also contains inactive ingredients — hydroxypropyl methylcellulose, microcrystalline cellulose, magnesium stearate, and silicon dioxide — which are standard fillers and binders.
Does it work?
Not established
The evidence for these ingredients is limited. L-lysine is possibly effective for cold sores, but the other active ingredients lack established evidence in the data we hold.
L-methionine, L-cysteine, and the protein derivatives (keratin and collagen) have insufficient reliable evidence to rate them for hair health or growth. None of these ingredients have a strong evidence base for the stated purpose of hair self-care.
How safe is it?
Well-documented data
L-methionine and L-cysteine are rated likely safe in pregnancy; L-lysine's pregnancy safety isn't established in our data, so talk with your doctor or pharmacist if you're pregnant or planning to be. For breastfeeding, L-methionine is likely safe, but L-lysine and L-cysteine don't have enough data on file.
Common side effects from L-lysine include stomach pain, diarrhea, and indigestion at higher doses. L-methionine can cause dizziness, drowsiness, headache, and irritability, especially at high doses.
L-cysteine's adverse effects aren't documented in our data. All three are generally well tolerated at typical doses, but long-term safety of supplement amounts hasn't been fully studied.
Meds to double-check
Moderate interaction found
Check your medications before starting, especially if you take antidiabetes drugs — L-cysteine may increase the risk of low blood sugar. Also flag any GI motility medications (5-HT4 agonists) with your pharmacist, as L-lysine may reduce their effect.
We have no interaction data for three of the six active ingredients.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
Viviscal Hair Self-Care is a multi-ingredient supplement aimed at hair health, but its active ingredients lack solid evidence for that purpose. If you take antidiabetes drugs or GI motility medications, check your specific drugs with the tool on this page before starting.
Talk to your pharmacist or doctor about whether this product fits your needs and is safe alongside your current medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2024.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Hair Self-Care, straight from the product label.
| Brand | Viviscal |
|---|---|
| Barcode (UPC) | 022600997542 |
| Net contents | 30 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2024 |
| DSLD ID | 317562 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Hair Self-Care by Viviscal, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Total Carbohydrates | 1 Gram(s) | 1% |
| L-Methionine | 15 mg | -- |
| L-Lysine | 15 mg | -- |
| L-Cysteine | 15 mg | -- |
| Methylsulfonylmethane | 200 mg | -- |
| Keratin, Hydrolyzed | 50 mg | -- |
| Fish Collagen, Hydrolyzed | 200 mg | -- |
Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation
Advanced hair health
Soy free Dairy free Shellfish free Gluten free
Made in the USA with U.S. and imported ingredients Building blocks of healthy hair Gorgeous hair from the inside out Developed to support healthy hair, this nutritionist formulated supplement fortifies hair's natural beauty from the inside out and helps to deliver nutritional building blocks essential for gorgeous, healthy hair.
Formula
Nutrients to support healthy hair Collagen Keratin Amino acid blend
Made with Collagen Contains amino acids which support keratin formation Keratin A key protein found in healthy hair Amino acids (L-Lysine, L-Cysteine, L-Methionine) Help fortify hair's natural beauty
General Statements
#1 selling brand Nutritionist designed formula
Questions, Comments? M-F 9am-5pm ET Call 1-866-951-1748
Empty & replace cap Plastic bottle Bottle not recyclable unless label removed Plastic label how2recycle.info
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Suggested use: Adults take 1 capsule per day.
Precautions
If you are pregnant, nursing, are on medications or have a medical condition, consult your physician before use.
Do not exceed suggested dosage. Do not use if seal is broken or missing.
Keep out of the reach of children.
Contains: Fish (Wild Alaskan Pollock)
Storage
Storage information: Store in a cool, dry place.
FDA Disclaimer Statement
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.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Hair Self-Care by Viviscal label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Hair Self-Care by Viviscal
These are the 6 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
L-Methionine
No knowninteractions
Methionine is an essential amino acid that your body needs for protein building and many basic chemical reactions. Most people get enough from a norma...
L-Methionine monograph & interactionsL-Lysine
Interacts with1 drug
Lysine is an essential amino acid your body cannot make on its own, so it must come from food or supplements. People most often take extra lysine to t...
L-Lysine monograph & interactionsL-Cysteine
Interacts with86 drugs
L-cysteine is a sulfur-containing amino acid your body uses to make proteins and the antioxidant glutathione. Most people get enough from food, and su...
L-Cysteine monograph & interactionsMethylsulfonylmethane
Keratin, Hydrolyzed
Fish Collagen, Hydrolyzed
Other (inactive) ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
Hair Self-Care by Viviscal Drug Interactions
HelloPharmacist Interaction Report
Viviscal Hair Self-Care does have documented interactions with certain medications.
The most serious is L-cysteine, which may increase the risk of low blood sugar (hypoglycemia) if you're taking antidiabetes drugs — this is a Moderate-severity interaction. L-lysine carries a Minor interaction with 5-HT4 agonists (a type of drug used for GI motility), which it may reduce in effect.
Read the full breakdown — every affected drug type, severity by severity
L-methionine, the third active ingredient we could check, has no interactions documented in our data. However, we could not check three other ingredients in this formula: methylsulfonylmethane, hydrolyzed keratin, and hydrolyzed fish collagen — we don't hold monograph data for them.
Altogether, these interactions span 86 individual medications. Before you start this product, run your exact medications through the checker on this page, especially if you take diabetes drugs or GI medications.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Hair Self-Care?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Hair Self-Care interact with 87 drugs. Click any drug to see the details.
2 of the 6 ingredients in Hair Self-Care interact with drugs. Each result below shows which ingredient is responsible. L-Cysteine L-Lysine
AcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Acarbose interactionAcetohexamideDymelor
How Acetohexamide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Acetohexamide interactionAlbiglutideTanzeum
How Albiglutide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Albiglutide interactionAlogliptinNesina
How Alogliptin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Alogliptin, Pioglitazone interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionCanagliflozinInvokana
How Canagliflozin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Canagliflozin interactionCanagliflozin, MetforminInvokamet
How Canagliflozin, Metformin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Canagliflozin, Metformin interactionCanagliflozin, Metformin HydrochlorideInvokamet XR
How Canagliflozin, Metformin Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Canagliflozin, Metformin Hydrochloride interactionChlorpropamideChlorpropam, Diabinese
How Chlorpropamide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Chlorpropamide interactionDapagliflozinFarxiga
How Dapagliflozin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Dapagliflozin interactionDapagliflozin Propanediol, MetforminXigduo XR
How Dapagliflozin Propanediol, Metformin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Dapagliflozin Propanediol, Metformin interactionDapagliflozin Propanediol, Saxagliptin HydrochlorideQtern
How Dapagliflozin Propanediol, Saxagliptin Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Dapagliflozin Propanediol, Saxagliptin Hydrochloride interactionDapagliflozin, Metformin Hydrochloride, Saxagliptin HydrochlorideQternmet XR
How Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Dapagliflozin, Metformin Hydrochloride, Saxagliptin Hydrochloride interactionDasiglucagon HydrochlorideZegalogue
How Dasiglucagon Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Dasiglucagon Hydrochloride interactionDulaglutideTrulicity
How Dulaglutide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Dulaglutide interactionEmpagliflozinJardiance
How Empagliflozin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Empagliflozin interactionEmpagliflozin, Linagliptin, Metformin HydrochlorideTrijardy XR
How Empagliflozin, Linagliptin, Metformin Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Empagliflozin, Linagliptin, Metformin Hydrochloride interactionEmpagliflozin, MetforminSynjardy
How Empagliflozin, Metformin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Empagliflozin, Metformin interactionEmpagliflozin, Metformin HydrochlorideSynjardy XR
How Empagliflozin, Metformin Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Empagliflozin, Metformin Hydrochloride interactionErtugliflozinSteglatro
How Ertugliflozin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Ertugliflozin interactionErtugliflozin, Metformin HydrochlorideSegluromet
How Ertugliflozin, Metformin Hydrochloride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Ertugliflozin, Metformin Hydrochloride interactionExenatideBydureon, Byetta
How Exenatide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Exenatide interactionExenatide SyntheticBydureon BCISE
How Exenatide Synthetic interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Exenatide Synthetic interactionGliclazideDiamicron
How Gliclazide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Gliclazide interactionGlimepirideAmaryl
How Glimepiride interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Glimepiride interactionGlipizideGlucotrol, Glucotrol XL
How Glipizide interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Glipizide interactionGlipizide, MetforminMetaglip
How Glipizide, Metformin interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Glipizide, Metformin interactionGlucagonBaqsimi, Glucagon
How Glucagon interacts with Hair Self-Care — through 1 ingredient. Tap an ingredient for the detail:
L-cysteineAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full L-cysteine + Glucagon interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Hair Self-Care with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
L-Cysteine
Antidiabetes Drugs
Theoretically, taking L-cysteine supplements with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research suggests that L-cysteine can have hypoglycemic effects.
L-Lysine
5-Ht4 Agonists
Theoretically, lysine may reduce the effects of 5-HT4 agonists.
Animal research suggests that L-lysine is a partial serotonin receptor 4 (5-HT4) antagonist and inhibits diarrhea induced by the 5-HT4 agonist, 5-hydroxytryptophane.
Brand information
Manufacturer and brand details for Hair Self-Care, from the product label.
Viviscal
See all Viviscal products- Name
- Church & Dwight Co., Inc.
- City
- Ewing
- State
- NJ
- ZipCode
- 08628
- Phone Number
- 1-866-951-1748
- Web Address
- www.viviscal.com
Hair Self-Care by Viviscal: Common Questions
Does Hair Self-Care by Viviscal interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is this safe to take if I'm pregnant?
Can I take this if I'm breastfeeding?
Does L-lysine in this product really help with cold sores?
What side effects might I experience?
I take diabetes medication. Is this safe for me?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Hair Self-Care is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Hair Self-Care’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Methionine
Methionine is an essential amino acid that your body needs for protein building and many basic chemical reactions. Most people get enough from a normal diet, and supplements are generally no...
Read the full Methionine monograph → Herb & supplement monographLysine
Interacts with 1 drugLysine is an essential amino acid your body cannot make on its own, so it must come from food or supplements. People most often take extra lysine to try to prevent or shorten cold sores, but...
Read the full Lysine monograph → Herb & supplement monographL-cysteine
Interacts with 86 drugsL-cysteine is a sulfur-containing amino acid your body uses to make proteins and the antioxidant glutathione. Most people get enough from food, and supplements are usually well tolerated, bu...
Read the full L-cysteine monograph →Sources & How We Checked
Hair Self-Care's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 21 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Methionine 12 references
- La Vecchia C, Negri E, Franceschi S, Decarli A. Case-control study on influence of methionine, nitrite, and salt on gastric carcinogenesis in northern Italy. Nutr Cancer 1997;27:65-8. PubMed
- Btaiche IF, Khalidi N. Parenteral nutrition-associated liver complications in children. Pharmacotherapy 2002;22:188-211.. PubMed
- Cottington EM, LaMantia C, Stabler SP, et al. Adverse event associated with methionine loading test: a case report. Arterioscler Thromb Vasc Biol 2002;22:1046-50.. PubMed
- Anon. Should methionine be added to paracetamol formulations? Drug Ther Perspect 1997;10:11-3. DOI
- Smulders, Y. M., Rakic, M., Slaats, E. H., Treskes, M., Sijbrands, E. J., Odekerken, D. A., Stehouwer, C. D., and Silberbusch, J. Fasting and post-methionine homocysteine levels in NIDDM. Determinants and correlations with retinopathy, albuminuria, and c
- McAuley, D. F., Hanratty, C. G., McGurk, C., Nugent, A. G., and Johnston, G. D. Effect of methionine supplementation on endothelial function, plasma homocysteine, and lipid peroxidation. J.Toxicol.Clin.Toxicol. 1999;37(4):435-440. PubMed
- Hanratty, C. G., McGrath, L. T., McAuley, D. F., Young, I. S., and Johnston, G. D. The effects of oral methionine and homocysteine on endothelial function. Heart 2001;85(3):326-330. PubMed
- Ward, M., McNulty, H., McPartlin, J., Strain, J. J., Weir, D. G., and Scott, J. M. Effect of supplemental methionine on plasma homocysteine concentrations in healthy men: a preliminary study. Int.J.Vitam.Nutr.Res. 2001;71(1):82-86. PubMed
- Yaghmai, R., Kashani, A. H., Geraghty, M. T., Okoh, J., Pomper, M., Tangerman, A., Wagner, C., Stabler, S. P., Allen, R. H., Mudd, S. H., and Braverman, N. Progressive cerebral edema associated with high methionine levels and betaine therapy in a patient
- Talukdar R, Murthy HV, Reddy DN. Role of methionine containing antioxidant combination in the management of pain in chronic pancreatitis: a systematic review and meta-analysis. Pancreatology 2015;15(2):136-44. PubMed
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. Washington, DC: The National Academies Press, 2005. Available at: https://doi.org/10.17226 DOI
- Khairan P, Sobue T, Eshak ES, et al. Association of B Vitamins and Methionine Intake with the Risk of Gastric Cancer: The Japan Public Health Center-based Prospective Study. Cancer Prev Res (Phila) 2022;15(2):101-110. PubMed
Lysine 7 references
- Thein DJ, Hurt WC. Lysine as a prophylactic agent in the treatment of recurrent herpes simplex labialis. Oral Surg Oral Med Oral Pathol 1984;58:659-66. PubMed
- McCune MA, Perry HO, Muller SA, O'Fallon WM. Treatment of recurrent herpes simplex infections with L-lysine monohydrochloride. Cutis 1984;34:366-73.
- DiGiovanna JJ, Blank H. Failure of lysine in frequently recurrent herpes simplex infection. Treatment and prophylaxis. Arch Dermatol 1984;120:48-51. DOI
- Milman N, Scheibel J, Jessen O. Lysine prophylaxis in recurrent herpes simplex labialis: a double-blind, controlled crossover study. Acta Derm Venereol 1980;60:85-7.
- Griffith RS, Walsh DE, Myrmel KH, et al. Success of L-lysine therapy in frequently recurrent herpes simplex infection. Treatment and prophylaxis. Dermatologica 1987;175:183-90. DOI
- Lo JC, Chertow GM, Rennke H, Seifter JL. Fanconi's syndrome and tubulointerstitial nephritis in association with L-lysine ingestion. Am J Kidney Dis 1996;28:614-7. PubMed
- Smriga M, Torii K. L-Lysine acts like a partial serotonin receptor 4 antagonist and inhibits serotonin-mediated intestinal pathologies and anxiety in rats. Proc Natl Acad Sci U S A. 2003 Dec 23;100(26):15370-5.
L-cysteine 2 references
- Dowlati Y, Maheux M, Meyer JH. The effect of oral L-cysteine on breast milk and plasma cysteine concentrations. Neuropsychiatr Dis Treat 2020;16:3163-3172.
- Lee S, Han KH, Nakamura Y, et al. Dietary L-cysteine improves the antioxidative potential and lipid metabolism in rats fed a normal diet. Biosci Biotechnol Biochem 2013;77(7):1430-4.
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