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Dietary supplement

Maximum Nails Ingredients & Drug Interactions

by Supplement Spot

Maximum Nails label
See full label image
Tablet Or Pill Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Maximum Nails 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

The interaction bottom line Most serious interaction: Moderate

Maximum Nails is a dietary supplement by Supplement Spot with 3 active ingredients. Its ingredients are commonly taken for hair, skin, and nail health, bone health and osteoporosis, joint and connective tissue support.Based on those ingredients, 86 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Cysteine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Maximum Nails by Supplement Spot

Ask about any prescription or over-the-counter medication and we check it for interactions with Maximum Nails by Supplement Spot — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Maximum Nails by Supplement Spot

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 3 of its 3 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Maximum Nails has three active ingredients. Silicon dioxide is included for bone and dental health support; biotin is a B-vitamin meant to address biotin deficiency; and L-cysteine is an amino acid (a building block protein).

Together they're intended to support nail health. The tablet also contains several inactive ingredients—fillers and binders like microcrystalline cellulose, dicalcium phosphate, magnesium stearate, and others—that help hold the tablet together.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: healthy, stronger nails and nail growth.
  • We looked for evidence on: Brittle nails, Biotin deficiency, Nail keratin, Nail quality.
  • The strongest evidence on file: Biotin is rated "Likely Effective" for Biotin deficiency (Natural Medicines).
  • Also on file: Biotin is rated "Insufficient Reliable Evidence To Rate" for Brittle nails.

The evidence for these ingredients supporting nail health specifically is not established in the data we hold. Silicon is possibly effective for osteoporosis but has insufficient evidence for hair loss and dental concerns.

Biotin is effective for biotin deficiency but appears possibly ineffective for multiple sclerosis and seborrheic dermatitis, with insufficient evidence for hair loss. L-cysteine has insufficient evidence for the conditions our data covers—including hair loss, leg ulcers, and stroke.

None of the three carry an effectiveness rating for nails themselves.

The evidence, ingredient by ingredient Silicon Biotin L-cysteine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 2 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Silicon dioxide is generally well tolerated in the amounts found in food and supplements, though long-term safety at high doses hasn't been well studied. It's not recommended during pregnancy or breastfeeding due to insufficient safety data.

Biotin is generally considered safe and well tolerated, even at fairly high doses, because your body excretes excess in urine. Both dietary and prenatal amounts are fine, but check with your doctor before taking high-dose supplements.

L-cysteine is generally well tolerated in food amounts, but high-dose supplement safety over time isn't well studied. Food amounts are fine, but supplement-level doses warrant caution and your doctor's input.

All three ingredients are rated likely safe for pregnancy and breastfeeding at normal dietary and supplement levels.

Side effects, ingredient by ingredient Silicon Biotin L-cysteine

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 3 matched ingredients can interact with medications — L-cysteine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 86 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take antidiabetes drugs (medications for blood sugar), check your specific medication with the tool below before starting this product—L-cysteine may increase your risk of low blood sugar (hypoglycemia). No other interactions are documented for the ingredients we could check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Maximum Nails is meant to support nail health using biotin, silicon, and L-cysteine. If you take diabetes medication, you'll want to check with us first—L-cysteine may lower your blood sugar.

Otherwise, this product is generally well tolerated, though the evidence for nail support itself isn't established in our data. Chat with your pharmacist about whether it's right for you.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 3 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Mar 22, 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

At a glance

General information

Key facts about Maximum Nails, straight from the product label.

Brand Supplement Spot
Net contents 60 Tablet(s)
Market status On market
Date entered into DSLD Mar 22, 2024
DSLD ID 310056
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
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 Maximum Nails by Supplement Spot, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Tablet(s)
Maximum serving Sizes:
1 Tablet(s)
Servings per container
60
IngredientAmount% DV
Silicon Dioxide10 mg--
Biotin3000 mcg10000%
L-Cysteine50 mg--

Other ingredients: Microcrystalline Cellulose, Methocel, Dicalcium Phosphate, Stearin, Magnesium Stearate, Hypromellose, Titanium Dioxide, Tricetin, Vanilla Flavor, Natural

Tap any ingredient to jump to its full detail below.

Label statements
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

Healthier, stronger nails starts here.

Maximum nails provides three essential building blocks for healthy nail growth. Specifically targets stimulating nail keratinization while supporting nail strength and quality.

Supports healthier, stronger nails

Lactose-free. No Added: Wheat, gluten, sugar, starch, yeast, corn, soy, preservatives, artificial colors.

Guaranteed Potency

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.

FDA Statement of Identity

Dietary Supplement

Storage

Caution: Keep tightly closed in a cool, dry place at a temperature of 15-30 degrees C (59-86 degrees F) and out of reach of children.

Precautions

Caution: Keep tightly closed in a cool, dry place at a temperature of 15-30 degrees C (59-86 degrees F) and out of reach of children.

Do not use if inner or outer neck band are broken.

Seals/Symbols

Formulated in USA

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Maximum Nails by Supplement Spot label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Maximum Nails label

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)
What’s inside

The Ingredients in Maximum Nails by Supplement Spot

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container60 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.

Silicon Dioxide

No known
interactions
10 mg per serving

Silicon is a trace mineral found in the body and in foods like oats, barley, and certain fruits and vegetables, and it is popular in supplements for h...

Silicon Dioxide monograph & interactions

Biotin

No known
interactions
3000 mcg per serving

Biotin (vitamin B7) is a water-soluble vitamin your body needs to turn food into energy and to support healthy hair, skin, and nails. Most people get...

Biotin monograph & interactions

L-Cysteine

Interacts with
86 drugs
50 mg per serving

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 & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Methocel, Dicalcium Phosphate, Stearin, Magnesium Stearate, Hypromellose, Titanium Dioxide, Tricetin, Vanilla Flavor, Natural. These complete the product’s ingredient list but are not active constituents.

Interaction report

Maximum Nails by Supplement Spot Drug Interactions

Want to check YOUR meds against Maximum Nails?

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 checker
86Drugs
86 Moderate

Ingredients driving the most interactions

L-Cysteine 86

Individual Drug Interactions

The ingredients in Maximum Nails interact with 86 drugs. Click any drug to see the details.

1 of the 3 ingredients in Maximum Nails interact with drugs. Each result below shows which ingredient is responsible. L-Cysteine

Each ingredient & the kinds of drugs it affects

For each ingredient in Maximum Nails with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

L-Cysteine1 drug type · 86 drugs

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.

Likelihood Possible Evidence D
L-Cysteine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Maximum Nails, from the product label.

Supplement Spot

See all Supplement Spot products
Name
Supplement Spot, LLC
Street Address
1828 Touby Pike
City
Kokomo
State
IN
ZipCode
46901
Phone Number
866-285-1998
Web Address
supplementspot.com
Pharmacist Counseling Corner

Maximum Nails by Supplement Spot: Common Questions

Does Maximum Nails by Supplement Spot interact with any medications?
Yes. Based on its ingredients, Maximum Nails has a known interaction with 86 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Maximum Nails contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take Maximum Nails while pregnant or breastfeeding?
The three active ingredients are rated likely safe at normal dietary and supplement amounts during pregnancy and breastfeeding. That said, silicon has a caution note suggesting you avoid high-dose supplements in pregnancy and breastfeeding due to limited safety data, and biotin recommends checking with your doctor before taking high-dose products. Talk to your pharmacist or doctor about what's right for your situation.
What's biotin and why is it in here?
Biotin is a B-vitamin. It's effective for treating biotin deficiency, and it's included in this nail product on the theory that it supports nail health. However, the evidence for biotin's effect on nails specifically isn't established in our data.
What does L-cysteine do?
L-cysteine is an amino acid—one of the building blocks that make up protein. It's included for nail support, though the evidence for that specific benefit is insufficient. The main thing you need to know is that if you take diabetes medication, L-cysteine may lower your blood sugar.
Can high doses of biotin cause side effects?
Biotin is very well tolerated, even at fairly high doses, because excess is simply removed in your urine. Mild diarrhea has been rarely reported with very high doses—a small number of people taking 300 mg daily experienced transient mild diarrhea. For this reason, check with your doctor before taking high-dose biotin supplements.
Is silicon dioxide safe to swallow?
Yes, orally, silicon in the amounts found in food and supplements is not associated with adverse effects. The serious lung and occupational health risks occur from breathing crystalline silicon dust in industrial settings, not from taking it by mouth in a supplement.
Does this product have fillers?
Yes, it contains several inactive ingredients including microcrystalline cellulose, dicalcium phosphate, magnesium stearate, and others. These are standard binders and fillers that help hold the tablet together.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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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.

Maximum Nails label
Go deeper

The Full Monographs Behind Maximum Nails’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Silicon

Silicon is a trace mineral found in the body and in foods like oats, barley, and certain fruits and vegetables, and it is popular in supplements for hair, skin, nail, and bone health. Some s...

Read the full Silicon monograph → Herb & supplement monograph

Biotin

Biotin (vitamin B7) is a water-soluble vitamin your body needs to turn food into energy and to support healthy hair, skin, and nails. Most people get plenty from a normal diet, and true defi...

Read the full Biotin monograph → Herb & supplement monograph

L-cysteine

Interacts with 86 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 supplements are usually well tolerated, bu...

Read the full L-cysteine monograph →
Sources

Sources & How We Checked

Maximum Nails'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.

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 25 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.

Silicon 19 references
  1. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  2. Jugdaohsingh R, Anderson SH, Tucker KL, et al. Dietary silicon intake and absorption. Am J Clin Nutr 2002;75:887-93. PubMed
  3. Ichiyanagi O, Sasagawa I, Adachi Y, et al. Silica urolithiasis without magnesium trisilicate intake. Urol Int 1998;61:39-42. PubMed
  4. Levison DA, Crocker PR, Banim S, Wallace DM. Silica stones in the urinary bladder. Lancet 1982;1:704-5. PubMed
  5. Lee MH, Lee YH, Hsu TH, et al. Silica stone--development due to long time oral trisilicate intake. Scand J Urol Nephrol 1993;27:267-9. PubMed
  6. Cruz Guerra, N. A., Gomez Garcia, M. A., Lovaco, Castellano F., Saez Garrido, J. C., Garcia, Cuerpo E., and Escudero, Barrilero A. [Silica urolithiasis: report of a new case]. Actas Urol.Esp 2000;24(2):202-204.
  7. Merget, R., Bauer, T., Kupper, H. U., Philippou, S., Bauer, H. D., Breitstadt, R., and Bruening, T. Health hazards due to the inhalation of amorphous silica. Arch Toxicol. 2002;75(11-12):625-634. PubMed
  8. Khuder, S. A., Peshimam, A. Z., and Agraharam, S. Environmental risk factors for rheumatoid arthritis. Rev Environ Health 2002;17(4):307-315. PubMed
  9. McLaughlin, J. K., Chow, W. H., and Levy, L. S. Amorphous silica: a review of health effects from inhalation exposure with particular reference to cancer. J Toxicol.Environ Health 4-25-1997;50(6):553-566. DOI
  10. Pelucchi, C., Pira, E., Piolatto, G., Coggiola, M., Carta, P., and La, Vecchia C. Occupational silica exposure and lung cancer risk: a review of epidemiological studies 1996-2005. Ann.Oncol. 2006;17(7):1039-1050. PubMed
  11. Gillissen, A., Gessner, C., Hammerschmidt, S., Hoheisel, G., and Wirtz, H. [Health significance of inhaled particles]. Dtsch.Med Wochenschr. 3-24-2006;131(12):639-644.
  12. Hu, J. F., Qu, H., and Wang, J. Z. [Meta analysis for relationship between exposure of free silicon dioxide and lung tumor]. Zhonghua Lao.Dong.Wei Sheng Zhi.Ye.Bing.Za Zhi. 2006;24(7):415-417.
  13. Jugdaohsingh, R. Silicon and bone health. J Nutr Health Aging 2007;11(2):99-110.
  14. Lacasse, Y., Martin, S., Gagne, D., and Lakhal, L. Dose-response meta-analysis of silica and lung cancer. Cancer Causes Control 2009;20(6):925-933. PubMed
  15. McCormic, Z. D., Khuder, S. S., Aryal, B. K., Ames, A. L., and Khuder, S. A. Occupational silica exposure as a risk factor for scleroderma: a meta-analysis. Int Arch Occup.Environ Health 2010;83(7):763-769. PubMed
  16. Haddad, F. S. and Kouyoumdjian, A. Silica stones in humans. Urol.Int 1986;41(1):70-76. PubMed
  17. Tervaert, J. W., Stegeman, C. A., and Kallenberg, C. G. Silicon exposure and vasculitis. Curr Opin.Rheumatol 1998;10(1):12-17. PubMed
  18. Steenland, K. and Stayner, L. Silica, asbestos, man-made mineral fibers, and cancer. Cancer Causes Control 1997;8(3):491-503. PubMed
  19. Boqué N, Valls RM, Pedret A, Puiggrós F, Arola L, Solà R. Relative absorption of silicon from different formulations of dietary supplements: a pilot randomized, double-blind, crossover post-prandial study. Sci Rep 2021;11(1):16479. PubMed

See these in context on the Silicon monograph →

Biotin 4 references
  1. Debourdeau PM, Djezzar S, Estival JL, et al. Life-threatening eosinophilic pleuropericardial effusion related to vitamins B5 and H. Ann Pharmacother 2001;35:424-6. DOI
  2. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
  3. Mock DM, Quirk JG, Mock NI. Marginal biotin deficiency during normal pregnancy. Am J Clin Nutr 2002;75:295-9. PubMed
  4. Sedel F, Papeix C, Bellanger A, Touitou V, Lebrun-Frenay C, Galanaud D, et al. High doses of biotin in chronic progressive multiple sclerosis: a pilot study.Mult Scler Relat Disord. 2015;4(2):159-69. doi: 10.1016/j.msard.2015.01.005. PubMed

See these in context on the Biotin monograph →

L-cysteine 2 references
  1. 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.
  2. 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.

See these in context on the L-cysteine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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