Hair, Skin & Nails Formula by GNC Women's — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
44% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

2 Caplet(s) Serving Size

30 Servings

Other Combinations Product Type

44% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A

5000 IU (100% DV)

Vitamin C

120 mg (200% DV)

Vitamin D

200 IU (50% DV)

✅ Within RDA (0.3× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.005mg UL 0.1mg

Vitamin E

30 IU (100% DV)

✅ 1.3× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)

RDA 15mg This product: 20.1mg UL 1000mg

Thiamine

1.5 mg (100% DV)

✅ 1.2× RDA — within safe limits 📚 76 studies (Tier A: 0, B: 33)

RDA 1.2mg This product: 1.5mg

Riboflavin

1.7 mg (100% DV)

✅ 1.3× RDA — within safe limits 📚 12 studies (Tier A: 0, B: 1)

RDA 1.3mg This product: 1.7mg

Niacin

20 mg (100% DV)

✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)

RDA 14mg This product: 20mg UL 35mg

Folic Acid

200 mcg (50% DV)

✅ Within RDA (0.5× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)

RDA 0.4mg This product: 0.2mg UL 1.0mg

Biotin

3000 mcg (1000% DV)

📊 100.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)

RDA 0.03mg This product: 3.0mg

Pantothenic Acid

13.5 mg (135% DV)

✅ 2.7× RDA — within safe limits 📚 1 studies — no high-quality reviews

RDA 5mg This product: 13.5mg

Calcium

200 mg (20% DV)

Phosphorus

100 mg (10% DV)

✅ Within RDA (0.1× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)

RDA 700mg This product: 100mg UL 4000mg

Zinc

15 mg (100% DV)

✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 15mg UL 40mg

L-Cysteine

200 mg

MSM

100 mg

📊 Market median: 1000.0mg (2 products)

This product: 100mg

hydrolyzed Gelatin

100 mg

L-Methionine

50 mg

📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews

This product: 50mg

Alpha-Lipoic Acid

10 mg

📊 Market median: 200.0mg (198 products) 📚 6 studies — no high-quality reviews

This product: 10mg

DMAE

10 mg

Green Tea leaf extract

10 mg

📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)

This product: 10mg

Horsetail Rush

3 mg

Boron

1 mg

📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews

This product: 1mg UL 20mg

Pantesin Pantethine

1500 mcg

Lutemax 2020 Lutein

500 mcg

📊 Market median: 10.0mg (105 products) 📚 1 studies (Tier A: 0, B: 1)

This product: 0.5mg

Zeaxanthin

125 mcg

📊 Market median: 4.0mg (32 products)

This product: 0.125mg

Other Ingredients

Cellulose Stearic Acid Magnesium Stearate Titanium Dioxide natural Vanilla flavor Vegetable Acetoglycerides Chlorophyllin Sucralose

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take two caplets daily with food.

⚠️ Warnings & Precautions

Contains: Fish and soybeans.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medication, or have a medical condition.

Discontinue use two weeks prior to surgery.

Keep out of reach of children.

🧪 Formulation Notes

Contains: Fish and soybeans.

No artificial colors, no artificial flavors, no wheat, gluten free, no dairy, yeast free.

Gf Gluten free

3,000 mcg of biotin for beautiful hair, skin & nails

Get support for beautiful hair, skin and nails with this comprehensive daily nutritional program. Biotin Features 3,000 mcg of biotin, an essential vitamin for healthy hair, skin and nails, as well as energy metabolism.

Additional Information

CODE 303911 JRG

This Program Includes: Hair, Skin & Nails Formula

Conforms to USP <2091> for weight. Meets USP <2040> disintegration. Actual size

Store in a cool, dry place.

Gf Gluten free

Our quality commitment to you Since 1935, our mission as the industry leader has been to provide you with the highest-quality nutritional supplements. We continue to stand behind this mission. If you're not 100% satisfied with your purchase, return the unused portion of the product with your receipt within 30 days and we'll either refund your money or find you a replacement product that is right for you. Please recycle this box.

Comprehensive nutritional program to support beauty from within

30-day program

Product Details

DSLD Entry Date 2017-10-21

Product Type Other Combinations

Form Other (e.g. tea bag)

Brand GNC Women's

Bundle Hair, Skin & Nails Program

DSLD ID 79158

Data Updated 2026-04-11

Research Evidence

337 Research Sources

54 Avg Quality Score

161 Meta Analysis

68 Systematic Review

51 Rct

48 Clinical Trial

2 Other

2 Regulatory Source

1 Narrative Review

1 Cochrane Review

1 Guideline

1 Openfda Safety

A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis

Meta Analysis BMJ (Clinical research ed.) 2011

PubMed DOI

A Fortification of staple foods with vitamin A for vitamin A deficiency

Systematic Review The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age

Narrative Review The Cochrane database of systematic reviews 2016

PubMed DOI Cochrane

A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa

Meta Analysis The Cochrane database of systematic reviews 2020

PubMed DOI

A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Journal of sport and health science 2023

PubMed DOI

A Food fortification with multiple micronutrients: impact on health outcomes in general population

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI

A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age

Meta Analysis The Cochrane database of systematic reviews 2024

PubMed DOI

View all evidence for Vitamin A →