Extra Strength Hair, Skin & Nails by Nature's Bounty Optimal Solutions — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
52% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

3 Softgel(s) Serving Size

10 Servings

Other Combinations Product Type

52% Evidence Coverage

Supplement Facts — Evidence Check

Calories

15 Calorie(s)

Total Fat

1 Gram(s) (2% DV)

Vitamin A

5000 IU (100% DV)

Vitamin C

60 mg (100% DV)

Vitamin D

800 IU (200% DV)

✅ 1.3× RDA — within safe limits 📚 604 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.02mg UL 0.1mg

Vitamin E

15 IU (50% DV)

✅ Within RDA (0.7× RDA of 15 mg) 📚 177 studies (Tier A: 3, B: 90)

RDA 15mg This product: 10.05mg UL 1000mg

Thiamine

5 mg (333% DV)

📊 4.2× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)

RDA 1.2mg This product: 5mg

Riboflavin

5 mg (294% DV)

📊 3.8× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)

RDA 1.3mg This product: 5mg

Niacin

25 mg (125% DV)

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

RDA 14mg This product: 25mg UL 35mg

Vitamin B6

5 mg (250% DV)

📊 3.8× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)

RDA 1.3mg This product: 5mg UL 100mg

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

Vitamin B12

8 mcg (133% DV)

📊 3.3× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)

RDA 0.0024mg This product: 0.008mg

Biotin

5000 mcg (1667% DV)

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

RDA 0.03mg This product: 5.0mg

Pantothenic Acid

15 mg (150% DV)

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

RDA 5mg This product: 15mg

Iron

3 mg (17% DV)

Zinc

7.5 mg (50% DV)

✅ Within RDA (0.7× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 7.5mg UL 40mg

Selenium

12.5 mcg (18% DV)

✅ Within RDA (0.2× RDA of 0.055 mg) 📚 172 studies (Tier A: 0, B: 67)

RDA 0.055mg This product: 0.0125mg UL 0.4mg

Manganese

5 mg (250% DV)

✅ 2.2× RDA — within safe limits 📚 8 studies — no high-quality reviews

RDA 2.3mg This product: 5mg UL 11mg

Argan Oil

25 mg

PABA

10 mg

📊 Market median: 500.0mg (9 products)

This product: 10mg

Choline Bitartrate

10 mg

📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)

RDA 550mg This product: 10mg UL 3500mg

Alpha Lipoic Acid

10 mg

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

This product: 10mg

Horsetail

3 mg

hydrolyzed Collagen

50 mg

📊 Market median: 20.0mg (931 products) 📚 233 studies (Tier A: 1, B: 90)

This product: 50mg

Hyaluronic Acid

30 mg

📊 Market median: 100.0mg (173 products)

Median 100.0mg This product: 30mg

Other Ingredients

Soybean Oil Gelatin Vegetable Glycerin Soy Lecithin Contains Less Than 2% of

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 Dairy Free Sugar Free

Product Information

📋 Directions for Use

DIRECTIONS: For adults, take three (3) softgels daily, preferably with a meal.

⚠️ Warnings & Precautions

Not intended for use by persons under the age of 18.

Do not use if seal under cap is broken or missing.

WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. KEEP THIS PRODUCT OUT OF REACH OF CHILDREN. In case of accidental overdose, call a doctor or Poison Control Center immediately.

Contains soy and tree nut (argan) ingredients.

WARNING: If you are pregnant, nursing, taking any medications, planning any medical or surgical procedure or have any medical condition, consult your doctor before use.

Avoid this product if you are allergic to yeast.

It is advisable to consult your doctor before using biotin doses above 2,500 mcg per day. If any adverse reactions occur, stop use and consult your doctor.

🧪 Formulation Notes

No Artificial Flavor, No Preservatives, No Sugar, No Starch, No Milk, No Lactose, No Gluten, No Wheat, No Fish.

Antioxidants C & E Hyaluronic Acid 100% Daily Value of 11 Key ingredients

ARGAN OIL INFUSED

With Biotin 5000 mcg per serving Antioxidants C & E Plus Hyaluronic Acid

Contains soy and tree nut (argan) ingredients.

Additional Information

Store at room temperature.

Guaranteed Quality Laboratory Tested

Source: Nielsen xAOC 52 weeks ending 2/20/16.

Nutrition Questions or Comments? Call 1-800-433-2990 Mon.- Sat. 9 AM - 7 PM ET Join our Loyalty Program at NaturesBountyRewards.com

Prod. No. 64743 01B B53215

LUSTROUS HAIR* HEALTHY NAILS* VIBRANT SKIN*

Being healthy is always beautiful.

It contains just the right balance of nutrients to support lustrous hair, healthy nails and vibrant skin.* This innovative formula provides you with the vital nutrients and ingredients in beauty care to support your natural beauty from within.* High potency B Vitamins help with energy metabolism and Biotin helps to maintain healthy hair and nails.* Vitamin E is an antioxidant and Vitamin C is involved in collagen production and formation, which forms the basis for vibrant skin.* Vitamin A assists with skin maintenance and overall health.*

EASY TO SWALLOW SOFTGELS

Part No. 22-64743

100-PET-CRC-F-B1713

Made in the USA with select ingredients from around the world

THE #1 BRAND FOR HAIR, SKIN & NAILS

Health & Beauty

Product Details

UPC / SKU 0 74312 00038 6

DSLD Entry Date 2016-10-22

Product Type Other Combinations

Form Softgel Capsule

Brand Nature's Bounty Optimal Solutions

DSLD ID 65709

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 →