Find products and ingredients Learn how Skin Deep® works Meet our experts Discover EWG VERIFIED®
Product score: 02

Data Availability:

Limited

Nail-Aid - Biotin Ultimate Strength - Concentrated Viamin B7

Nail-Aid - Biotin Ultimate Strength - Concentrated Viamin B7

WHERE TO BUY

When you make a purchase through retailer links on our site, we may earn commission through affiliate programs. All affiliate fees EWG receives support our nonprofit mission. Learn more here

CATEGORY

Nail Treatment

BRAND

Nail Aid

DATA LAST UPDATED

June 2023

Ingredient concerns

See how this product scores for common concerns.

  • MODERATE
    Cancer
  • LOW
    Allergies & Immunotoxicity
  • LOW
    Developmental and Reproductive Toxicity
  • HIGH
    Use Restrictions

Ingredient scores

Ingredients are scored based on their formulation and concentration in this product. Click on an ingredient for more information.

Ingredient score: 01
ETHYL ACETATE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) fragrance ingredient, solvent, perfuming
CONCERNS • Irritation (skin, eyes, or lungs) (high)
• Occupational hazards (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BUTYL ACETATE
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) fragrance ingredient, solvent, masking
CONCERNS • Irritation (skin, eyes, or lungs) (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
NITROCELLULOSE
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) film former, suspending agent - nonsurfactant, film forming
CONCERNS • Non-reproductive organ system toxicity (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
PHTHALIC ANHYDRIDE/ TRIMELLITIC ANHYDRIDE/ GLYCOLS COPOLYMER
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) film former, viscosity increasing agent - nonaqueous, film forming, viscosity controlling
CONCERNS • Use restrictions (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
ISOPROPYL ALCOHOL
Data Availability: Good
Expand content Collapse content
FUNCTION(S) antifoaming agent, fragrance ingredient, solvent, viscosity decreasing agent, antifoaming, perfuming, viscosity controlling
CONCERNS • Allergies/immunotoxicity (low)
• Enhanced skin absorption
• Non-reproductive organ system toxicity (moderate)
• Irritation (skin, eyes, or lungs) (high)
• Occupational hazards (moderate)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
ACETYL TRIBUTYL CITRATE
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) fragrance ingredient, plasticizer, film forming, masking, perfuming, plasticiser
CONCERNS • Multiple, additive exposure sources (low)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
STEARALKONIUM HECTORITE
Data Availability: None
Expand content Collapse content
FUNCTION(S) suspending agent - nonsurfactant, gel forming, viscosity controlling
CONCERNS • Contamination concerns (NITROSAMINES and FREE AMINES)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
BIOTIN
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) hair conditioning agent, skin-conditioning agent - miscellaneous, antiseborrhoeic, hair conditioning, skin conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
CALCIUM PANTOTHENATE
Appeared as: CALCIUM PANTOTHENATE (VITAMIN B5)
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) hair conditioning agent, antistatic, hair conditioning
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 05
VITAMIN D3
Appeared as: CHOLECALCIFEROL (VITAMIN D)
Data Availability: Fair
Expand content Collapse content
FUNCTION(S) skin-conditioning agent - miscellaneous
CONCERNS • Use restrictions (high)
• Non-reproductive organ system toxicity (moderate)
• Occupational hazards (high)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 02
ACRYLATES COPOLYMER
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) adhesive, artificial nail builder, binder, film former, hair fixative, suspending agent -nonsurfactant, antistatic, binding, film forming
CONCERNS • Use restrictions (low)
• Irritation (skin, eyes, or lungs) (low)
• Contamination concerns (METHACRYLIC ACID, ACRYLIC ACID, and 2-ETHYLHEXYL ACRYLATE)
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 01
ETOCRYLENE
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) ultraviolet light absorber, uv absorber
LEARN MORE ABOUT THIS INGREDIENT
Ingredient score: 03
D&C VIOLET NO. 2 (CI 60725)
Appeared as: CI 60725 (VIOLET 2)
Data Availability: Limited
Expand content Collapse content
FUNCTION(S) colorant
CONCERNS • Cancer (moderate)
• Allergies/immunotoxicity (low)
• Use restrictions (high)
• Endocrine disruption (low)
• Non-reproductive organ system toxicity (moderate)
• Ecotoxicology (low)
LEARN MORE ABOUT THIS INGREDIENT

Ingredients from packaging:

Ethyl Acetate, Butyl Acetate, Nitrocellulose, Phthalic Anhydride/Trimellitic Anhydride/ Glycols Copolymer, Isopropyl Alcohol, Acetyl Tributyl Citrate, Stearalkonium Hectorite, Biotin (Vitamin B7), Calcium Pantothenate (Vitamin B5), Acrylates Copolymer, Etocrylene, CI 60725 (Violet 2)

Directions from packaging:

Use alone: Apply 2 coats over dry, clean nails. Let each coat dry before applying another coat. Use with nail color: Apply as base \u0026 top coat. For longest-lasting protection, apply another coat every 3 days. Remove easily with nail polish remover.

Product's animal testing policies

Some cosmetics companies have taken People for the Ethical Treatment of Animals and Leaping Bunny animal-testing pledges. For consumers who are concerned about companies’ policies on animal testing, Skin Deep reports this information.


PETA Cruelty-free Companies

Companies that join the "Caring Consumer" program of People for the Ethical Treatment of Animals, a leading international animal rights advocacy organization, attest that "neither they nor their ingredient suppliers conduct or commission any animal tests on ingredients, formulations or finished products, and that they pledge not to do so in the future."

LEARN MORE ON PETA.ORG

Leaping Bunny

Products bearing the Leaping Bunny mark are certified cruelty-free under the Humane Household Products Standard, managed in the U.S. and Canada by the Coalition for Consumer Information on Cosmetics, a coalition of eight national animal protection groups. Participating companies must open their processes to independent audits throughout the supply chain.

LEARN MORE ON LEAPINGBUNNY.ORG

Understanding scores

Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.

Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.

HOW WE DETERMINE SCORES

Hazard score

The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG VERIFIED® mark means a product meets EWG’s strictest criteria for transparency and health.

Score legend

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST
Low Availability
Moderate Availability
High Availability

More nail treatment

VIEW ALL nail treatment
Skindeep Healthy Living App

EWG research
on the go

Find personal care, cleaning, and food products on the EWG Healthy Living app.

DOWNLOAD THE APP