Find products and ingredients Learn how Skin Deep® works Meet our experts Discover EWG VERIFIED™

Data: Limited

Hydrolyzed Keratin

  • Products with the EWG VERIFIED mark have met use restrictions and warnings based on EWG review of company data.

Other Concerns

Use restrictions (moderate)

SYNONYMS

CATTLE HAIR; CATTLE HAIR; KERATIN HYDROLYZATE; KERATINS, CATTLE HORN, SAPONIFIED AND NEUTRALIZED, HYDROLYSATE PROTEINS, KERATIN, HYDROLYZED ANIMAL KERATIN, HYDROLYZED KERATIN, HYDROLYZED KERATIN POWDER, HYDROLYZED KERATIN SOLUTION, KERATIN HYDROLYSATE PROTEINS, KERATINS, HYDROLYZATES, and PROTEINS, KERATIN, HYDROLYSATE

Hydrolyzed Keratin is a hydrolysate of keratin derived by acid, enzyme or other method ofhydrolysis.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

Expand content Collapse content
conditioner145 products
shampoo116 products
hair treatment/serum80 products
hair color and bleaching41 products
mascara25 products
hair styling aide22 products
styling gel/lotion18 products
hair spray13 products
beard care9 products
detangler9 products
mask8 products
body wash/cleanser7 products
nail treatment7 products
brow liner4 products
exfoliant/scrub4 products
styling mousse/foam4 products
beard oil3 products
serums & essences2 products
cuticle treatment1 products
beard cleanser1 products
1 products
facial cleanser1 products
makeup primer1 products
moisturizer1 products
hand cream1 products
hair relaxer1 products

Use restrictions

Expand content Collapse content
CONCERN REFERENCE
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - Use is restricted in Canadian cosmeticsCanada - Prohibited and Restricted Cosmetics Ingredients

Data gaps

Expand content Collapse content
CONCERN REFERENCE
4 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed

Ecotoxicology

Expand content Collapse content
CONCERN REFERENCE
Not suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Organ system toxicity (non-reproductive)

Expand content Collapse content
CONCERN REFERENCE
Classified as not expected to be potentially toxic or harmfulEnvironment Canada Domestic Substance List
  • Health Canada. 2007. List of Prohibited and Restricted Cosmetic Ingredients. Canada's Cosmetic Ingredient Hotlist. March 2007.
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.

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

Can’t find your product?

Enter the ingredients in EWG’s Build Your Own Report tool to get an approximate score for that product.

BUILD YOUR OWN REPORT

EWG research
on the go

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

DOWNLOAD THE APP