Hydrolyzed Silk



Hydrolyzed Silk description

Hydrolyzed silk is an animal-derived byproduct made by hydrolyzing the silk protein obtained from the spent cocoon of the silkworm. Helps to condition skin and hair, imparting a smooth feel.

Hydrolyzed Silk references

  • International Journal of Toxicology, November/December 2020, pages 127S-144S
  • BioMed Research International, November 2016, pages 1-19
  • Medical Science Monitor, April 2016, pages 1,064-1,078
  • International Journal of Cosmetic Science, October 2009, pages 327-345

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.

Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.