Hydrolyzed Rice Protein

Best

Plant extracts

Hydrolyzed Rice Protein at a glance

  • Most well known as a skin/hair conditioning agent
  • Research shows the benefits extend to anti-aging thanks to antioxidant and peptide content
  • May help with evening skin tone
  • Rich in amino acids
  • Can be “upcycled” as a byproduct of the rice production process

Hydrolyzed Rice Protein description

Hydrolyzed rice protein (also known as rice protein hydrolysate) is typically categorized as a skin/hair conditioning agent, but research shows its benefits extend beyond that thanks to its antioxidant and peptide content. Furthermore, studies indicate this ingredient has potential for evening skin tone and helps to inhibit certain processes in skin that cause dehydration. It’s also worth noting that hydrolyzed rice protein is rich in amino acids. Technically speaking, hydrolyzed rice protein is derived from rice grains that have undergone hydrolysis (chemically reacted) with an acid, enzyme or other methods. This ingredient can be “upcycled” as a byproduct of the rice production process. Hydrolyzed rice protein was reaffirmed as a safe cosmetic ingredient in the 2006 Cosmetic Ingredient Review report. The notated concentrations levels of hydrolyzed rice protein at that time were between 0.1–2.0% but more recent usage levels suggested by cosmetic suppliers may be higher (up to 5% based on what we found).

Hydrolyzed Rice Protein references

  • Personal Care Products Council, Accessed January 2023, ePublication
  • UL Prospector (supplier info), Accessed January 2023, ePublication
  • Molecules, June 2021, pages 1-16
  • Food & Function, 2020, pages 8,757-8,767
  • International Journal of Toxicology, 2006, pages 91–120

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

Best

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

Good

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

Average

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

Bad

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

Worst

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

unknown

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.