Croda Personal Care
Croda Personal Care

Keravis™: The Science of Hair Strength

Designed to deliver optimal anti-breakage benefits, Keravis is a multifaceted protein based complex which acts on all of the three fundamental parameters of hair strength -- tensile properties, bending modulus and cuticle abrasion.

The unique chemical composition of Keravis enables it to penetrate the hair cuticle, building strength from within, while providing film forming effects to reinforce, lubricate and protect the hair surface.

Major Benefits: 

  • Hair strengthening active
  • Able to triple the strength of damaged hair compared to a control conditoner
  • Consumer-perceivable improvement in hair strength

Unique Features:  

  • Strengthens hair to resist combing damage
  • Outperforms the strengthening/anti-breakage properties of Panthenol
  • Proven efficacy from rinse-off systems
  • Water soluble


Anti-breakage Benefits from Rinse-off Systems

The strengthening properties of Keravis were assesed in conditioner and shampoo using the flexabrasion method on hair weakened by bleaching. The results are expressed as a percentage change in hair strength compared to the untreated control virgin hair fiber.


Studies demonstrated that a conditioner containing Keravis at only 0.25% (1.5% as supplied) active delivers three times the strengthening or anti-breakage benefits compared to the same conditioner without Keravis (control conditioner). It is interesting to not that bleached hair treated with the Keravis conditioner is 175% stronger than the virgin hair fibers.

Keravis Graph 1 Keravis Graph 2 

Consumer-Perceivable Strengthening

31 out of the 34 respondents (91%) selected the tress treated with the Keravis shampoo as looking strongest and healthiest. The tress treated with Keravis appeared less damaged with more shine, aligned fibers and tamed fuzzy ends. Keravis gives a clear visually-perceivable improvement in the appearance of the hair after repeated combing.

Keravis Graph 3


Keravis Girl 1
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