Intact Keratin

Unhydrolyzed, complete keratin protein structure used in certain applications
Proteins Structural Proteins Research: Limited

Scientific Name

Keratin Protein

Classifications

Source: animal
Type: complete-protein

Benefits

  • Supports hair strength and resilience
  • May improve nail hardness and growth
  • Provides building blocks for hair and nail structure
  • Helps repair damaged hair
  • Supports skin barrier function
  • May reduce hair breakage and brittleness

Specific Properties

  • Full protein structure preserved
  • Lower bioavailability than hydrolyzed forms
  • Contains disulfide bonds important for structure
  • More similar to natural hair and nail keratin
  • Limited solubility

Safety Notes

Generally recognized as safe when used as directed. Derived from animal sources (typically sheep wool, feathers, or horns), so not suitable for vegans. Those with allergies to wool or feathers should use caution. Limited data on long-term supplementation. Topical products are generally well-tolerated.

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About Keratin

A fibrous structural protein that is the key component in hair, nails, and the outer layer of skin, used in supplements and cosmetics to support these tissues

Back to Keratin

Forms of Intact Keratin

Keratin Microparticles

Intact keratin processed into microscopic particles for use in cosmetic applications

Proteins Structural proteins Research: Limited

Powdered Keratin

Finely ground keratin for use in various applications

Proteins Structural proteins Research: Very Limited