Keratin — Ingredients

Category: Ingredients

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The main structural protein of the epidermis, hair, and nails that protects against external damage

What is Keratin?

The main structural protein of the epidermis, hair, and nails that protects against external damage

The primary component of the stratum corneum, protecting skin from physical and chemical irritants. Also essential for hair strength and elasticity.

Key properties & actions

Keratin is known as the primary structural protein that makes up the epidermis, hair, and nails. As the main component of the stratum corneum, it plays a barrier role in protecting the skin from physical and chemical stressors, and is also considered essential for maintaining the strength and elasticity of hair.

How to manage

In skincare, keratin is used in hydrolyzed form as a moisturizing and barrier-supporting ingredient, while in hair care products it is commonly used for managing damaged hair. It should be noted, however, that topically applied keratin does not directly replace the skin's own structural proteins; it is more appropriate to understand its role as providing supplementary moisturizing and coating benefits. Consulting a dermatologist is recommended if scalp or skin issues recur.

Good to know alongside

Mentioned alongside the stratum corneum, structural proteins, and the skin barrier. Often compared with other proteins such as collagen and elastin.

Everyday care tips

Excessive exfoliation may weaken the protective barrier composed of keratin, so adjusting the frequency of exfoliation to an appropriate level is advisable.

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Frequently Asked Questions (FAQ)

What is Keratin?
The main structural protein of the epidermis, hair, and nails that protects against external damage. The primary component of the stratum corneum, protecting skin from physical and chemical irritants. Also essential for hair strength and elasticity.

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Sources & References

Medical Disclaimer

SKINROUTE is not a medical device or healthcare provider. All content is general skincare information for reference only. If you have concerns about your skin, please consult a board-certified dermatologist.