Fresh hair-care guides, ingredient explainers and practical routines.

Keratin

By Richard GreenSeptember 4, 2026Updated September 4, 20261 min read
Original Kenz Shampoo hair-care illustration
This content is for general education and is not a medical diagnosis or personalised treatment advice.

What It Is

A protein-related ingredient name used in some strengthening or conditioning products; formulation and hydrolysis level matter.

Why It Is Used

This ingredient may appear in hair or scalp products for a specific functional or cosmetic reason. The effect of a finished product depends on the full formula, concentration, usage instructions and individual response.

Practical Considerations

Check the product label, follow directions, and stop use if significant irritation occurs. Health-sensitive or medicated products may require additional professional guidance.