The hair cortex, which lies beneath the cuticle, contains natural keratin and moisture that keep the hair flexible. These amino acids form strong disulfide bonds, which create a rigid and durable matrix.
The Science of Hair Keratin: How This Protein Strengthens and Protects Your Hair
How It Protects the Hair Shaft The primary function of this protein on the surface of the hair is to act as a shield. The production of this protein occurs within the hair follicle, specifically in the hair bulb, where cells divide and differentiate into the hair shaft we see above the skin.
This elasticity is a direct result of the protein's ability to absorb energy and distribute forces evenly along the hair shaft. Hair keratin is the fundamental protein that forms the structural integrity of each strand, acting as the primary building block that determines strength, resilience, and overall appearance.
The Science of Hair Keratin: How This Protein Shields and Strengthens Your Strands
Targeted protein treatments are designed to temporarily bond to the hair shaft, filling in the gaps left by damaged areas. Addressing Damage and Restoration Chemical processes like coloring, bleaching, and relaxing, as well as frequent heat tool usage, can severely deplete the hair's natural protein levels.
More About What does keratin do for hair
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