Keratin, a protein found in hair, skin, and nails, can be destroyed by various factors.
- Sodium chloride, commonly known as salt, can strip hair of its keratin, causing dryness and irritation to the scalp.
- Radiation, such as that used in laser hair removal, can kill keratin-producing cells in the dermis.
- Microbial activity can break down keratin over time, although fossilization can preserve it for millions of years.
- Chemicals, particularly those used in keratin treatments, can damage hair, especially when applied with excessive heat.
- Sodium Lauryl Sulfate (SLS), a common detergent found in shampoos, can strip keratin from hair, especially after keratin treatments.
While keratin treatments are designed to smooth and strengthen hair, excessive treatments can damage it.
