What effect does keratin treatment have on hair?

Keratin treatments are designed to smooth and strengthen the hair shaft. The primary purpose of these treatments is to infuse the hair with keratin, a natural protein that is a key structural component of hair. By replenishing the keratin in the hair, these treatments can help to repair damage, reduce frizz, and create a sleeker appearance.

When the keratin is applied and heat is used, it seals the hair cuticle, which helps to lock in moisture and create a protective barrier around the hair. This can lead to hair that appears healthier and more manageable over time. Clients often notice a significant difference in the smoothness and shine of their hair after undergoing a keratin treatment.

Looking at the context of hair treatments, darkening the hair color would involve a chemical process unrelated to keratin treatments, which do not inherently affect pigment. Increasing hair volume is also not a direct effect of keratin treatments, as these treatments usually create a smoother, flatter appearance rather than adding volume. Additionally, while improperly administered treatments can lead to damage, the main purpose of keratin treatments is to protect and fortify the hair rather than to make it more prone to damage.