What Role Do Keratin Capsules Play?
Keratin capsules are an essential attribute of hot hair extensions. While the hot technique involves the use of a protein or polymer fixative, keratin acts as the first one. In particular, it is an artificial analog of the natural component, therefore, unlike polymer capsules, it’s harmless as much as possible. In addition, keratin capsules are easier to remove and don’t require too high melting temperatures.