A Brazilian hair treatment uses hair extensions sifted for their looks and lifespan. For this reason, it predominantly depends on human hair since this kind of hair blends with the natural hair and is indistinguishable, and also because it is more conducive to chemical and heat treatment processes compared to synthetic hair. Human hair is classified on many bases, of which its nativity is the prime consideration, and a Brazilian hair treatment again focuses mostly on hair of Brazilian genesis. Any human hair strand is made of layers, of which the outer-most is the cuticle. The cuticle is made of overlapping cells, which lock in moisture and impart luster to the hair. While Remy Brazilian hair has all the cuticles intact and pointing in the same direction, even non-Remy Brazilian hair does have some balance cuticles. The primary aim of a successful Brazilian hair treatment is to cause as little damage to the cuticle as possible. Since cuticles pointing in different directions can cause the hair to become tangled, a Brazilian hair treatment also focuses on keeping them pointing in the same direction as much as possible. Even the best of Brazilian hair treatments do fade over time and the hair starts to lose its shine and gloss. At such times, to prolong the life of the Brazilian hair treatment, stylists often resort to a silicon treatment. This method provides only temporary relief and causes long-term damage to the hair extensions, but is handy for prolonging their lifespan.