The hair structure consists of the stratum corneum, cortex and medulla. The outermost layer is the "cuticle". The cuticles help to prevent damage to the cortex. Cuticle remained with inner moisture and nutrition locked. Once the cuticle is damaged, the hair becomes very weak.
For now, most manufacturers exercise acid bath for hair to remove cuticles and make the final products more silky touch. This operation actually does huge harm on the hair that becomes thinner and easily broken. Besides, the acid residue will impose potential threat on human’s health.
In our factory , Acid treatment is replaced with gentle process to protect the original hair structure.Therefore, the finished products are in more healthier and natural look and can last for 3 years by locking the nutrition and moisture inside.