Daily grooming activities like styling or combing alongside colouration, hair perms, straightening and thermal treatments, and even exposure to environmental aggressors like UV and pollution can lead to the degradation of hair’s structure and mechanical properties. Whether it is via mechanical or chemical means or a combination of both, the hair fibre will get damaged and become weak, dull, brittle, and more susceptible to breakage over time.1 Hair damage occurs globally and affects all hair types regardless of ethnicity, but does it mean the effects are the same?
Hair is something that we all have or at least had at one time or another. Its basic structures are essentially the same across different ethnicities. Hair fibre is composed of protein, 91%, of which is approximately 50% keratin, and can be divided in two parts: the cuticles and cortex. The cortex is the thickest part and the primary source of hair strength, elasticity, and resilience. It consists of a com