When used correctly, hair glosses are unlikely to cause damage to your hair. 'Make sure to set a timer and thoroughly shampoo after.' Can Hair Gloss Damage Your Hair? “If doing so, just remember to apply to clean and even sections of the hair starting from the roots to the ends,' Casanova advises.
But don’t worry–that’s actually a good thing, especially if you’re in the mood to try out a new shade.
This just means that the glosses will fade out of your hair over time. However, if accessing a salon is impossible or prohibitively expensive, she recommends brands like dpHUE that have a range of hair glosses designed to be used at home and don’t contain peroxide or ammonia.