Sun-In is a product which when sprayed on hair and exposed to natural sunlight, encourages highlights. It works by bleaching the outer most pigment layer and the effects are permanent.

Sun-In works best on blonde hair - brightening the hair and adding "whiter" streaks when applied in concentrated areas. However, it can be used on light-to-medium brown hair - but not dark hair (it makes the hair go a horrible orange colour!)

The same effect can be achieved with lemon juice but Sun-In products contain a cocktail of aloe, marigold, chamomile and flaxseed. This helps condition the hair as the process of bleaching can cause hair to become brittle and dried-out. These ingredients also help remove impurities from the hair, improving the overall colour and shine.