Hair That Turns HeadsAlterna Caviar Photo-Age Defense repairs and protects hair from photo degradation. This high performance, leave-in treatment fills in gaps and tears, while smoothing the hair cuticle. It refracts both natural and artificial light to prevent and reverse damaging effects, and restores hair to a healthy, youthful state.Protects hair from UVA And UVB raysReverses the effects of photo degradationNourishes hair back to a healthy condition