✨BRAND NEW UNOPENED BOX✨ A nourishing, ultra-concentrated hair mask, deeply nourishes & strengthens very dry hair, fine to medium. Formulated with plant-based proteins and niacinamide, this luxurious formula provides +89% conditioning**, making the hair easy to comb and detangle, as well as +96% stronger hair** and +79% shine*. *vs. unwashed hair **vs. non conditioning shampoo How to Use Apply on lengths & ends after cleansing hair with Bain Satin or Bain Satin Riche. Apply to washed and towel-dried hair. Massage lengths and ends. Leave on for 3 to 5 minutes. Rinse thoroughly.