Alterna Ten Perfect Blend Masque, 5.1 oz. DetailsThe Science of TEN, the perfect fusion of ten key elements that transform hair from ordinary to extraordinary. After cleansing hair, remove excess water and apply to clean, damp hair. Leave on for 3 minutes. Rinse well. For best results, use 1-2 times per week. 5.1 oz./ 150 mL Designer Pure. Proven. Professional: About Alterna Haircare: A pioneer in luxury hair products, Alterna launched in 1997. Since then, Alterna has gained renown for its na...