Farouk BioSilk Silk Therapy Lite The classic Silk Therapy formula that you have come to love is now available in a lighter formula. Silk Therapy Lite is an ultra-light leave in reconstructing treatment formulated to give fine and thin hair a miraculously smooth and silky appearance without weighing down the hair or adding excess oil. Strengthening elements of silk give hair strength, resilience and vitality leaving hair manageable and protected. Hair follicle is thickened with extra density Ideal for thin, limp hair