New & Improved Frizz-Free Sleek No Damaging Sulfates or Heavy Silicones Island Silk For a sleek, smooth style, take a permanent vacation from the harsh sulfates and heavy silicones in ordinary shampoos. Instead, discover Alba Botanica So Smooth Gardenia Shampoo, a veritable silk infusion of gentle botanical cleansers and calming extracts. Gardenia extract and soy protein gently nourish the hair cuticle so even unruly hair becomes beautifully sleek and polished but never flat. Destination smooth.