Hask Biotin Boost Thickening Dry Shampoo is a lightweight spray made to refresh oily roots and second-day hair while adding a fuller-looking finish. The formula is infused with biotin to support a thicker hair appearance, along with collagen and coffee extract to help revive limp, flat, or fine hair. It absorbs excess oil, sweat, and odor without water, making hair look cleaner and feel fresher between washes. Suitable for fine, thin, flat, oily, or busy lifestyle hair routines, this dry shampoo helps extend hairstyles while giving roots a quick boost of volume and texture.