The Sephora Collection Strengthening Hair Serum leaves hair dense and thick. In as little as two months of use, hair is denser and thicker and hair fiber is strengthened and more resistant. This formula is enriched with biotin to improve support hair and plant-based proteins to help nourish hair, making it an ideal ally for achieving dense and thick hair. Its leave-in formula is particularly pleasant to use and does not leave a greasy film on hair.
When you see our Clean + Planet Positive seal, this brand's products are formulating without certain ingredients that are potentially harmful to human health and environment. They also address ingredients clients are concerned about, including phthalates, formaldehyde or formaldehyde releasers, oxybenzone and octinoxate, hydroquinone, triclosan, coal tar, methylisothiazolinone and methylchloroisothiazolinone, insoluble plastic microbeads, and more: For the full list, check out the Ingredients tab.
A hair serum that is enriched with biotin and plant-based proteins to nourish and strengthen hair.