What it is: A hair serum that helps repair and seal broken ends while protecting against future fraying.What it does: With its ultranourishing damage-fighter, Virtue has finally cracked the code to put an end to split ends. Chock-full of their patented Alpha Keratin 60ku™ protein, the Split End Serum mends and seals frayed, brittle ends on contact, restoring hair to its pre-damaged state. How to use: Using your fingertips, apply a quarter-sized amount to clean, damp or dry hair from mid-shaft to ends. Style as usual. Paraben-free; phthalate-free; sulfate-free; synthetic color-free; gluten-free Cruelty-free Made in the USA