Function of Beauty’s custom leave-in treatment for wavy hair is formulated with babassu oil for lightweight wave definition and glossy shine. Indulge our most popular nude (p)each fragrance.

Function of Beauty customizable hair care is suitable for sensitive skin and derm tested. We believe in clean and conscious care - that’s why our custom wavy hair leave-in treatment is 97% naturally-derived, sulfate-free, paraben-free, cruelty-free, and 100% vegan. Packaging contains recycled content - Our bottles are made with 50% recycled plastic & are 100% recyclable.

HOW IT WORKS: Customize your own leave-in treatment according to your unique #hairgoals by adding up to 3 Function of Beauty #HairGoal Booster Shots into your wavy hair leave-in treatment base.

TO MIX IN #HAIRGOALS: snap open each #HairGoal Booster Shot and pour up to 3 into your base formulation. Shake vigorously for 15 seconds before your first use, and get ready for compliments!

For best results, use with Function of Beauty Wavy Hair Collection. Treat your hair like it's one of a kind (because it is) with Function of Beauty custom shampoo, conditioner, mask, leave-in conditioner, and #HairGoal Booster Shots. Each sold separately.