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Function Of was founded on the premise that there is no such thing as a one-size-fits-all product and that each person deserves one that is made especially for them, based on their objectives, skin types, hair, and preferences. They just made the decision to create it because they are scientists, info nerds, rule breakers, and engineers at heart. The birth of Function Of. They begin with carefully selected ingredients that have been chosen for their performance and safety. The structure, goals, and preferences of your hair and skin are then incorporated into the design of each individual formula. Vegan, cruelty-free, and subjected to stringent testing by dermatologists and hair stylists, all of their formulas are available. In their cutting-edge facility in the United States, they custom-make all of their products. To reduce transportation costs, they prioritize US-based local sourcing. To cut down on waste and packaging that isn't needed, they constantly improve their process.