[Skip to content](/content/blogs/ingredients#MainContent/index.html) SearchClear AllClose drawer Close drawer [My Bag\\ (0)](/content/cart/index.html) # Your cart Your cart is currently empty. ## Order Details Subtotal $0.00 Shipping & Taxes Calculated at Checkout Proceed to Checkout Clear AllSearchClose drawer [Sign In](https://account.functionofbeauty.com/) Search [TAKE THE QUIZ](/content/pages/hair-quiz/index.html) Close drawer Subscribe & Save Get 20% off your first subscription Free Shipping on Orders Over $75 Free standard shipping applies to one-off orders over $75 shipping to the United States or Canada. Offer excludes subscription orders and expedited shipping methods. Terms and conditions apply. # Meet the Ingredients in Your Formula How We Function We carefully review every ingredient for safety and performance. Our formulas are science-based and vegan, prioritizing naturally-derived ingredients in optimized dosages based on your hair’s needs. cruelty - free sulfate - free paraben - free 100% Vegan Dermatologist Tested Quality Our innovative approach to beauty is to do more with fewer, targeted, high-performing ingredients, combined to work more effectively together. Efficacy Combining the best from nature + science, we deliver the most efficacious, personalized formula possible for your unique hair, skin, and body needs. Safety Every ingredient meets both US and EU cosmetic regulations, and each of our formulations are reviewed by an expert toxicologist. ### [Acacia Extract](/content/blogs/ingredients/acacia-extract/index.html) [Learn more](/content/blogs/ingredients/acacia-extract/index.html) ### [Acai Oil](/content/blogs/ingredients/acai-oil/index.html) [Learn more](/content/blogs/ingredients/acai-oil/index.html) ### [Acetyl Hexapeptide-1](/content/blogs/ingredients/acetyl-hexapeptide-1/index.html) [Learn more](/content/blogs/ingredients/acetyl-hexapeptide-1/index.html) ### [Acetyl Hexapeptide-8](/content/blogs/ingredients/acetyl-hexapeptide-8/index.html) [Learn more](/content/blogs/ingredients/acetyl-hexapeptide-8/index.html) ### [Agave Extract](/content/blogs/ingredients/agave-extract/index.html) [Learn more](/content/blogs/ingredients/agave-extract/index.html) ### [Allantoin](/content/blogs/ingredients/allantoin/index.html) [Learn more](/content/blogs/ingredients/allantoin/index.html) ### [Amaranthus Leaf Extract](/content/blogs/ingredients/amaranthus-leaf-extract/index.html) [Learn more](/content/blogs/ingredients/amaranthus-leaf-extract/index.html) ### [Annatto Oil](/content/blogs/ingredients/annatto-oil/index.html) [Learn more](/content/blogs/ingredients/annatto-oil/index.html) ### [Apple Extract](/content/blogs/ingredients/apple-extract/index.html) [Learn more](/content/blogs/ingredients/apple-extract/index.html) ### [Argan Oil](/content/blogs/ingredients/argan-oil/index.html) [Learn more](/content/blogs/ingredients/argan-oil/index.html) ### [Arginine](/content/blogs/ingredients/arginine/index.html) [Learn more](/content/blogs/ingredients/arginine/index.html) ### [Argireline Peptide](/content/blogs/ingredients/argireline-peptide/index.html) [Learn more](/content/blogs/ingredients/argireline-peptide/index.html) 1[2](/content/blogs/ingredients?page=2 ""/index.html)[3](/content/blogs/ingredients?page=3 ""/index.html)…[9](/content/blogs/ingredients?page=9 ""/index.html)[→](/content/blogs/ingredients?page=2 ""/index.html) Create Ingredient-Led Beauty Start with our quiz to create your fully custom formulas, crafted with high-performance, precisely-dosed ingredients to match your unique hair needs. 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