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Meet the customizable hair care brand with over 21,000 5-star reviews!

The future of hair care is here.

At Function of Beauty, we don’t just make hair care, we make 100% fully customizable hair care based on your unique hair type, hair goals, AND aesthetic preferences. With the potential to create over 54 trillion formulations, we can guarantee your personalized shampoo and conditioner will be every bit as unique as you!


  • All of our formulas are created in-house by our team of world-class MIT engineers, chemists, and data scientists. 
  • Each product is individually formulated to work specifically for your unique hair type + hair goals so you see better results.


  • Our products are all formulated with only the highest quality of safe, natural ingredients.
  • Your safety and happiness are our top priority, which is why our products are all 100% sulfate- and paraben-free, vegan, and cruelty-free! 

Insta-Worthy Design

  • Become the designer of your own bottles by choosing your formula’s color + fragrance.
  • There are over eight Instagram-worthy colors to choose from (we even let you mix + match!).

As Unique As You

  • You choose the name of your unique formula & we’ll print it right on the bottle.  
  • Select your hair goals to give your hair exactly what it needs to look its best.
  • There are over 54 trillion different formulations, but there’s only one Function of YOU!


  • Because our customized formulas work better for your hair, you’ll find that you won’t need to use as much, which means your formula should last longer. 
  • On average, Function of Beauty costs less than $1 per wash.
  • With over 21,000+ five-star reviews you can’t go wrong!

Are you ready to experience the Function of Beauty difference? Find your perfect hair care formula now by taking the free hair quiz. And don’t worry—if you’re not 100% satisfied with your products, our Happy Hair Specialists are on standby to help adjust your formula free of charge, or issue you a full refund, so there’s absolutely no risk in trying!