By Phia

Living Proof was founded in 2005 in Cambridge, Massachusetts, when MIT scientists led by Dr. Bob Langer teamed up with stylists to build haircare on science. It develops formulas in its own labs and says it holds more than 120 global patents, behind No Frizz, Full and Perfect Hair Day.

Living Proof shopping guide

Everything you need to know to get the best deal at Living Proof

How to redeem a Living Proof promo code

  1. 1. Add your selected items to your shopping bag at Living Proof.
  2. 2. Open your bag and continue to checkout.
  3. 3. Find the field labeled Promo Code or Gift Card, then enter your code and apply it.

Troubleshooting a Living Proof promo code

  1. • Check for typos — codes are case-sensitive and can’t contain extra spaces.
  2. • Confirm the code hasn’t expired or reached its usage limit.
  3. • Some codes require a minimum spend or exclude sale items.

Expert ways to save at Living Proof

  1. • Use the most valuable code when a retailer does not allow code stacking.
  2. • Check current sale items before applying your code.
  3. • Install Phia to automatically test available codes at checkout.

Stop overpaying at Living Proof

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