*While supplies last. Get a free 20ml deluxe sample of Nº.9 Bond Profector Nourishing Serum with the purchase of Nº.4D Clean Volume Detox Dry Shampoo. Use code BARRYS9 at checkout and hit “refresh” when prompted to add items to cart. Code limited to one use per customer. Code is not transferable. Offer valid on olaplex.com only for orders shipping to the US only. We reserve the right to substitute the free item with an item of equal or greater value. Applicable purchase threshold does not include Shipping and Handling, Taxes and is not applicable to the purchase of Olaplex Online eGift Cards. Offer cannot be applied to prior purchases. Only authorized orders will be processed and shipped. Olaplex reserves the right to cancel any order due to unauthorized, altered, or ineligible use of offers and to modify or cancel promotions due to system error or unforeseen problems. Other restrictions may apply.