Please Note: Items purchased on SigmaBeauty.com must be returned via shipping carrier only. Returns cannot be hand-delivered to our office. Only items purchased on SigmaBeauty.com will be accepted. Sigma reserves the right to deny a return if the item is deemed as counterfeit. Counterfeit items are not eligible for exchange or refund and will be returned to sender. Sigma accepts returns for gently used products and has the right to deny a return or exchange at any time.