Color Laboratories warrants this product against defects in material or workmanship. If found defective, return product to your local retailer before its warranty period expires. Thereafter, and for one year from the purchase date, return defective products to Color Laboratories for replacement (your exclusive remedy). Proof of purchase is required. Warranty does not cover empty, refilled, misused or tampered with products. This warranty is valid only in the United States. For additional warranty terms visit www.colorlaboratories.com.