Skincity is the authorized dealer for all brands. Warranties on goods supplied by the manufacture. Skincity provides no additional guarantees beyond the manufacturer's specified. If you feel unsure of the guarantee or the instructions included with your product, please contact them prior to use so they can help you. All products have an ingredient description. Note that for some brands the description is not fully complete and only show the main ingredients. Skincity can not take responsibility for any hypersensitivity to ingredients in a product or sample, if you are unsure of what a product or sample contains, please contact their customer service before the order.