Appearance: Clear yellowish liquid. Tetrahexyldecyl Ascorbate is highly stable, oil-soluble vitamin C ester. It has excellent skin penetration and offers increased cell protection against UV-B. It can improve appearance of aged and fragile skin. It has been widely used in skin-lightening products to correct hyperpigmentation and age sports. The skin cell viability is increased up to 30% when compared with L-ascorbic acid. In addition, its antioxidant effect can be increased by combining L-ascorbic acid with L-ascorbyl polamitate and or vitamin E. Recommended use level: 1%-10%. Add to oil soluble phase of formula. For external use only. Do not apply directly to skin. Applications: Creams, lotions, sun care products and makeup.. Note: These statements have not been evaluated by the FDA. This product is not to intend to diagnose, treat, cure or prevent any disease. Return Terms: We accept return if the original package is unopened. For returns or exchange of wrong item/s brought, we need to charge 20% of the order to cover our loss on shipment and management. Replacement or refund will be issued after the item is received. We keep doing our best effort to satisfy our customers. If you are satisfied with our product and service, we would appreciate your 5-star positive feedback. Thank you and best regards! L’eternel World