Description: Sodium ascorbyl phosphate (SAP) is specifically produced for use as a stabilized source of vitamin C in cosmetic products. Light-stable and oxygen-stable. Purity >95.0%. Ascorbic acid content at least 45%. White-to off-white powder, mild characteristic odor. Soluble in water (clear solution at 3% concentration), pH 9-10 (3% in water), may discolor at pH levels below 6. 
CAS: 66170-10-3 
INCI Name: Sodium ascorbyl phosphate 
Benefits:
Stabilized form of vitamin C that does not degrade in aqueous formulas. Esterification of asorbic acid protects vitamin C from oxidative degradation.
Potent antioxidant (shown to be able to protect skin from oxidative damages)
Can improve appearance of aged and fragile skin
Widely used as add-on ingredient in skin-lightening products to correct hyperpigmentation and age spots
Antioxidant effect can be increased by adding L-ascorbyl palmitate and/or vitamin E. 
Use: Add at the end of the formulation process just before the preservative, by pre-dissolving in a little distilled water. Usual concentration 0.2-3%, but up to 10%. For external use only. 
Applications: Lotions, creams, sun care & after sun products, makeup products. 
Storage: Fairly stable to air if protected from humidity and heat. The product may be stored for at least 24 months in the unopened original container and at a temperature below 20°C. Keep container tightly closed. 
Country of Origin: UK & China
Raw material source: L-ascorbic acid, sodium, and phosphoryl chloride (or other phosphorylating agents)
Manufacture: Sodium ascorbyl phosphate is produced by direct phosphorylation of ascorbic acid sodium salt where l-ascorbic acid is suspended in an oxygenated, non-hydroxylic solvent together with sodium and then treated with a phosphorylating agent.
Animal Testing: Not animal tested
GMO: GMO free (does not contain plant-derived components)
Vegan: Does not contain animal-derived components