ANTIOX-C? Magnesium Ascorbyl Phosphate (MAP) Powder HIGH ALTITUDE ESSENTIALS? ANTIOX-C? Magnesium Ascorbyl Phosphate (MAP) powder is a water-soluble, generally non-irritating, stable derivative of Vitamin C. It has the same potential as vitamin C to boost skin collagen synthesis but is effective in significantly lower concentrations, and can be used at concentrations as low as 10% to suppress melanin formation in formulations for evening out skin tone. It is also important to note that Magnesuim Ascorbyl Phosphate may be a better choice than other forms of Vitamin C for people with sensitive skin and those wishing to avoid any exfoliating effects since many Vitamin C formulas are highly acidic (and therefore produce exfoliating effects). In skin care products, Magnesium Ascorbyl Phosphate (MAP) is skin texture repair, collagen production and evening out skin tone. Magnesium Ascorbyl Phosphate is a potent anti-oxidant that can protect skin from oxidation and helps fight pollutants on skin, thus improving the appearance of aging and damaged skin and restoring natural glow and attractiveness. Those with sensitive skin may need to be aware of Vitamin C?s acidic and exfoliating effects. Specification: 99%-100% Suggested use: 3 to 5% Appearance: White-yellowish powder, mild odor Solubility: Water - warm to hot water (40-50C (104-122F), stirring frequently. Stability: suggested pH: may discolor in pH 6, best when used in emulsion based products at pH between 5.5-7. pH value: 7.0-8.5. Storage: Store in cool, and dry place. Keep away from direct strong light and heat. Shelf Life: BEST IF USED WITHIN ONE YEAR Manufacturer's data: Magnesium Ascorbyl Phosphate (MAP)