Ingredient Encyclopedia

Magnesium Ascorbyl Phosphate (MAP) is a salt-based, water-soluble derivative of Vitamin C. In the hierarchy of skin brighteners, it is known as the "Steady State" option. While pure Vitamin C (L-Ascorbic Acid) is notorious for being unstable and irritating due to its high acidity, MAP remains stable at a neutral pH (around 6 to 7). Once absorbed, the skin’s enzymes convert MAP into L-Ascorbic Acid. Because this conversion happens within the skin rather than on the surface, you get the antioxidant and brightening benefits without the stinging, redness, or "metallic" smell associated with traditional Vitamin C serums.