Magnesium Ascorbyl Phosphate

Magnesium Ascorbyl Phosphate (MAP) is a stable, water-soluble derivative of Vitamin C.
It is less irritating and more stable than L-ascorbic acid, making it ideal for sensitive-skin products.

🔹 Key Skin Benefits

1. Brightening
Inhibits tyrosinase → reduces hyperpigmentation
Helps fade dark spots & uneven skin tone
Supports a brighter complexion

2. Antioxidant Protection
Neutralizes free radicals
Helps protect against environmental damage (pollution, UV-induced stress)

3. Collagen Boosting
Converts to active L-ascorbic acid in the skin
Encourages collagen synthesis
Helps with firmness and reducing fine lines

4. Hydrating & Gentle
Less irritating compared to pure Vitamin C
Suitable for sensitive and acne-prone skin

🔹 Ideal Usage in Formulations

Recommended Use Level
0.2 – 10%, depending on desired efficacy
Most commercial formulations use 3–5%

Solubility
Water-soluble (up to ~15% in water)
Performs best in pH 6–7

pH Requirements
Stable at pH 6–7
Avoid low pH (<5) formulas (it degrades)

Compatibility

Compatible with:

• Niacinamide
• Hyaluronic acid
• Panthenol
• Peptides
• Ferulic acid (within pH limits)
• Avoid combining with:
• AHA/BHA formulas (too acidic)

🔹 Formulation Tips

Dissolve MAP in the water phase
Use chelating agents (EDTA) to improve stability
Use airless packaging to protect from oxidation
Include antioxidants for longer shelf life

🔹 Product Types

Works well in:

• Brightening serums
• Moisturizers
• Lotions
• Eye creams
• Toners