Magnesium Ascorbyl Phosphate
AKA “Phospitan C, 113170-55-1, Ascorbyl PM, UNII-0R822556M5, ORISTAR MAP, 0R822556M5, ascorbyl phosphate magnesium, DTXSID00150312, RefChem:55529”
Vitamin
Ingredient Facts
Magnesium ascorbyl phosphate
AKA: Phospitan C, 113170-55-1, Ascorbyl PM, UNII-0R822556M5, ORISTAR MAP, 0R822556M5, Ascorbyl phosphate magnesium, DTXSID00150312, RefChem:55529
Vitamin · Buffering · EWG: 1
Synthetic
Vitamin C
Vitamin
Clean
See also: Hyaluronate sodium; magnesium ascorbyl phosphate (component of).
Formula
C12H12Mg3O18P2
Mol. Weight
579.08
CAS #
114040-31-2, 113170-55-1
Form
Powder
See origin →
Functions
Buffering
Antioxidant Protection
Neutralizes Free Radicals
Traditional Use
This is a modern, proprietary cosmetic ingredient with no established traditional use. It was developed in the 20th century as a conditioning and skin-feel agent for contemporary skincare formulations.
Skin Types
●all-skin-types
Take the Skin ID quiz to see if this matches your skinSupernutrient Firming Facial
Marie Veronique
Gentle Retinol Night Serum
Marie Veronique
C-Therapy Serum
Marie Veronique
Vital Pressed Skincare Powder - Translucent
Credo Beauty
The Vital System: Radiant Skin
Westman Atelier
Vital Pressed Skincare Powder - Crème
Westman Atelier
Vital Pressed Skincare Powder - Pink Bubble
Westman Atelier
Vital Pressed Skincare Powder - Café
Westman Atelier
Vital Pressed Skincare Powder - Dune
Westman Atelier
Final Report on the Safety Assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Magnesium Ascorbyl Phosphate [Vitamin C]
European Commission
EU Cosmetic Ingredient Database (CosIng)
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and
Elmore AR
International journal of toxicology, 2005
Magnesium Ascorbyl Phosphate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR