Magnesium Ascorbyl Phosphate (Vitamin C)
AKA “Vitamin C”
Vitamin C
Ingredient Facts
Magnesium ascorbyl phosphate (Vitamin C)
Vitamin C · Antioxidant · EWG: 4
Plant-Derived Synthetic
Antioxidant
Skin Conditioner
Vitamin C
Not Clean
Magnesium Ascorbyl Phosphate [Vitamin C] is a cosmetic ingredient used as antioxidant, skin conditioning.
CAS #
114040-31-2 --- 113170-55-1
See origin →
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Anti-Inflammatory
Fights Acne
Softens and smooths skin
Fights free radical damage
Traditional Use
Vitamin C was isolated in 1932. Magnesium ascorbyl phosphate is a stable derivative developed in the 1990s as a more shelf-stable alternative to pure L-ascorbic acid for anti-aging and brightening skincare.
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Vitamin C (Ascorbic Acid).
Abdullah M, Jamil RT, Attia FN
, 2026
Vitamin C (Ascorbic Acid).
Abdullah M, Jamil RT, Attia FN
, 2026
Topical Vitamin C and the Skin: Mechanisms of Action and ...
Firas Al-Niaimi, Nicole Yi Zhen Chiang
The Journal of clinical and aesthetic dermatology, 2017
Topical Vitamin C in Dermatology
Al-Niaimi F, Chiang NYZ
Journal of Clinical and Aesthetic Dermatology, 2017
Topical Vitamin C and the Skin: Mechanisms of Action and Clinical Applications.
Al-Niaimi F, Chiang NYZ
The Journal of clinical and aesthetic dermatology, 2017
Ascorbic Acid (Vitamin C) as a Cosmeceutical to Increase ...
Yong Chool Boo
Antioxidants (Basel, Switzerland), 2022
Ascorbic Acid (Vitamin C) as a Cosmeceutical to Increase ...
Yong Chool Boo
Antioxidants (Basel, Switzerland), 2022
Ascorbic Acid (Vitamin C) as a Cosmeceutical to Increase Dermal Collagen for Skin Antiaging Purposes: Emerging Combination Therapies.
Boo YC
Antioxidants (Basel, Switzerland), 2022
The role of Bromelain and Liposomal Vitamin C in the trea...
Giacomo Buso, Paolo Santini, Francesca Ghirardini, Francesca Cannavacciuolo, Adriana Visonà, Beniamino Zalunardo + 2 more
VASA. Zeitschrift fur Gefasskrankheiten, 2025
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
Ascorbic Acid (Vitamin C)
European Commission
EU Cosmetic Ingredient Database (CosIng)
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
Ascorbic Acid (Vitamin C)
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Magnesium Ascorbyl Phosphate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
[Vitamin C and its derivatives in maintaining the good skin condition].
Goik U
Postepy biochemii, 2024
Vitamin C-squalene bioconjugate promotes epidermal thicke...
R Gref, C Deloménie, A Maksimenko, E Gouadon, G Percoco, E Lati + 3 more
Scientific reports, 2020
Vanillic acid and vitamin C attenuated di-2-ethylhexyl ph...
B Ogunlade, S C Gbotolorun, O A Adedotun, K Iteire, J Adejayi
Reproduction & fertility, 2022
Roles of Vitamin C in Skin Health
Pullar JM, Carr AC, Vissers MCM
Nutrients, 2017
Verified Jun 2026
Data: CosIng · EWG · CIR