Ingredient glossary
Magnesium Ascorbyl Phosphate
On your shelf ✓What Magnesium Ascorbyl Phosphate does for your skin, who it suits, and what to watch for.
INCI: Magnesium Ascorbyl Phosphate · Also: MAP, L-Ascorbic Acid Magnesium Phosphate
In short: Magnesium Ascorbyl Phosphate delivers brightening and antioxidant, suits most skin types, and the evidence behind it is moderate. One thing to know: needs the right pH to work.
- What it does
- Brightening, antioxidant
- Best for
- Most skin types
- Watch out
- Needs the right pH to work
- Evidence
- Moderate
The molecule
The Glow take
Genuinely worth a spot in your routine.
When your goal is fading dark spots and evening out tone, Magnesium Ascorbyl Phosphate pulls genuine weight, with a solid amount of evidence behind it. It only performs at the right pH, so it is worth buying from brands that get the formulation details right.
— Maya
What it does
- brightening
- antioxidant
moderate evidenceClinical trials using five percent in combination with nicotinamide and hyaluronic acid show melasma improvement but isolate data for monotherapy remain limited.
On a label: usually effective at 3-10%.
Who it's for, and who should skip it
Tends to suit
- normal
- combo
- oily
- pigmentation
- sensitive
Approach with care
No specific group flagged to avoid it.
- Clogs poresLow
- Irritation riskLow
- pH-dependentIts effect depends on the product's pH
How it fits each skin type
- DrySuits
- CombinationSuits
- OilySuits
- SensitiveSuits
Often chosen for pigmentation.
Where it fits in your routine
Plays well with
- niacinamide
- hyaluronic acid
- sunscreens
Magnesium Ascorbyl Phosphate, answered
Is Magnesium Ascorbyl Phosphate safe during pregnancy?
Yes. Magnesium Ascorbyl Phosphate is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.
Who should avoid Magnesium Ascorbyl Phosphate?
No specific group is flagged to avoid Magnesium Ascorbyl Phosphate. It is well tolerated by most skin. Still, introduce anything new one product at a time.
What concentration of Magnesium Ascorbyl Phosphate actually works?
Magnesium Ascorbyl Phosphate tends to do its job in the 3 to 10% range. Much lower and it is likely underdosed.
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