Ingredient glossary
Sodium Ascorbyl Phosphate
INCI: Sodium Ascorbyl Phosphate · Also: SAP, Sodium L-Ascorbyl-2-Phosphate, APS
Worth paying for
Does Sodium Ascorbyl Phosphate clash with what you already use? Check it →Strong results with strong evidence behind them. This is one genuinely worth having in a formula.
What it does
- brightening
- antioxidant
- anti acne
strong evidenceMultiple randomized and open label trials at one to five percent show reduced inflammatory acne and some pigment improvement with good tolerability.
On a label: usually effective at 1-5%.
Who it's for, and who should skip it
Tends to suit
- oily
- acne prone
- combo
- 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
Plays well with
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Educational information about a cosmetic ingredient, not medical advice.