Citric Acid
INCI: Citric Acid · CAS: 77-92-9
AHA most often used to adjust formula pH and chelate metals, with mild exfoliating action at higher concentrations. Can sting on broken or very sensitive skin.
ComedogenicDescribes any ingredient, cosmetic, or skincare product that tends to clog pores. Scored 0 (non-comedogenic) to 5 (highly likely to clog pores).
-
IrritancyRefers to the state or quality of being irritating, provoking annoyance, or causing physical discomfort. Scored 0 (well tolerated) to 5 (likely to irritate sensitive skin).
2 / 5
EWGThe Environmental Working Group operates the EWG Skin Deep® Cosmetics Database, which evaluates the safety of tens of thousands of personal care products. Scored 0–10 based on hazard level: 0–2 low hazard, 3–6 moderate, 7–10 high.
2 / 10
Functions
ph-adjuster, chelator
Functions in a formula
- ph-adjuster
- chelator
- exfoliant
Suitable for skin types
- Normal
- Oily
- Combination
This page is continuously reviewed. Last updated 7/1/2026.
Informational only - not medical advice. See methodology.