AMMONIUM HYDROXIDE

AMMONIUM HYDROXIDE

Moderate hazard

Is AMMONIUM HYDROXIDE safe in skincare?

Moderate hazardHazard 5/10

EU CosIng Annex III

Based on

  • Reference: European Union, 2026

    Annex III · EU Cosmetics Regulation Annex III, entry 4: permitted only under the listed conditions. Conditions: 6% (as NH3) | Above 2%: Contains ammonia

  • Reference: Cosmetic Ingredient Review Expert Panel

    Safe with limits · CIR report 752 conclusion

  • Reference: Korea MFDS

    Country limits · 3 rules across 3 countries

Is AMMONIUM HYDROXIDE classified as a carcinogen?

Only four bodies count here: IARC, EU CLP, US NTP and California Prop 65.

Not classified by IARC, EU CLP, US NTP, or California Prop 65.

How is AMMONIUM HYDROXIDE regulated?

Cosmetic ingredient

Not found on any prescription-drug, professional-treatment, or US OTC monograph list, so it is treated as a cosmetic ingredient. This is a passive default ("not on any known restricted list"), not an individually verified positive finding.

Products that list this ingredient

24 products in our catalog list this ingredient. Here are the 12 with the most reviews.

Sources (3)

  • Reference: European Union, 2026
  • Reference: Cosmetic Ingredient Review Expert Panel
  • Reference: Korea MFDS

Red does not mean poison. Preservatives that stop a product going off, UV filters and fragrance can land on yellow or red depending on their score.

Green does not mean right for you. Skin and allergies differ from person to person. Treat the color as a starting point.