BASIC RED 51

BASIC RED 51

Moderate hazard

Is BASIC RED 51 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 269: permitted only under the listed conditions. Conditions: (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidatie hair dye products | (b) 1,0 % | (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0,5 % | (a) To be printed on the label: The mixing ratio. “ Hair colorant

  • Reference: Korea MFDS

    MFDS Korea: restricted · MFDS Korea cosmetic restricted

Is BASIC RED 51 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 BASIC RED 51 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

Sources (2)

  • Reference: European Union, 2026
  • 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.