Science
Mechanism of Action
This synthetic compound operates as a colorant, absorbing ultraviolet light to produce a distinct dark bluish-red (maroon) coloration within formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The compound presents a noted risk of dust explosion during handling, indicating its particulate nature and potential for airborne dispersal.
The Formula
Formulation
Stability
Maintains stability under standard storage conditions. Discoloration may occur upon exposure to strong acids, strong bases, or oxidizing agents. A risk of dust explosion is also present.
Conflicts
- strong acids
- strong bases
- oxidizing agents
Safety
Safety Profile
Classified by the FDA as D&C Red No. 34, its use is strictly limited to external applications in drugs and cosmetics. The SCCNFP (a predecessor to SCCS) previously noted a lack of submission for evaluation in hair dye products. Significant concerns are raised by the EWG, citing potential for developmental and reproductive toxicity, including harm to the unborn child and suspected damage to fertility. Further reported risks include adverse effects on the cardiovascular system, immune system, skin, and kidneys. The EPA also indicates a high risk to human health, leading to its 'RESTRICTED' classification by EWG.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to significant safety concerns raised by multiple agencies, including potential developmental and reproductive harm and risks to various organ systems, this ingredient is strongly advised against for use in skincare formulations.
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References
Sources