Science
Mechanism of Action
On a molecular level, PIGMENT RED 5 functions by absorbing specific wavelengths of light and reflecting red, thereby imparting a distinct reddish coloration to cosmetic matrices and the skin surface. Its chemical structure demonstrates stability within various carrier mediums, facilitating consistent color delivery.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an organic pigment, PIGMENT RED 5 is susceptible to photocatalytic degradation, particularly from UV light, which can lead to the formation of potentially carcinogenic aromatic amines. Its stability is also influenced by heat, metallic ions, and microbial factors.
Safety
Safety Profile
PIGMENT RED 5 is a synthetic azo dye with a 'safe with restrictions' status from CIR. It is a restricted cosmetic ingredient in Europe (EC 1223/2009, Annex IV), with its use in hair coloring products specifically prohibited due to concerns about photocatalytic degradation forming carcinogenic aromatic amines. While not a GHS hazard, it carries a high potential for skin burning and irritation, necessitating a patch test prior to widespread application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PIGMENT RED 5 functions as a cosmetic colorant, but its significant potential for skin irritation and susceptibility to degradation into potentially carcinogenic compounds necessitates rigorous formulation control and careful consideration, rendering it generally questionable for precision skincare applications.
Related
Similar Ingredients
Finding similar ingredients…