Ingredient
CI 52015
CI 52015 is flagged for pregnancy. The concern behind the strongest flag is common allergen and absorbed into the body.
- Acid Red 155
- Solvent Red 43
Verdict by profile
Truva checks every ingredient against six profiles. Jump to any of them for the full assessment.
- Strongest verdict
- Caution Advised
- Its verdict for pregnancy, the profile this one is worst in
- Profiles flagged
- 1 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 2 of 5
- Higher means more likely to sting or redden
CI 52015 and pregnancy
Caution Advised
- Common allergen
- Absorbed into the body
CI 52015 is a synthetic azo dye used as a red colorant in cosmetics. While it is permitted in the EU and US for cosmetic use, pregnancy-specific safety data for topical application is very limited. As with many azo dyes, there are theoretical concerns about absorption and metabolite formation. The primary concern during pregnancy relates to the limited safety data specific to gestational exposure. Some azo dyes can be absorbed through skin to varying degrees, and their metabolites could theoretically enter systemic circulation. While there's no specific evidence of harm from cosmetic use of CI 52015 during pregnancy, the lack of comprehensive pregnancy studies combined with the general precautionary approach to azo dyes suggests caution. Neither ACOG nor FDA provides specific guidance on CI 52015 during pregnancy. Given the limited data and availability of better-studied alternative colorants, many healthcare providers recommend choosing cosmetics with more extensively researched colorants during pregnancy. If you choose to use products with this dye, ensure they're from reputable manufacturers following EU or US purity standards.
CI 52015 and breastfeeding
Safe to Use
- Common allergen
CI 52015 in cosmetics poses low risk during breastfeeding. While comprehensive breastfeeding-specific studies are lacking, the minimal dermal absorption typical of most cosmetic colorants when applied to intact skin makes significant systemic distribution and milk transfer unlikely. The primary consideration is allergic potential rather than toxicity to the infant. If you have no history of reactions to cosmetic dyes and your skin tolerates the product well, occasional cosmetic use is unlikely to pose risks. However, avoid applying products containing this colorant directly to the breast area. For breastfeeding women, if you're using products with CI 52015 without issues, continuation is reasonable. If you prefer colorants with more extensive safety data during lactation, consider products using iron oxides or other better-studied alternatives.
CI 52015 and postpartum
Safe to Use
- Common allergen
- Irritant
For postpartum women not breastfeeding, CI 52015 carries the same low to moderate risk as for the general population. This colorant is approved for cosmetic use, though it's less extensively studied than some other dyes. The main considerations are individual skin sensitivity and potential for irritation. Postpartum hormonal changes can sometimes make skin more reactive, so if you're trying new products with this colorant, monitor for any signs of allergic reaction or irritation. If your skin tolerates it well, there's no specific postpartum reason to avoid it.
CI 52015 and trying to conceive
Safe to Use
CI 52015 poses no known fertility concerns for women trying to conceive. There is no evidence that topical cosmetic use of this colorant affects reproductive function, hormone levels, or conception. While you may want to transition to products with better-studied ingredients once you confirm pregnancy, during the TTC period this colorant can be used without specific fertility concerns. The limited data is primarily about pregnancy safety, not preconception effects. Focus your ingredient scrutiny on known endocrine disruptors rather than cosmetic colorants.
CI 52015 and PCOS
Safe to Use
CI 52015 has no known interaction with PCOS or hormonal function. This synthetic colorant serves purely as a dye and does not affect androgen levels, insulin sensitivity, or other endocrine aspects of PCOS. Women with PCOS can use products containing this colorant without concern for hormonal effects. The only consideration would be if you have generally sensitive skin (which some women with PCOS experience) that might react to synthetic dyes, in which case you might prefer colorant-free products. For women with PCOS, this ingredient is essentially neutral—it won't help or harm PCOS-related concerns. Focus on the overall product formulation and whether it addresses your specific skin needs rather than this particular colorant.
CI 52015 and general use
Safe to Use
- Common allergen
- Irritant
CI 52015 (Acid Red 155) is a synthetic azo dye approved for use as a colorant in cosmetics by regulatory authorities in the EU and US. It provides red coloring in cosmetic products, though it is less commonly used than some other red colorants. As with other azo dyes, the primary concern is potential for allergic contact dermatitis in sensitive individuals. People with known sensitivities to azo dyes or a history of reactions to cosmetic colorants should be cautious. The allergenicity rate appears to be relatively low based on available data, though comprehensive studies are more limited compared to widely used colorants. For most people, CI 52015 in cosmetics is well-tolerated when used in products from reputable manufacturers that comply with EU or US purity standards. If you have sensitive skin or a history of dye reactions, patch test products before full use. The relatively limited safety literature compared to other colorants is worth noting—if you prefer ingredients with more extensive research, consider products using iron oxides or other well-studied alternatives.
Everything else flagged for the same profiles
Related ingredients
Ingredients suggested in place of CI 52015, each one with its own page here.
Ingredients that raise the same concerns.
Where this came from
Truva summarises published guidance from bodies including ACOG, the FDA, the EU SCCS and the Cosmetic Ingredient Review. It has no access to your medical history and it is not a substitute for your doctor, dermatologist or midwife. These assessments have not been reviewed by a clinician, and nothing here is a diagnosis or a prescription. If you are pregnant, breastfeeding or being treated for PCOS, take the ingredient list to the person looking after you.
Assessment last pulled from the ingredient database on .
One ingredient is the easy case.
A label has thirty of them. Truva reads the whole list at once and answers for the profile you set: pregnancy, breastfeeding, postpartum, trying to conceive, PCOS, or general use.
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