CI 15585

D&C Red No. 9
Poor
Red Flag
Pores
3/5
Irritancy
0/5
FA Safe
❌ No
Pregnancy
✅ Safe
Vegan
✅ Yes

Science & Benefits

CI 15585 is a barium salt pigment known for its deep red hue. Its risk profile stems from its physical particle characteristics; the barium salt structure is particularly prone to becoming physically lodged in the follicular opening. Once lodged, it acts as a physical irritant, triggering the skin's defense mechanism which involves producing more sebum to 'flush' the pore. This paradoxical reaction—adding more oil to a blocked pore—is a recipe for whiteheads. Clinical rabbit ear assays (the gold standard for comedogenicity) consistently flag this specific pigment as a reliable trigger for follicular blockages.

Safety Alerts

🍄

Fungal Acne: This ingredient is a lipid/ester that can feed Malassezia yeast. Avoid if you have active FA bumps.