Ci
CI 17200 (Red 33)
CI 17200 · Red 33 · Red 33 Lake
A synthetic red azo dye used as a color additive — present to color the formula, no skin effect.
What it does
CI 17200 is the colorant code for Red 33, a synthetic monoazo dye approved by the FDA as D&C Red No. 33. It is a common red colorant in cosmetics, lip and bath products, and some skincare. In a formula it serves one purpose: visual color. The water-soluble dye form colors the liquid phase; the Lake variant disperses in oil-phase or anhydrous products. It contributes only color — there is no documented skin-care effect.
Also known as
red 33, d&c red no. 33, acid red 33
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
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