Red 27 (CI 45410)
A red cosmetic colorant. It tints the formula; some people may react on contact.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Moderate
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
CI 45410, known as Red 27, is a synthetic cosmetic dye from the xanthene group (INCI: CI 45410). It gives the formula deep red and pink shades. It shows up mostly in lipsticks, blushes, nail polishes and color makeup. On efficacy, this is a functional decorative component, not a skincare active. It provides color and does not act on skin physiology. Its role is purely cosmetic, so do not expect any barrier or hydration benefit from it. For topical use, systemic exposure is low and it can be used during pregnancy and breastfeeding. General tolerance is good and irritation potential is low, but allergy risk is medium: people already sensitized to dyes may get a contact reaction, especially on the lips. Most people have no trouble with it. If you notice stinging or redness after a deeply red product, it is worth reviewing the formula.
Frequently asked questions
Is Red 27 (CI 45410) safe during pregnancy?
Red 27 (CI 45410) is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Red 27 (CI 45410) for?
Red 27 (CI 45410) suits: normal, dry, combination, oily, sensitive.
What is Red 27 (CI 45410) and what does it do in cosmetics?
A red cosmetic colorant.
What's the INCI name for Red 27 (CI 45410)?
The INCI name is CI 45410. It may also appear as: Red 27.
See Red 27 (CI 45410) in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
Other functional ingredients
Yellow 11 (CI 47000), CI 60730, CI 61565 (Green 6), CI 61570, Hydroxystearic Acid, PEG/PPG-20/15 Dimethicone, Sodium Carbonate, Xanthan Gum
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