Ingredient review
CI 12010
INCI: CI 12010
A common synthetic red dye that adds color to makeup but offers no skincare benefits.
In plain English
CI 12010 is a man-made red pigment used to give color to cosmetics like lipstick and blush. It doesn't treat or improve your skin—it's purely for appearance. In most people, it's safe and unlikely to cause irritation, but those with very sensitive skin or allergies may want to patch-test first.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
CI 12010 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging CI 12010.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
CI 12010 is a synthetic azo dye, specifically a red pigment approved for use in cosmetics in many regions. It is also known as Acid Red 88 or D&C Red No. 36.
How it works
It works by absorbing and reflecting certain wavelengths of light, creating a visible red color in the product. It is mixed into the formula during manufacturing and stays on the surface of the skin or nail.
Pros
Vibrant color payoff
Delivers a strong, consistent red shade that stays true in various lighting conditions.
Cost-effective
Synthetic dyes like CI 12010 are inexpensive to produce, keeping makeup affordable for consumers.
Cons and cautions
No skin benefit
This ingredient is purely cosmetic and does not hydrate, protect, or improve skin health.
Potential allergen
A small percentage of people may experience contact dermatitis or allergic reactions, especially with repeated use.
Best for
- Anyone looking for colorful makeup options
- People without known sensitivities to synthetic dyes
Use caution if
- Individuals with known allergies to azo dyes or sensitive skin prone to reactions
Usage tips
Safety summary
Generally recognized as safe for cosmetic use at typical concentrations. Rare allergic reactions have been reported. Regulatory bodies set limits to ensure consumer safety.
Research notes
Studies confirm low acute toxicity and low skin irritation potential in most individuals. Some research indicates a small risk of allergic contact dermatitis in sensitive populations.
Common label clues
- Typical concentration
- Typically used at very low concentrations, often below 1%
- Regulatory status
- Approved for use in cosmetics in the EU, US (as D&C Red No. 36), and many other regions, with concentration limits in some product categories.
- Common uses
- Lipsticks, Blushes, Eye shadows, Nail polishes
- Environmental note
- As a synthetic dye, it is not biodegradable and may accumulate in water systems if not properly filtered during manufacturing.
Good to know
- CI 12010 is often listed under different names depending on the region—check the INCI list on the product label.
- It is not approved for use in eye-area products in some countries due to stricter regulations.
Common questions
What is CI 12010 in beauty products?
CI 12010 is a man-made red pigment used to give color to cosmetics like lipstick and blush. It doesn't treat or improve your skin—it's purely for appearance. In most people, it's safe and unlikely to cause irritation, but those with very sensitive skin or allergies may want to patch-test first.
What does CI 12010 do in a beauty product?
It works by absorbing and reflecting certain wavelengths of light, creating a visible red color in the product. It is mixed into the formula during manufacturing and stays on the surface of the skin or nail.
Is CI 12010 safe for most people?
Generally recognized as safe for cosmetic use at typical concentrations. Rare allergic reactions have been reported. Regulatory bodies set limits to ensure consumer safety.
Who should be careful with CI 12010?
Individuals with known allergies to azo dyes or sensitive skin prone to reactions
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.