Ingredient review
Acid Red 88
INCI: CI 15620
A synthetic red dye approved for use in cosmetics, but some individuals may experience sensitivity.
In plain English
CI 15620 is a man-made red pigment that gives color to makeup and personal care products. It's one of many color additives regulated by authorities to ensure safety in the tiny amounts used. Think of it like food coloring for your lipstick or blush.
Review score
Safety, usefulness, and evidence
Useful in the right context, but not low-maintenance
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
Read the cautions before using
Acid Red 88 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 Acid Red 88.
- 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 15620 is a synthetic azo dye, specifically a red pigment, used to add color to cosmetic products. It is listed under the Color Index (CI) system, which standardizes colorants globally.
How it works
It works by absorbing and reflecting certain wavelengths of light, making the product appear red. It is typically mixed into the product base during manufacturing to achieve a uniform color.
Pros
Vibrant color
Provides a bright, consistent red hue that stays stable in various product formulations.
Regulated safety
Approved by agencies like the FDA for use in cosmetics, with strict purity and concentration limits.
Cons and cautions
Potential irritation
Can cause contact dermatitis or allergic reactions in sensitive individuals, especially around the eyes or lips.
Synthetic origin
Made from petroleum-derived chemicals, which may be a concern for those preferring natural ingredients.
Best for
- Anyone who enjoys colorful makeup and has no known sensitivity to synthetic dyes
- People looking for affordable, widely available color options
Use caution if
- Individuals with known allergies or sensitivities to azo dyes or synthetic colorants
- Those seeking exclusively natural or organic cosmetics
Usage tips
Safety summary
Generally considered safe for use in cosmetics at low concentrations, but may cause allergic reactions in sensitive individuals. Regulatory bodies set strict purity and usage limits.
Research notes
Studies show low acute toxicity, but some azo dyes can release aromatic amines under certain conditions. Regulatory reviews confirm safety at authorized levels.
Common label clues
- Typical concentration
- Very low, typically less than 1%
- Regulatory status
- Approved for use in cosmetics in the US (as D&C Red No. 36) and EU (as CI 15620) with concentration limits. Not approved for eye-area products in some jurisdictions.
- Common uses
- Lipsticks, Blushes, Nail polishes, Soaps
- Environmental note
- As a synthetic dye, it may not be biodegradable and can accumulate in water systems if not properly filtered during manufacturing.
Good to know
- CI 15620 is also known as D&C Red No. 36 in the US, where it is approved for use in cosmetics and drugs.
- It is not approved for use in products intended for the eye area in some regions.
Common questions
What is Acid Red 88 in beauty products?
CI 15620 is a man-made red pigment that gives color to makeup and personal care products. It's one of many color additives regulated by authorities to ensure safety in the tiny amounts used. Think of it like food coloring for your lipstick or blush.
What does Acid Red 88 do in a beauty product?
It works by absorbing and reflecting certain wavelengths of light, making the product appear red. It is typically mixed into the product base during manufacturing to achieve a uniform color.
Is Acid Red 88 safe for most people?
Generally considered safe for use in cosmetics at low concentrations, but may cause allergic reactions in sensitive individuals. Regulatory bodies set strict purity and usage limits.
Who should be careful with Acid Red 88?
Individuals with known allergies or sensitivities to azo dyes or synthetic colorants Those seeking exclusively natural or organic cosmetics
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.