Ingredient review

Disperse Red 17

INCI: Disperse Red 17

Disperse Red 17 is a synthetic dye that adds red tones to cosmetics but may cause skin irritation or allergic reactions in sensitive individuals.

beautyskincarecolorant

In plain English

Disperse Red 17 is a man-made colorant that gives a red or pink shade to products like hair dye, nail polish, and lipstick. It belongs to a group of dyes called azo dyes, which are common in cosmetics but can sometimes trigger skin irritation or allergies, especially on sensitive or damaged skin.

Review score

Safety, usefulness, and evidence

2.8Fair
2.8/ 5

Useful in the right context, but not low-maintenance

The evidence base is useful, but some claims depend heavily on the formula.

Main practical flags: irritation is moderate; clogging risk is low.

Source
synthetic
Evidence
moderate
Irritation
moderate
Clogging risk
low
How reviews are scored

Quick decision guide

Read the cautions before using

Disperse Red 17 can be useful, but watch for some irritation potential.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Disperse Red 17.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. 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

moderate

Can bother some users, especially with frequent use, damaged skin, or strong companion ingredients.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

Disperse Red 17 is a synthetic azo dye (a type of colorant made from petroleum-based chemicals) that is used to impart a red color to cosmetic formulations. It is listed under the INCI name Disperse Red 17 and is also known as CI 11210.

How it works

In a cosmetic product, Disperse Red 17 works by absorbing and reflecting specific wavelengths of light, which makes the product appear red or pink. It is dispersed evenly throughout the formula to provide consistent color. It does not have any active skincare function beyond coloring.

Pros

Vibrant color payoff

Provides a strong, consistent red shade that is stable in many cosmetic formulas, making it a reliable choice for coloring products like lipsticks and nail polishes.

Widely available and cost-effective

As a common synthetic dye, it is inexpensive and easy for manufacturers to source, which helps keep product costs down for consumers.

Cons and cautions

Potential skin irritation

Disperse Red 17 is known to cause skin irritation or allergic contact dermatitis in some people, especially those with sensitive skin or a history of reactions to hair dyes.

Synthetic and not eco-friendly

Being a petroleum-derived azo dye, it is not biodegradable and may raise environmental concerns, particularly when washed down the drain.

Best for

  • People who want bright red/pink color in their cosmetics
  • Those without a history of sensitivity to synthetic dyes

Use caution if

  • Individuals with known allergies or sensitivities to azo dyes or synthetic colorants
  • Those with very sensitive or compromised skin

Usage tips

If you have sensitive skin, do a patch test on a small area before using a product containing Disperse Red 17, especially hair dyes.
Avoid using products with this dye on broken or irritated skin to reduce the risk of a reaction.
Check the ingredient list if you have known allergies to azo dyes (often listed as CI numbers).

Safety summary

Disperse Red 17 is generally considered safe for most people when used in low concentrations in rinse-off products like hair dye. However, it has a moderate risk of causing skin irritation or allergic reactions, particularly in individuals with sensitive skin or a history of dye allergies. Patch testing is recommended.

Research notes

Research indicates that Disperse Red 17 can act as a contact allergen, with studies showing positive patch test reactions in some individuals, especially those with hair dye allergies. It is less commonly studied than other disperse dyes, but existing evidence supports its potential for sensitization.

Common label clues

Typical concentration
Typically used at very low levels, often below 1%
Regulatory status
In the US, Disperse Red 17 is not approved for use in cosmetics intended for the eye area (e.g., eye shadows) but is allowed in other products like hair dyes and nail polishes. In the EU, it is permitted with restrictions and must be listed on the label. Regulations vary by country.
Common uses
Hair color, Nail polish, Lip products, Soap
Environmental note
As a synthetic azo dye, Disperse Red 17 is not readily biodegradable and may persist in water systems. Its environmental impact is a concern, though it is used in small amounts in cosmetics.

Good to know

  • Disperse Red 17 is often used in temporary or semi-permanent hair colors.
  • It is regulated as a color additive in cosmetics by authorities like the FDA and EU, but its use is restricted in some regions due to allergy concerns.

Common questions

What is Disperse Red 17 in beauty products?

Disperse Red 17 is a man-made colorant that gives a red or pink shade to products like hair dye, nail polish, and lipstick. It belongs to a group of dyes called azo dyes, which are common in cosmetics but can sometimes trigger skin irritation or allergies, especially on sensitive or damaged skin.

What does Disperse Red 17 do in a beauty product?

In a cosmetic product, Disperse Red 17 works by absorbing and reflecting specific wavelengths of light, which makes the product appear red or pink. It is dispersed evenly throughout the formula to provide consistent color. It does not have any active skincare function beyond coloring.

Is Disperse Red 17 safe for most people?

Disperse Red 17 is generally considered safe for most people when used in low concentrations in rinse-off products like hair dye. However, it has a moderate risk of causing skin irritation or allergic reactions, particularly in individuals with sensitive skin or a history of dye allergies. Patch testing is recommended.

Who should be careful with Disperse Red 17?

Individuals with known allergies or sensitivities to azo dyes or synthetic colorants Those with very sensitive or compromised skin

Research sources

European Chemicals Agency (ECHA) - Disperse Red 17OpenPubMed - Contact allergy to disperse dyesOpenFDA - Color Additive Status ListOpen

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.