Ingredient review

Pigment Blue 15:1

INCI: CI 74160

A widely used synthetic blue pigment that provides vibrant color with a strong safety record in cosmetics.

beautyskincarecolorant

In plain English

Pigment Blue 15:1 is a man-made blue colorant that gives makeup and nail products their vivid blue shades. It is a type of phthalocyanine pigment, known for being very stable and long-lasting. In cosmetics, it is considered safe for external use and rarely causes irritation.

Review score

Safety, usefulness, and evidence

3.5Good
3.5/ 5

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
How reviews are scored

Quick decision guide

Useful, but context matters

Pigment Blue 15:1 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Pigment Blue 15:1.
  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

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

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

A synthetic organic pigment from the phthalocyanine family, specifically a copper complex that produces a bright, intense blue color. It is insoluble in water and most solvents, making it ideal for use in color cosmetics.

How it works

It works by reflecting blue light and absorbing other wavelengths, creating a visible blue color. In cosmetic formulations, it is finely milled and dispersed evenly to provide uniform color coverage without dissolving or fading easily.

Pros

Vibrant and stable color

Pigment Blue 15:1 delivers a rich, true blue that resists fading from light or heat, so your makeup stays bright throughout the day.

Low irritation potential

This pigment is generally well-tolerated by most skin types, including sensitive skin, making it a safer choice for colorful cosmetics.

Cons and cautions

Can cause staining

Because it is a strong pigment, it may temporarily stain skin or clothing if not properly removed or if the product is not well-formulated.

Limited to external use

This colorant is not approved for use on lips or near mucous membranes in all regions, so check product labels for intended use.

Best for

  • Anyone looking for long-lasting, vibrant blue color in eye makeup or nail products
  • People with sensitive skin who want a low-irritation colorant option

Use caution if

  • Individuals with known allergies to phthalocyanine compounds (rare)

Usage tips

Use an oil-based makeup remover or micellar water to fully remove blue pigments and avoid staining.
Patch test on a small area of skin before using a new product containing this pigment, especially if you have sensitive skin.

Safety summary

Pigment Blue 15:1 has a strong safety profile in cosmetics, with low irritation and sensitization potential. It is considered safe for external use when formulated within recommended concentrations.

Research notes

Studies and regulatory reviews confirm the safety of this pigment for cosmetic use, with no significant toxicity or carcinogenicity concerns at typical exposure levels.

Common label clues

Typical concentration
Typically 0.1% to 5% depending on desired shade intensity
Regulatory status
Approved for use in cosmetics in the US (FDA), EU, and many other countries, with restrictions on use in products for mucous membranes.
Common uses
Eyeshadows, Eyeliners, Nail polishes, Lip products
Environmental note
As a synthetic pigment, it is not biodegradable and may persist in the environment if disposed of improperly. However, it is not known to bioaccumulate significantly.

Good to know

  • Pigment Blue 15:1 is also used in artists' paints and industrial coatings due to its excellent stability.
  • In the EU, it is listed as CI 74160 and is approved for use in cosmetics with specific purity requirements.

Common questions

What is Pigment Blue 15:1 in beauty products?

Pigment Blue 15:1 is a man-made blue colorant that gives makeup and nail products their vivid blue shades. It is a type of phthalocyanine pigment, known for being very stable and long-lasting. In cosmetics, it is considered safe for external use and rarely causes irritation.

What does Pigment Blue 15:1 do in a beauty product?

It works by reflecting blue light and absorbing other wavelengths, creating a visible blue color. In cosmetic formulations, it is finely milled and dispersed evenly to provide uniform color coverage without dissolving or fading easily.

Is Pigment Blue 15:1 safe for most people?

Pigment Blue 15:1 has a strong safety profile in cosmetics, with low irritation and sensitization potential. It is considered safe for external use when formulated within recommended concentrations.

Who should be careful with Pigment Blue 15:1?

Individuals with known allergies to phthalocyanine compounds (rare)

Research sources

Cosmetic Ingredient Review (CIR) - Safety Assessment of Pigment Blue 15OpenFDA 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.