Ingredient review

Annatto

INCI: CI 75120

A gentle, plant-derived colorant that adds warm tones to makeup and skincare without common irritation.

beautyskincarecolorant

In plain English

Annatto is a natural pigment from the seeds of a tropical tree. It gives a yellow, orange, or reddish color to products like lipstick, blush, and soap. It's a popular alternative to synthetic dyes for people who prefer natural ingredients.

Review score

Safety, usefulness, and evidence

4.0Good
4.0/ 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
natural
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Useful, but context matters

Annatto 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 Annatto.
  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 natural colorant extracted from the seeds of the Bixa orellana tree, also known as the achiote or lipstick tree. The main coloring compounds are bixin and norbixin, which are carotenoids.

How it works

In cosmetics, annatto is added during formulation to impart color. It disperses evenly in oil-based or water-based products depending on the form used (oil-soluble bixin or water-soluble norbixin). It does not actively treat the skin but provides visual appeal.

Pros

Natural origin

Derived from achiote seeds, annatto is a renewable plant-based colorant that appeals to clean beauty enthusiasts.

Low irritation potential

Annatto rarely causes skin reactions, making it a safer choice for sensitive skin compared to some synthetic dyes.

Cons and cautions

Staining risk

Annatto can leave temporary orange stains on skin or clothing if the product is not well-formulated or if used in high concentrations.

Light sensitivity

The color may fade or shift when exposed to sunlight over time, which can affect product shelf life and appearance.

Best for

  • Anyone seeking natural colorants in makeup
  • People with sensitive skin who react to synthetic dyes

Use caution if

  • Individuals with known allergy to Bixa orellana (rare)

Usage tips

Store products containing annatto away from direct sunlight to preserve color.
If using a DIY formulation, start with a low concentration and test on a small batch to avoid overpowering color.

Safety summary

Annatto is considered safe for cosmetic use with a very low risk of irritation or allergy. The Cosmetic Ingredient Review (CIR) panel has not raised concerns, and it is widely accepted in natural and conventional products.

Research notes

Studies on annatto focus mainly on its use as a food colorant. In cosmetics, evidence is limited to its coloring properties and low allergenicity. No significant safety issues have been reported in peer-reviewed literature.

Common label clues

Typical concentration
0.1% to 2% depending on desired shade
Regulatory status
Approved as a color additive in cosmetics in the EU, US (FDA), and many other regions. In the US, it is listed as exempt from certification (21 CFR 73.2030).
Common uses
Lipsticks, Blushes, Eyeshadows, Soaps, Lotions
Environmental note
Annatto is biodegradable and derived from a renewable crop. However, large-scale cultivation may involve deforestation or pesticide use depending on farming practices.

Good to know

  • Annatto is also used as a food coloring (E160b) in cheeses, butter, and snacks.
  • The same seeds are used in traditional body paint by indigenous peoples in Central and South America.

Common questions

What is Annatto in beauty products?

Annatto is a natural pigment from the seeds of a tropical tree. It gives a yellow, orange, or reddish color to products like lipstick, blush, and soap. It's a popular alternative to synthetic dyes for people who prefer natural ingredients.

What does Annatto do in a beauty product?

In cosmetics, annatto is added during formulation to impart color. It disperses evenly in oil-based or water-based products depending on the form used (oil-soluble bixin or water-soluble norbixin). It does not actively treat the skin but provides visual appeal.

Is Annatto safe for most people?

Annatto is considered safe for cosmetic use with a very low risk of irritation or allergy. The Cosmetic Ingredient Review (CIR) panel has not raised concerns, and it is widely accepted in natural and conventional products.

Who should be careful with Annatto?

Individuals with known allergy to Bixa orellana (rare)

Research sources

FDA Color Additive Status ListOpenCosmetic Ingredient Review (CIR) Safety AssessmentOpenPubMed - Annatto allergenicity studyOpen

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.