Ingredient review
Green 5 (CI 61570)
INCI: CI 61570
A safe, widely used synthetic green dye that adds color but offers no skincare benefits.
In plain English
CI 61570, also known as Green 5, is a synthetic dye that gives a green color to cosmetic products. It is approved for use in many countries, including the US and EU, and is generally considered safe for topical use at low concentrations. It does not provide any active skincare benefits—its only job is to make a product look more appealing.
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
Green 5 (CI 61570) 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 Green 5 (CI 61570).
- 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
A synthetic organic compound from the triphenylmethane dye family, specifically used as a colorant in cosmetics and personal care products.
How it works
It works by absorbing and reflecting certain wavelengths of light, which makes the product appear green to the human eye. It does not interact with the skin or alter its function.
Pros
Vibrant and stable color
Provides a consistent green hue that doesn't fade easily in most formulations, ensuring your product looks the same from first use to last.
Low irritation potential
At typical use levels, it rarely causes skin reactions, making it suitable for most people, including those with sensitive skin.
Cons and cautions
No skincare benefit
This ingredient is purely cosmetic—it adds color but does not hydrate, protect, or improve your skin in any way.
Rare allergic reactions
While uncommon, some individuals may experience contact dermatitis or irritation, especially if they have a history of dye allergies.
Best for
- Anyone who wants a green-tinted product for aesthetic reasons
- People looking for a stable, low-irritation colorant
Use caution if
- Individuals with known allergies to synthetic dyes or specific sensitivity to triphenylmethane compounds
Usage tips
Safety summary
CI 61570 is considered safe for use in cosmetics at the low concentrations typically employed. Regulatory bodies like the FDA and the EU Scientific Committee on Consumer Safety have reviewed it and found no significant health risks for topical application. However, as with any colorant, rare allergic reactions are possible.
Research notes
Research on CI 61570 focuses on its safety profile rather than efficacy. Studies indicate low acute toxicity and minimal skin irritation at cosmetic use levels. No evidence suggests it is carcinogenic or harmful when used as intended. Most data come from regulatory safety assessments rather than independent clinical trials.
Common label clues
- Typical concentration
- Typically used at very low concentrations, often less than 1%
- Regulatory status
- Approved for cosmetic use in the US (FDA), EU (as listed in Annex IV), and many other countries, subject to concentration limits and purity requirements.
- Common uses
- Soaps, Shampoos, Bath products, Eye shadows, Lip products
- Environmental note
- As a synthetic dye, it may not be biodegradable and could contribute to water pollution if not properly treated during manufacturing. Some brands are moving toward natural alternatives for eco-conscious consumers.
Good to know
- CI 61570 is also known as D&C Green No. 5 in the US and is approved for use in cosmetics by the FDA.
- It is often used in combination with other colorants to create custom shades.
Common questions
What is Green 5 (CI 61570) in beauty products?
CI 61570, also known as Green 5, is a synthetic dye that gives a green color to cosmetic products. It is approved for use in many countries, including the US and EU, and is generally considered safe for topical use at low concentrations. It does not provide any active skincare benefits—its only job is to make a product look more appealing.
What does Green 5 (CI 61570) do in a beauty product?
It works by absorbing and reflecting certain wavelengths of light, which makes the product appear green to the human eye. It does not interact with the skin or alter its function.
Is Green 5 (CI 61570) safe for most people?
CI 61570 is considered safe for use in cosmetics at the low concentrations typically employed. Regulatory bodies like the FDA and the EU Scientific Committee on Consumer Safety have reviewed it and found no significant health risks for topical application. However, as with any colorant, rare allergic reactions are possible.
Who should be careful with Green 5 (CI 61570)?
Individuals with known allergies to synthetic dyes or specific sensitivity to triphenylmethane compounds
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.