Ingredient review
Isoamyl Allylglycolate
INCI: ISOAMYL ALLYLGLYCOLATE
A synthetic fragrance compound that adds a fresh, green scent to products, but may cause sensitivity in those with fragrance allergies.
In plain English
Isoamyl Allylglycolate is a man-made ingredient used solely to add a pleasant, fresh, green, or floral smell to beauty products. It doesn't moisturize, cleanse, or treat the skin—it's just there for the scent. Because it's a fragrance ingredient, it can sometimes cause irritation or allergic reactions in people with sensitive skin or fragrance sensitivities.
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
Isoamyl Allylglycolate 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 Isoamyl Allylglycolate.
- 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 ester compound used as a fragrance ingredient in cosmetics and personal care products. It is not found naturally but is designed to mimic fresh, green, or floral notes.
How it works
It works by evaporating from the skin or hair, releasing scent molecules that interact with olfactory receptors. It has no functional benefit for skin or hair health.
Pros
Pleasant scent
Adds a fresh, green, or floral note that can make the product more enjoyable to use.
Low irritation risk for most
At typical low concentrations, it is generally non-irritating for people without fragrance sensitivities.
Cons and cautions
No skin benefit
This ingredient only provides scent and does not hydrate, protect, or improve skin or hair.
Potential allergen
Like many fragrance ingredients, it can cause contact dermatitis or allergic reactions in sensitive individuals.
Best for
- People who enjoy scented products and do not have fragrance allergies
- Those looking for a fresh, green scent in their routine
Use caution if
- Individuals with known fragrance allergies or sensitive, reactive skin
Usage tips
Safety summary
Generally recognized as safe for use in cosmetics at low concentrations. However, it is a known allergen for some individuals, and those with fragrance sensitivities should exercise caution.
Research notes
Research primarily focuses on its role as a contact allergen. It is listed in fragrance allergen databases and is subject to labeling regulations in the EU. No significant studies indicate toxicity at cosmetic use levels.
Common label clues
- Typical concentration
- Typically used at very low levels, often less than 1% in leave-on products.
- Regulatory status
- Approved for use in cosmetics in the US and EU. In the EU, it must be listed on the label if present above 0.01% in leave-on products or 0.001% in rinse-off products due to allergen potential.
- Common uses
- Perfumes, Body lotions, Cleansers, Hair care
- Environmental note
- As a synthetic compound, its environmental impact depends on production methods and biodegradability. Limited data is publicly available.
Good to know
- Fragrance ingredients are often listed simply as 'fragrance' or 'parfum' on labels, but some brands disclose individual components like Isoamyl Allylglycolate.
- This ingredient is regulated as a fragrance allergen in the EU and must be listed on the label if present above certain levels.
Common questions
What is Isoamyl Allylglycolate in beauty products?
Isoamyl Allylglycolate is a man-made ingredient used solely to add a pleasant, fresh, green, or floral smell to beauty products. It doesn't moisturize, cleanse, or treat the skin—it's just there for the scent. Because it's a fragrance ingredient, it can sometimes cause irritation or allergic reactions in people with sensitive skin or fragrance sensitivities.
What does Isoamyl Allylglycolate do in a beauty product?
It works by evaporating from the skin or hair, releasing scent molecules that interact with olfactory receptors. It has no functional benefit for skin or hair health.
Is Isoamyl Allylglycolate safe for most people?
Generally recognized as safe for use in cosmetics at low concentrations. However, it is a known allergen for some individuals, and those with fragrance sensitivities should exercise caution.
Who should be careful with Isoamyl Allylglycolate?
Individuals with known fragrance allergies or sensitive, reactive skin
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.