Ingredient review
Glyceryl Ethylhexanoate Dimethoxycinnamate
INCI: GLYCERYL ETHYLHEXANOATE DIMETHOXYCINNAMATE
A synthetic UV filter that helps protect skin from sunburn and long-term sun damage, but it's less common in modern formulations due to availability of newer filters.
In plain English
This ingredient is a type of sunscreen chemical that works by absorbing UV rays before they can harm your skin. It's similar to other cinnamate-based filters (like octinoxate) but is attached to a larger molecule to make it more stable and less likely to penetrate the skin. You'll find it in some sunscreens and daily SPF products, though it's not as widely used today as newer filters.
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
Glyceryl Ethylhexanoate Dimethoxycinnamate 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 Glyceryl Ethylhexanoate Dimethoxycinnamate.
- 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 that functions as a UV-B filter. It is an ester of glyceryl ethylhexanoate and dimethoxycinnamic acid, designed to absorb ultraviolet light in the 290–320 nm range (UVB).
How it works
When applied to the skin, the molecule absorbs UV-B photons and converts them into harmless heat energy, preventing the radiation from reaching deeper skin layers and causing damage like sunburn or DNA mutations.
Pros
Effective UVB protection
Absorbs UVB rays efficiently, helping prevent sunburn and reducing the risk of skin cancer when used as part of a complete sunscreen.
Low irritation potential
Generally well-tolerated by most skin types, including sensitive skin, with a low risk of stinging or redness compared to some other chemical filters.
Cons and cautions
Limited UVA coverage
This ingredient does not protect against UVA rays, which contribute to premature aging and skin cancer, so it must be paired with other filters for broad-spectrum protection.
Environmental concerns
Cinnamate-based UV filters have been detected in water sources and may harm marine life, particularly coral reefs, leading to restrictions in some regions.
Best for
- People looking for a sunscreen ingredient with a low irritation profile
- Those who prefer synthetic UV filters over mineral sunscreens
Use caution if
- Individuals with known sensitivity to cinnamate-based sunscreens (rare)
Usage tips
Safety summary
Generally considered safe for topical use at approved concentrations. Low irritation and allergy risk, but limited UVA protection means it should be combined with other filters. Environmental concerns exist for aquatic ecosystems.
Research notes
Studies confirm its effectiveness as a UVB filter with good photostability. Research on systemic absorption is limited, but its larger molecular size suggests minimal skin penetration. Environmental impact studies show potential harm to marine life.
Common label clues
- Typical concentration
- Up to 10% in leave-on products, depending on regional regulations
- Regulatory status
- Approved for use in sunscreens in many countries, including the US and EU, at concentrations up to 10%. However, some regions have restricted or banned certain cinnamate filters due to environmental concerns.
- Common uses
- Sunscreens, Daily moisturizers with SPF, Tinted sunscreens
- Environmental note
- Cinnamate-based UV filters have been detected in marine environments and may contribute to coral bleaching. Some regions, like Hawaii and Palau, have banned sunscreens containing certain cinnamates to protect reefs.
Good to know
- This ingredient is not as common in newer sunscreens because many brands have shifted to filters with better safety and environmental profiles.
- Check the ingredient list if you have a known sensitivity to cinnamates, though reactions are rare.
Common questions
What is Glyceryl Ethylhexanoate Dimethoxycinnamate in beauty products?
This ingredient is a type of sunscreen chemical that works by absorbing UV rays before they can harm your skin. It's similar to other cinnamate-based filters (like octinoxate) but is attached to a larger molecule to make it more stable and less likely to penetrate the skin. You'll find it in some sunscreens and daily SPF products, though it's not as widely used today as newer filters.
What does Glyceryl Ethylhexanoate Dimethoxycinnamate do in a beauty product?
When applied to the skin, the molecule absorbs UV-B photons and converts them into harmless heat energy, preventing the radiation from reaching deeper skin layers and causing damage like sunburn or DNA mutations.
Is Glyceryl Ethylhexanoate Dimethoxycinnamate safe for most people?
Generally considered safe for topical use at approved concentrations. Low irritation and allergy risk, but limited UVA protection means it should be combined with other filters. Environmental concerns exist for aquatic ecosystems.
Who should be careful with Glyceryl Ethylhexanoate Dimethoxycinnamate?
Individuals with known sensitivity to cinnamate-based sunscreens (rare)
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.