Ingredient review
Citral Glycol Cyclic Acetal
INCI: CITRAL ETHYLENEGLYCOL CYCLIC ACETAL
A synthetic citrus scent that can cause irritation in sensitive individuals, but is generally considered safe at low concentrations.
In plain English
This is a man-made ingredient that smells like lemon or citrus. It's added to products to give them a fresh, pleasant scent. Because it's a fragrance chemical, it can sometimes cause skin reactions in people with sensitive skin or allergies, but for most people it's fine in small amounts.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Citral Glycol Cyclic Acetal can be useful, but watch for some irritation potential.
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 Citral Glycol Cyclic Acetal.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
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 acetal compound derived from citral (a natural citrus aldehyde) and ethylene glycol, used as a fragrance ingredient in cosmetics.
How it works
It provides a fresh, citrus-like aroma that enhances the sensory experience of a product. As a fragrance ingredient, it does not provide any skincare benefits like moisturizing or anti-aging.
Pros
Stable citrus scent
Unlike natural citrus oils, this synthetic acetal is more stable and less likely to oxidize or cause discoloration in products.
Low usage levels
Only a tiny amount is needed to create a noticeable scent, which helps keep the overall formula gentle for most skin types.
Cons and cautions
Potential irritant
Even at low levels, this ingredient can cause redness, itching, or stinging in people with sensitive or reactive skin.
No skincare benefit
It adds only fragrance and does not moisturize, protect, or improve the skin in any way.
Best for
- People who enjoy citrus-scented products and have no known fragrance allergies
- Those looking for a stable synthetic alternative to natural citrus oils
Use caution if
- Individuals with sensitive skin or known fragrance allergies
- Anyone with a history of contact dermatitis from citrus or fragrance ingredients
Usage tips
Safety summary
Generally recognized as safe at low concentrations by major regulatory bodies, but can cause skin irritation or allergic reactions in sensitive individuals. The EU requires it to be listed on the label as a potential allergen when present above 0.001% in leave-on products.
Research notes
Studies show that citral and its derivatives can cause contact dermatitis in some people, but the acetal form is generally less reactive than free citral. Most safety data comes from fragrance industry assessments and regulatory reviews.
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 EU, US, and many other regions, but must be listed on the label when present above certain thresholds due to allergen labeling requirements.
- Common uses
- Fragranced lotions, Perfumes, Cleansers, Body washes
- Environmental note
- As a synthetic compound, it is not biodegradable in all conditions and may persist in the environment, though it is used in very small amounts.
Good to know
- This ingredient is often used as a replacement for natural citrus oils because it is less likely to cause phototoxic reactions.
- It may appear on labels simply as 'fragrance' or 'parfum' rather than by its full INCI name.
Common questions
What is Citral Glycol Cyclic Acetal in beauty products?
This is a man-made ingredient that smells like lemon or citrus. It's added to products to give them a fresh, pleasant scent. Because it's a fragrance chemical, it can sometimes cause skin reactions in people with sensitive skin or allergies, but for most people it's fine in small amounts.
What does Citral Glycol Cyclic Acetal do in a beauty product?
It provides a fresh, citrus-like aroma that enhances the sensory experience of a product. As a fragrance ingredient, it does not provide any skincare benefits like moisturizing or anti-aging.
Is Citral Glycol Cyclic Acetal safe for most people?
Generally recognized as safe at low concentrations by major regulatory bodies, but can cause skin irritation or allergic reactions in sensitive individuals. The EU requires it to be listed on the label as a potential allergen when present above 0.001% in leave-on products.
Who should be careful with Citral Glycol Cyclic Acetal?
Individuals with sensitive skin or known fragrance allergies Anyone with a history of contact dermatitis from citrus or fragrance ingredients
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.