Ingredient review
Cyclododecyl Acetate
INCI: CYCLODODECYL ACETATE
A synthetic scent ingredient that provides a fresh, woody aroma but may cause irritation for sensitive skin.
In plain English
Cyclododecyl Acetate is a man-made chemical used to give products a pleasant, clean, woody scent. It belongs to a family of fragrance ingredients that are designed to smell good and help mask any unpleasant base odors from other ingredients. While it's generally considered safe in the tiny amounts used in cosmetics, it can be a potential irritant for people with very sensitive or reactive skin.
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
Cyclododecyl Acetate 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 Cyclododecyl Acetate.
- 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
Cyclododecyl Acetate is a synthetic ester, created in a lab by combining cyclododecanol with acetic acid. It is a clear, colorless liquid with a characteristic fresh, woody, and slightly floral odor. It is used exclusively as a fragrance ingredient in cosmetics and personal care products.
How it works
In a cosmetic product, Cyclododecyl Acetate does not provide any skincare benefit like moisturizing or exfoliating. Its sole purpose is to contribute to the product's overall scent profile. It evaporates from the skin, carrying its aromatic molecules to your nose. It can also act as a fixative, helping other, more volatile fragrance notes last longer on the skin.
Pros
Pleasant Scent Profile
Provides a clean, woody, and slightly floral aroma that is widely considered appealing and non-offensive in many cosmetic formulations.
Scent Stability
As a synthetic ingredient, it offers a consistent and stable scent that doesn't vary from batch to batch like natural essential oils can.
Cons and cautions
Potential Irritant
Like many fragrance ingredients, it can be a contact allergen or irritant, potentially causing redness, itching, or breakouts in sensitive individuals.
No Skincare Benefit
This ingredient serves only to add scent. It does not hydrate, protect, or improve the skin's health in any way.
Best for
- People who enjoy scented skincare and do not have a history of fragrance sensitivity.
- Those looking for a consistent, stable scent profile in their products.
Use caution if
- Individuals with known fragrance allergies, sensitive skin, or conditions like eczema or rosacea.
- Anyone following a 'fragrance-free' skincare routine.
Usage tips
Safety summary
Cyclododecyl Acetate is considered safe for use in cosmetics at the low concentrations typically employed. Its primary safety concern is its potential to cause allergic contact dermatitis in a subset of the population. Regulatory bodies like IFRA provide guidelines to minimize this risk.
Research notes
Research primarily focuses on its potential as a contact allergen. It is included in fragrance allergen lists by the EU and is monitored by the Research Institute for Fragrance Materials (RIFM). Studies confirm its low acute toxicity but highlight its sensitizing potential.
Common label clues
- Typical concentration
- Typically used at very low levels, often below 1% in leave-on products.
- Regulatory status
- Approved for use in cosmetics in the US (by the FDA under the umbrella of 'fragrance') and in the EU (listed as a fragrance allergen that must be declared above certain concentrations).
- Common uses
- Fragranced skincare, Body care, Hair care, Perfumes
- Environmental note
- As a synthetic compound, its environmental persistence is a consideration, but it is used in very small quantities in personal care products.
Good to know
- Cyclododecyl Acetate is often part of a complex 'fragrance' or 'parfum' blend, so it may not be listed individually on a product label.
- The International Fragrance Association (IFRA) sets safety standards for the use of this ingredient in cosmetics.
Common questions
What is Cyclododecyl Acetate in beauty products?
Cyclododecyl Acetate is a man-made chemical used to give products a pleasant, clean, woody scent. It belongs to a family of fragrance ingredients that are designed to smell good and help mask any unpleasant base odors from other ingredients. While it's generally considered safe in the tiny amounts used in cosmetics, it can be a potential irritant for people with very sensitive or reactive skin.
What does Cyclododecyl Acetate do in a beauty product?
In a cosmetic product, Cyclododecyl Acetate does not provide any skincare benefit like moisturizing or exfoliating. Its sole purpose is to contribute to the product's overall scent profile. It evaporates from the skin, carrying its aromatic molecules to your nose. It can also act as a fixative, helping other, more volatile fragrance notes last longer on the skin.
Is Cyclododecyl Acetate safe for most people?
Cyclododecyl Acetate is considered safe for use in cosmetics at the low concentrations typically employed. Its primary safety concern is its potential to cause allergic contact dermatitis in a subset of the population. Regulatory bodies like IFRA provide guidelines to minimize this risk.
Who should be careful with Cyclododecyl Acetate?
Individuals with known fragrance allergies, sensitive skin, or conditions like eczema or rosacea. Anyone following a 'fragrance-free' skincare routine.
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.