Are Alcohols Comedogenic? Fatty vs Drying Alcohol Ratings on the 0 to 5 Scale
The word “alcohol” on an ingredient list hides two opposite ingredient families. Fatty alcohols such as cetearyl, cetyl, and stearyl alcohol are waxy emollients that thicken creams and rate a low 2 out of 5. Drying alcohols such as ethanol evaporate fast, strip oils, and can irritate already sensitive, breakout-prone skin. Treating them as one family is one of the most common label-reading mistakes in skincare.
This hub is the site’s central reference for alcohol ingredients and pore clogging: common skincare alcohols rated on the standard 0 to 5 comedogenic scale, split into the two groups that matter, with plain-language guidance on what each rating band means for acne-prone skin. Ratings follow the site’s own pore-clogging ingredients list so they stay consistent across every page. For the full story on the most searched fatty alcohol, read our cetearyl alcohol guide.
What You Will Learn
How the 0 to 5 Rating Scale Works
The comedogenic scale rates how likely a single ingredient is to clog pores, from 0 (will not clog pores) to 5 (highly likely to clog pores). Ratings of 0 to 1 are generally considered low risk, 2 is moderately low, 3 is moderate, and 4 to 5 carry a high risk for acne-prone skin. Our full comedogenic scale guide explains where these numbers come from.
Two caveats matter before you read the tables. First, ratings describe the pure ingredient at high concentration, not your finished product. Second, skin responses vary. Treat ratings as a risk signal for comparing ingredients, not a verdict on any single product. Running the full ingredient list through the free Pore-Clogging Ingredient Checker is always more informative than judging one ingredient alone.
Fatty Alcohols: The Waxy Emollients (Usually Fine)
Fatty alcohols are long-chain waxy substances made from plant or coconut oils. They do not behave like rubbing alcohol: they do not evaporate, sting, or dry your skin. Their job is to thicken creams and soften skin, and they are among the most common ingredients in moisturizers for every skin type.
| Ingredient | Common comedogenic rating | Notes for acne-prone skin |
|---|---|---|
| Cetearyl Alcohol | 2/5 | The most searched fatty alcohol; low risk, thickens creams. Read the full guide. |
| Cetyl Alcohol | 2/5 | Similar profile to cetearyl alcohol; widely used, generally well tolerated. |
| Stearyl Alcohol | 2/5 | Another common cream thickener; low risk at typical formula levels. |
| Behenyl Alcohol | 2/5 | Long-chain fatty alcohol; fine for most acne-prone skin in normal formulas. |
| Lauryl Glucoside | 1/5 | A mild surfactant often grouped with alcohols; very low risk. |
| Behenyl Triglyceride | 0/5 | An emollient ester grouped here; rated 0 in published references. |
Drying and High-Rated Alcohols (Watch These)
This group mixes true drying alcohols with high-rated esters and related ingredients that the reference lists alongside alcohols. The ones rated 4 and 5 are the rows acne-prone skin should actually worry about.
| Ingredient | Common comedogenic rating | Notes for acne-prone skin |
|---|---|---|
| Sodium Lauryl Sulfate | 5/5 | A harsh surfactant, not an alcohol; high irritation risk as well as a 5 rating. Avoid in leave-on products. |
| Hexadecyl Alcohol | 5/5 | Technically another name for cetyl alcohol, yet the reference list rates it 5 while cetyl alcohol rates 2. A naming quirk worth knowing; treat grades from different suppliers with caution. |
| Isocetyl Stearate | 5/5 | An ester, despite the name; one of the highest-risk emollients. Check the top of ingredient lists. |
| Myristyl Myristate | 5/5 | Another high-risk ester that hides in rich creams and lip products. |
| Acetylated Lanolin | 4/5 | A modified lanolin fraction; high risk for acne-prone skin. |
| Acetylated Lanolin Alcohol | 4/5 | Companion to acetylated lanolin; same caution applies. |
| Oleyl Alcohol | 4/5 | An unsaturated fatty alcohol that rates far higher than its saturated cousins. |
| Stearyl Heptanoate | 4/5 | A high-rated ester used for silky feel; watch its position in the list. |
| Cetearyl Octanoate | 3/5 | Moderate risk; an ester, not a fatty alcohol, despite the name. |
One honest note on the table above: several rows are technically esters or surfactants that ingredient references group with alcohols. The ratings are the published numbers; the family label is just how the reference list organizes them. What matters for your skin is the number, not the family name.
What Each Rating Band Means for Your Skin
Rated 0 to 1: the safer bets. Behenyl triglyceride and lauryl glucoside sit here. These are rarely the reason a product breaks you out.
Rated 2: the middle ground. Cetearyl, cetyl, stearyl, and behenyl alcohols all land here. They are the backbone of most moisturizers, and most acne-prone skin handles them fine inside formulated products. If you suspect a cream, look at what else is in the formula before blaming the fatty alcohol: its frequent partner ceteareth-20 (rated 2) or high-rated esters are often the real culprits.
Rated 3 to 5: use with caution. Cetearyl octanoate at 3, oleyl alcohol and the lanolin derivatives at 4, and isocetyl stearate, myristyl myristate, sodium lauryl sulfate, and hexadecyl alcohol at 5 are the rows to flag. Products that list these near the top of the ingredient list deserve a closer look through the checker.
How to Shop for Products Containing Alcohols
Use this short checklist when an alcohol appears on a label:
- Identify the family first. Cetearyl, cetyl, stearyl, and behenyl alcohols are fatty alcohols: usually fine. Ethanol, denatured alcohol (alcohol denat.), and isopropyl alcohol are drying alcohols: potentially irritating, especially for sensitive, breakout-prone skin.
- Do not panic at “cetyl alcohol.” It rates 2 out of 5 and appears in thousands of well-tolerated moisturizers. Judge the whole formula, not one line.
- Scan for the high-rated esters. Isocetyl stearate, myristyl myristate, stearyl heptanoate, and cetearyl octanoate are the genuinely high-risk rows in the alcohol family tables. Their position in the list matters more than their presence.
- Run the full list through the checker. One look at every ingredient with its rating beats guessing about any single alcohol.
Check Any Alcohol in Seconds
Paste a product’s full ingredient list into the free Pore-Clogging Ingredient Checker and see every alcohol and hidden ester flagged with its 0 to 5 rating.
Check Your Ingredients FreeFrequently Asked Questions
This hub is for educational purposes only and does not constitute medical advice. If breakouts persist or worsen, consult a qualified dermatologist.