Is Butyl Stearate Comedogenic?
Comedogenic rating: 3/5 — Can clog pores
Butyl Stearate is an emollient ester that gives products a smooth, silky slip and cushiony feel. In cosmetics it is typically found in moisturizers, foundations, lipsticks, primers and sunscreens.
| Comedogenic rating | 3/5 — Can clog pores |
|---|---|
| Pore-clogging | Likely |
| Fungal-acne safe | No — potential trigger |
| Category | Ester |
Is Butyl Stearate comedogenic?
Butyl Stearate sits in the moderate-to-high range at 3 out of 5. It can clog pores for some people — particularly those who are very acne-prone — but is better tolerated than the worst offenders. If you break out easily, patch-test Butyl Stearate and watch how your skin responds over two to three weeks before using it regularly.
Does Butyl Stearate cause fungal acne?
Separately from pore-clogging, Butyl Stearate is considered a potential fungal-acne (Malassezia) trigger. Fungal acne — properly called Malassezia folliculitis — appears as small, uniform, sometimes itchy bumps, and is fed by certain oils, fatty acids and esters. This is a different problem from comedogenic clogging, so if you are prone to fungal acne you may want to avoid Butyl Stearate even when its comedogenic rating is low.
Should you use Butyl Stearate if you're acne-prone?
If you are acne-prone, it is safest to keep Butyl Stearate away from your face in leave-on products. It can still be useful for dry body skin, hair, or in cleansers where it is quickly rinsed off. Normal and dry skin types often tolerate it without issue.
How Butyl Stearate compares to other esters
| Ingredient | Rating | Pore-clogging |
|---|---|---|
| Butyl Stearate | 3/5 | Likely |
| Caprylic/Capric Triglyceride | 1/5 | Unlikely |
| Decyl Oleate | 3/5 | Likely |
| Ethylhexyl Palmitate | 4/5 | Likely |
| Isocetyl Stearate | 4/5 | Likely |
| Isopropyl Palmitate | 4/5 | Likely |
| Isostearyl Isostearate | 4/5 | Likely |
Frequently asked questions
Is Butyl Stearate comedogenic?
Butyl Stearate sits in the moderate-to-high range at 3 out of 5. It can clog pores for some people — particularly those who are very acne-prone — but is better tolerated than the worst offenders. If you break out easily, patch-test Butyl Stearate and watch how your skin responds over two to three weeks before using it regularly.
Does Butyl Stearate cause fungal acne?
Separately from pore-clogging, Butyl Stearate is considered a potential fungal-acne (Malassezia) trigger. Fungal acne — properly called Malassezia folliculitis — appears as small, uniform, sometimes itchy bumps, and is fed by certain oils, fatty acids and esters. This is a different problem from comedogenic clogging, so if you are prone to fungal acne you may want to avoid Butyl Stearate even when its comedogenic rating is low.
Is Butyl Stearate safe for acne-prone skin?
If you are acne-prone, it is safest to keep Butyl Stearate away from your face in leave-on products. It can still be useful for dry body skin, hair, or in cleansers where it is quickly rinsed off. Normal and dry skin types often tolerate it without issue.
What products is Butyl Stearate found in?
Butyl Stearate is an emollient ester that gives products a smooth, silky slip and cushiony feel, and is commonly found in moisturizers, foundations, lipsticks, primers and sunscreens.
What can I use instead of Butyl Stearate?
Look for non-comedogenic emollients rated 0–1 such as squalane, glycerin, hemp seed oil or sunflower oil.
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