Sesame oil has a comedogenic rating of 3 on a scale of 0 to 5, placing it in the “moderate likelihood” category for clogging pores. That makes it a risky choice for acne-prone or oily skin, though not the worst offender among common oils. Whether it causes breakouts for you depends on your skin type, where you apply it, and how much you use.
What the Comedogenic Scale Means
The comedogenic scale ranks oils and butters from 0 (won’t clog pores at all) to 5 (high likelihood of clogging pores). At a 3, sesame oil sits right in the middle. For comparison, jojoba oil scores a 2 (moderately low likelihood), while coconut oil scores a 4 (fairly high likelihood). Oils rated 0 or 1, like argan oil and hemp seed oil, are generally considered safe for acne-prone skin.
A rating of 3 doesn’t guarantee breakouts. The original comedogenic testing was done on rabbit ears, which are more sensitive than human skin, so real-world results vary. But if you’re prone to clogged pores or hormonal acne, a moderately comedogenic oil applied to the face is more likely to cause problems than one rated 1 or 2.
Why Sesame Oil Can Clog Pores
Sesame oil’s fatty acid profile explains its moderate comedogenic rating. It contains an average of about 44% linoleic acid and 39% oleic acid. Linoleic acid is lighter and generally well tolerated by acne-prone skin. Oleic acid is heavier and tends to sit on top of the skin rather than absorbing quickly, which can trap debris and sebum inside pores.
That roughly even split between the two fatty acids is why sesame oil lands in the middle of the comedogenic scale. Oils that are much higher in oleic acid, like coconut oil, tend to score higher. Oils dominated by linoleic acid, like grapeseed oil, typically score lower. Sesame oil doesn’t lean strongly in either direction, so it behaves like a moderate-risk oil for most people.
Skin Benefits Beyond Comedogenicity
Sesame oil does have genuine benefits for the skin, which is why it shows up in so many skincare products and Ayurvedic traditions. It contains a group of natural compounds called lignans, the most studied being sesamol, sesamin, and sesamolin. Sesamol in particular acts as a strong antioxidant, neutralizing free radicals and reducing oxidative damage to skin cells. It also lowers inflammation by suppressing key inflammatory signals in the body, which can help with redness and irritation.
These properties make sesame oil useful for body care, massage, and dry skin on the arms and legs, where clogged pores are rarely a concern. The issue isn’t that sesame oil is bad for skin. It’s that the face has smaller, more concentrated pores that are far more susceptible to blockage.
Who Should Avoid It on the Face
If you have oily or acne-prone skin, sesame oil on the face is a gamble that often isn’t worth taking. The moderate comedogenic rating means some people will break out and others won’t, but lower-rated oils give you the same moisturizing benefits with less risk. Jojoba oil, rated at 2, is a common alternative that also helps regulate sebum production and reduce inflammation.
People with dry or normal skin who don’t typically get clogged pores may tolerate sesame oil on the face without issues. If you want to test it, apply a small amount to one area of your face for a week or two and watch for new blackheads, whiteheads, or small bumps. Comedogenic reactions are slow, so give it at least 10 to 14 days before deciding.
Sesame Oil and Contact Allergies
Beyond pore-clogging, a small number of people develop contact allergies to sesame oil. Research on patients with sesame oil contact dermatitis found that the lignans sesamol and sesamolin were the primary allergens. In one study of 13 patients with confirmed sesame oil allergy, 12 reacted to sesamolin and sesamin, and 8 reacted to sesamol. Allergic reactions look different from comedogenic breakouts: they tend to cause redness, itching, and sometimes swelling rather than blackheads or pimples. If your skin reacts to sesame oil with irritation rather than acne-like bumps, an allergy is more likely than a comedogenic response.
Lower-Risk Alternatives
If you’re looking for a facial oil that delivers similar moisturizing and anti-inflammatory benefits with less pore-clogging risk, several options score lower on the comedogenic scale:
- Jojoba oil (rating: 2) closely mimics human sebum, absorbs quickly, and helps balance oil production.
- Hemp seed oil (rating: 0) is high in linoleic acid and is one of the least likely oils to cause breakouts.
- Argan oil (rating: 0) is rich in vitamin E and absorbs without leaving a heavy residue.
- Rosehip oil (rating: 1) contains natural retinoids and is widely used for acne-prone and aging skin.
For body use, hair care, or oil cleansing (where the oil is washed off rather than left on), sesame oil’s comedogenic rating matters much less. The risk is primarily with leave-on facial application, especially overnight or under makeup where the oil sits on the skin for hours.