Comedogenic Ingredients List: Names That Clog Pores

The short answer

A comedogenic ingredient is one that has been shown, in testing or in a credible rating system, to help form comedones. Comedones are the clogged pores that become blackheads, whiteheads, and the base of many breakouts. A comedogenic ingredients list is a shortcut. It tells you which names on a label deserve a second look. It is not a verdict on any product. Use it to narrow your search, not to throw out everything that has a long name. This is informational, not medical advice.

Why some ingredients clog pores

Pores clog when dead skin cells and sebum mix with a film that does not wash away easily. Some ingredients are heavy, occlusive, or simply rich in fatty molecules that can stay in the follicle. Esters, which are often used to make creams feel silky, and some plant butters and oils are the usual suspects. Acne-prone skin reacts more because the follicle is already inflamed or prone to plugging.

Dose and formula matter just as much as the ingredient itself. An item at the bottom of a long label is present in a tiny amount. A product whose first five ingredients are heavy oils behaves very differently from one where a single oil appears near the end.

Ingredient families to check first

Scan for these families before anything else:

• Esters, such as isopropyl myristate and isopropyl palmitate. They give a light, dry feel, and several sit high on classic comedogenic rating lists.
• Plant butters and oils, such as coconut oil and cocoa butter. They are rich and occlusive, which is great for dry skin and often too much for breakout-prone faces.
• Some fatty alcohols and acids, which can be harmless or problematic depending on chain length and the rest of the formula.
• Certain lanolin and wax derivatives, which vary a lot between grades and suppliers.

Many of these are fine on the body, scalp, or lips for people who break out only on the face. The face is the place where clogging is most visible and most annoying.

How to use a list without overreacting

A matching name does not make a product bad for you. Ask three questions:

1. Where does the ingredient sit on the label? Near the top means there is more of it.
2. Is it the main moisturizing base or a small additive?
3. Have you actually broken out after using it? Your own skin is the final test.

Ingredients also differ by source. Refined and unrefined versions of the same oil can behave differently, and rating methods vary. The free pore-clogging checker shows the rating and source notes for each flag, so you can see why an ingredient was marked rather than trusting a single color.

Common mistakes

• Treating the list as complete. Nobody has tested every ingredient, and new ones appear constantly. A missing name is not a green light.
• Trusting one website’s rating as final. Ratings come from different labs and methods, and two sites can disagree on the same ingredient.
• Removing everything at once. Swapping six products in one week makes it impossible to know what caused a reaction. Change one thing at a time.
• Assuming “non-comedogenic” on a label means it will never break you out. That phrase is not defined by the FDA, so it is a marketing claim you still need to check.

What to do with the list

Start with the products you use every day: moisturizer, sunscreen, and any leave-on treatment. Run each full ingredient list through the free pore-clogging checker, note the flags, and make one change at a time. If you want detail on a specific name, read Is Coconut Oil Comedogenic?, Is Shea Butter Comedogenic?, or Is Isopropyl Myristate Comedogenic?. Each flagged ingredient also has a profile page at /ingredients/isopropyl-myristate/.

If you are still unsure how a rating is built, How the Comedogenic Rating Scale Works explains the 0 to 5 system and its limits. For fungal acne, which behaves differently from ordinary breakouts, see Fungal Acne Safe Checker. A dermatologist can help if breakouts persist, are painful, or leave scarring.