The short version
Why oily skin still needs moisturiser
Oil and water are different things. Sebum doesn't hold water in the outer layer, so skin can be greasy and dehydrated at the same time — and stripping it with harsh cleansers tends to make the shine worse, not better.
What oily skin needs is the hydration without the heavy occlusive load: a light, water-based formula that hydrates and then gets out of the way.
If the first five ingredients are water, glycerin and humectants, it will behave. If they're butters and heavy esters, it won't — whatever the front of the bottle claims.
Reading the label
What to look for, and what to skip
Look for: lightweight humectants
Glycerin, hyaluronic acid, betaine, panthenol. They hydrate without adding grease, and they carry no pore-clogging risk.Look for: niacinamide
One of the few ingredients with reasonable evidence for sebum control and redness, and it plays well with almost everything else.Go carefully with: rich emollients
Shea butter, coconut oil, isopropyl myristate, heavy esters. Lovely on dry skin, but the usual cause of a formula reading "greasy" by lunchtime — and some rank high for pore-clogging.Ignore: 'oil-free' and 'mattifying'
Neither has a legal definition. Silica and starches can blot for an hour or two, but the base is what determines the finish all day.
Not sure about a specific formula? Run it through the pore clogger checker — it weights each ingredient by where it sits on the list, so a trace of coconut oil at the end doesn't get treated like the second ingredient.
How we score it
The ratings we'd check first
Finish
Matte to natural
How the formula reads an hour in, rated separately from how hydrating it is.Pore-clogging risk
Low
Comedogenic ingredients scored by list position, not a blanket yes/no from a decades-old rabbit-ear study.Under makeup
No pilling
Some film formers ball up under foundation. We track that as its own axis because it's the most common complaint.Price per ml
Checked in your currency
Compared in GBP, EUR and USD, so an import mark-up can't make a mid-range cream look luxury.
In practice
Combination skin: two textures, one face
Most "oily" skin is really combination: an oily centre panel and normal or dry cheeks. You don't need two products — you need one light base, with a little more of something richer patted onto the dry areas at night.
A gel-cream in the morning under a sunscreen that suits oily skin is usually enough. Skipping moisturiser to "dry it out" leaves the barrier worse and the shine unchanged.
Limits
Where the honest answer is 'we don't know'
Sebum output varies with hormones, climate and genetics, so no formula performs identically for two people. Comedogenicity ratings are also imperfect: they come from old animal-model data and are a risk signal, not a verdict.
Where a brand doesn't disclose how much niacinamide is in the bottle, we say the amount is unknown rather than assuming it's meaningful.
Related: moisturiser for acne-prone skin, moisturiser for dry skin, fungal acne checker.
Free tools & guides
No sign-up.
- ToolIngredient decoderPaste an INCI list and see what each ingredient actually does.
- ToolPore clogger checkerFind the comedogenic ingredients, weighted by list position.
- ToolFungal acne checkerSpot the ingredients malassezia yeast can feed on.
- ToolPregnancy ingredient checkerScreen a formula for ingredients commonly avoided in pregnancy.
Early access
Matte at 9am, shiny by 11?
We rate moisturisers on finish, pore-clogging risk, how they sit under makeup and price per ml — so you can tell a good cream from a good cream for oily skin.
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