Do face masks actually work?
For short-term things like how soft, hydrated and fresh your skin feels, yes. For lasting change, mostly no. A mask sits on your skin for a few minutes, once or twice a week, so it can't do what daily sunscreen does over years. The fair way to judge one is by how your skin feels afterwards and whether you enjoy the time.
We sell masks, and this is still what we think. Scepticism is healthy here, because this category has a lot of big promises and not much proof.
What a mask is good at
Most masks have one thing in common: they sit on your skin as a covering and hold their ingredients against it for a while. A covering can also slow water leaving the top layer of skin, much as occlusive moisturisers reduce evaporation. So the outermost layer can take on more water, and skin feels softer and can look plumper for a while.
That's a real effect that you can feel, and it's the honest core of what a hydrating mask offers. It's also temporary. It's like a good drink of water for the surface of your skin, and it fades unless you keep the moisture in with a moisturiser.
What the research looks like
Mask research tends to be small and tends to be paid for by the people who make the mask. Here's a typical example. A 2023 study of a clay mask reported less surface oil and better hydration after four weeks. But it was funded by the maker, its authors worked for the company, and it had no comparison group, so we can't tell how much of that came from the mask. That doesn't make the results false. It does mean you should hold them loosely.
We don't have a study of our own masks, so we don't quote any numbers. What we say about ours is limited to how they feel and look straight after you peel.
What a mask can't do
- Replace your own collagen. Collagen in a mask stays on the surface. See does collagen in skincare work?
- Clear blackheads for good. See peel-off masks and blackheads.
- Do the job of a daily habit. DermNet says retinoid results can take 12 weeks or longer with regular use. A mask worn for 15 to 20 minutes a couple of times a week isn't the same kind of exposure, even if the ingredient is on the label.
- Remove toxins. We know of no good evidence that a mask draws toxins out through your skin.
- Fix a skin condition. In New Zealand, cosmetics aren't allowed to make therapeutic claims. If a mask seems to promise that, be wary, and see your GP about the skin problem.
What does make a lasting difference
The dull answer is the right one: daily sunscreen (see sunscreen in New Zealand), a cleanser that doesn't leave you feeling tight, and a moisturiser you actually use. If you only do those three things, you're ahead of any mask. Where a mask fits around them is in skincare routine order.
So why use one?
Because it feels good, and that counts. Fifteen minutes lying still with a cool layer on your face, with no phone in your hand, is a pleasant thing to do. Your skin feels nice afterwards. That's a fair reason to own a mask, as long as you know that's what you're buying. It's also why we'd rather describe ours in terms of what you'll notice. For Hyaluronic Acid, for example, that's "comfortable, not tight, the moment you peel".
Questions
How long do the effects of a face mask last?
Usually hours rather than days, though that varies by mask and by person. Following up with a moisturiser helps keep the soft feeling for longer.
Are expensive face masks better?
Price doesn't tell you much. Compare the ingredient lists, the cost per use, and whether you'd actually use it. A mask you enjoy and use is worth more than one that sits in a drawer.
Do face masks detox your skin?
We know of no good evidence that a mask removes toxins through your skin. Masks can take up surface oil or add water to the outer layer, which is a different thing.
This is general information, not medical advice. If you're worried about your skin, see your GP or a skin specialist.
Sources
- Emollients and moisturisers, DermNet
- Comprehensive assessment of the efficacy and safety of a clay mask in oily and acne skin, Zhang and colleagues, Skin Research and Technology, 2023
- Topical retinoids, DermNet
- Categorisation of products, Medsafe