All your burning questions.

A thin gel dressing that absorbs fluid. It's the same wound-care material used in hospitals for decades. On a pimple it draws the fluid out and keeps the spot clean and covered while it heals.

That white circle is the fluid it pulled out of the spot. A cloudy patch has done its job — peel it off and put on a fresh one.

For standard pimple patches: when the spot has come to a head (you can see a whitehead) or as soon as you can feel it forming. For microneedle patches: as soon as you feel a lump under the skin that has not yet surfaced.

Until it starts to lift or peel off on its own, or until it turns from clear to white. White means it has soaked up all the fluid it can, and it's time for a fresh one.

Yes, our standard pimple patches are thin and flat enough to wear under foundation. Microneedle patches are thicker and more visible, so they are best worn overnight or with the shaped versions when you want them seen.

Hundreds of tiny needles made of dissolving hyaluronic acid melt into the skin, carrying salicylic acid and niacinamide down toward where the spot is forming. You wear one overnight.

No — they're microscopic and dissolve into the skin. Most people feel a light press, nothing more.

Salicylic acid, niacinamide, and hyaluronic acid in the dissolving needles. The standard hydrocolloid patches have no actives — just the gel.

Many spots look smaller and less inflamed within about 3 days. Some take longer. Wear one overnight, and swap it when the edges lift, or when the spot breaks open and the patch starts soaking up fluid.

No. Once it's absorbed fluid it's done — a fresh one every time.

Yes. In fact this is where hydrocolloid patches work best, by absorbing the fluid and preventing scabs. Just make sure the skin is clean and dry first.

The patch itself doesn't. Covered and left alone, a spot tends to heal with less of a mark than one you pick at.

No. Blackheads are dry, oxidised oil. Hydrocolloid only absorbs fluid, so it does not pull blackheads out.

Yes — same material, bigger and tougher. It cushions the raw skin and absorbs the fluid while the blister heals. Put it on at the first hot spot, before it tears.

As soon as you feel a hot spot or rubbing during a walk or run. The earlier you apply, the better. They also work over an existing blister to protect it.

Until it starts to lift or peel off on its own, or until it turns from clear to white. White means it has soaked up all the fluid it can, and it's time for a fresh one. Peeling it off before it's ready can hurt quite a bit, so leave it until it's ready to come off.

The same gel as the patches, uncut. Cut it to whatever shape the rub is: a strip up a heel, a band round a toe. One roll lives in the pack lid for a season.

Yes. Once it's on properly, it'll hold through a shower. A swim is more than it will take though. Just make sure you apply it to clean and dry skin.