When "period cup" comes up in conversation, it's usually followed by a stream of questions well beyond insertion and cleaning. If you want the full how-to on inserting, wearing and cleaning your cup, start with our complete period cup guide. Here, we're answering everything else: sex, IUDs, sizing, public bathrooms, and the questions people are too shy to Google.

What is a period cup?

A period cup is a flexible cup inserted into the vagina during menstruation. It collects your flow rather than absorbing it, unlike tampons or pads.

Why choose a period cup over other period products?

👉 It holds more fluid than a tampon or pad, so it needs changing less often

👉 Over as few as three cycles, a reusable period cup can save you money and cut down on disposable tampons or pads

👉 Some people find tampon fibres drying and irritating, since they absorb moisture as well as flow

👉 Pads can feel less breathable, which is part of why so many people switch

👉 Many people find period cups less prone to odour than tampons or pads

👉 You can monitor your flow, which is especially useful if you have endometriosis or heavy bleeding

👉 Using a cup can build a deeper awareness of your own cycle patterns

How do I know what size to get?

We're all different, so the Scarlet Period Cup comes in two sizes:

Size 1 - Regular: ideal for people who haven't given birth. Suited to lighter to medium flows. Holds up to around 3 regular tampons.

Size 2 - Large: ideal for people who have given birth. Suited to heavier flows. Holds up to around 4 regular tampons.

Still unsure? Email hello@scarletperiod.com and we'll help you find the right fit.

Can the cup get lost?

No. Your Scarlet Period Cup cannot get lost inside your vagina, gravity and anatomy won't allow it.

Can I have sex with the cup in?

Not with a standard period cup, no. Take it out first, then enjoy the magic of period sex.

Should I consider extra protection?

Not once you're confident with it. For your first few cycles, though, we recommend a backup pair of period underwear for peace of mind while you're learning.

Can I still do active things?

Yes. Swim, do yoga, run, surf, train, whatever your day involves. The cup is designed to move with you.

The cup is too big, surely it won't fit?

It will. There's plenty of room for the cup to sit comfortably once it's in place.

What's the lifespan of a period cup?

Looked after well, it should last for years, which is why it's so much better for the planet. Replace it at the first sign of wear or damage.

Can I sleep with the cup in?

Yes. Your Scarlet Period Cup can be worn for up to 8 hours, so insert it before bed and rest easy.

Can I use a period cup with an IUD?

Many people safely use IUDs alongside a period cup. If you're unsure, check with your doctor before inserting the cup.

Can I pee and poop while wearing the cup?

Of course. No need to remove it for a wee or a number two. Unlike a tampon string, it stays in place with no interference. If it feels like it's moved, just re-adjust with clean hands.

Need the step-by-step on insertion, removal, timing or cleaning? Our complete period cup guide covers all of it.