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Muna Period Cup | Medical Silicone. Nothing Else
Muna Menstrual Cup
Sale price  £19.99 Regular price  £30.00

YOUR PERIOD. HANDLED

The switch most people wish they'd made sooner. Soft, medical-grade silicone that collects rather than absorbs — no dryness, no disruption. Up to 12 hours of wear. Moves with your body. One cup, up to 10 years.

90-day guarantee
Free UK delivery
Medical-grade silicone
Cotton pouch included

If it doesn't work for you in the first 90 days, we'll make it right — no questions asked.

Select Size:

Size guide

Find your fit.

Two sizes. Same soft medical-grade silicone. The right one depends on your flow and body.

S
Size S
Light to medium flow
20 ml
≈ 2–3 tampons · 43mm wide · 63.8mm tall
L
Size L
Medium to heavy flow
25 ml
≈ 3–4 tampons · 47mm wide · 69.5mm tall
Your situation Under 30 30+
Never given birth vaginally S S or L
Given birth vaginally L L
C-section S S or L
When in doubt, start with S. It fits most people. You can always size up next cycle.
How to use it

Fold. Pinch and fold — C, 7, or punch-down. It's smaller than you think.

Insert. Angle back, not up. Insert low and let it pop open. You'll feel the seal.

Wear. Up to 12 hours. Gym, sleep, swimming, no adjusting, no checking.

Remove. Squeeze the base to break the seal. Pull gently by the stem. Empty, rinse, reinsert. Thirty seconds. Done.

How to clean it

Before your period: boil your MUNA cup in water for 5 minutes. That's it — sterilised and ready.

During your period: empty, rinse under tap water, reinsert. No soap needed. No fuss.

After your period: boil again for 10 minutes, dry fully, and store in the cotton pouch included. Ready for next month.

Medical-grade silicone doesn't harbour bacteria. Cup users are 70% less likely to face infections than tampon users.

Is it right for me?

Size S: sight to medium flow. Holds 20ml (roughly 2–3 tampons worth).

Size L: medium to heavy flow. Holds 25ml (roughly 3–4 tampons worth).

Not sure? Start with S. Most people find it fits well regardless of age or whether they've given birth.

If you have an IUD, the cup is generally safe to use — but check with your gynaecologist first, especially in the first few months after insertion.

90-day guarantee

Learning to use a menstrual cup takes a cycle or two. We know that. So we give you 90 days to figure it out — no pressure, no deadline hanging over you.

If it's not for you after 90 days, contact us and we'll sort it. No long forms, no hassle.

One condition: give it a real try. Most people who think it's not working are one small adjustment away from it clicking.

Shipping & returns

UK delivery: free, always. Dispatched within 1–2 business days.

International: we ship worldwide. Rates at checkout.

Returns: for hygiene reasons we can't accept returns on opened cups. If your order arrives damaged, contact us immediately.

How it works

Three steps. Then you stop thinking about it.

Fold and insert illustration

Step 01

Fold & Insert

Pinch, fold — C, 7, or punch-down. Insert low, angled back. It pops open and creates a seal. You'll feel when it's right.

Wear and forget illustration

Step 02

Wear & Forget

Up to 12 hours. Gym, office, sleep — handled. No leaks, no backup plan. Change it when you want to, not because you have to.

Remove and rinse illustration

Step 03

Remove & Rinse

Break the seal, pull gently by the stem. Empty, rinse under the tap, reinsert. Thirty seconds. Repeat for ten years.

One cup. No thinking. Your period, handled.

Answered. The things people actually ask.

Real questions. No fluff.

Not if inserted correctly and the seal is formed. Most leaks happen in the first 1–2 cycles while you're learning. Once you know how it sits, leaking stops being a concern.

It shouldn't. The MUNA cup is soft medical-grade silicone — it folds small and opens gently. If it's uncomfortable, it's usually about angle or position, not the cup itself. Most people are surprised by how easy it is after the first try.

No. When inserted correctly, you shouldn't feel it at all. The stem sits just inside the entrance, not poking or pressing anything. Unlike conventional cups, you don't need to trim the MUNA stem — it's ergonomically designed to sit flat and irritation-free.

Yes, yes, and yes. Up to 12 hours continuous wear — including sleep. The seal holds during exercise, swimming, and any activity. No adjusting, no checking.

Before your period: boil for 10 minutes. During your period: empty, rinse under tap water, reinsert. At the end of each cycle: boil again, dry, and store in the cotton pouch included.

Generally yes, but we recommend checking with your gynaecologist first — especially in the first few months after insertion when IUD strings may still be adjusting. Many people with IUDs use menstrual cups without issue.

Size guide

Find your fit.

Two sizes. Same soft medical-grade silicone.
The right one depends on your flow & body.

S 20 ml

Light to medium flow

≈ 2–3 tampons

  • Under 30
  • No vaginal birth
  • C-section
  • Light–medium flow
L 25 ml

Medium to heavy flow

≈ 3–4 tampons

  • 30 or older
  • Post vaginal birth
  • Heavy flow
  • Larger build

Not sure? Start with S — it fits most people. You can always size up next cycle.

Real people. Real periods

The switch they wish they'd made sooner

Caitlin, MUNA Cup

"Wore it to the beach, to the gym, slept in it. Didn't think about my period once."

Caitlin, 24

Sophie, MUNA Cup

"I was so sceptical at first. Now I genuinely can't imagine going back to tampons."

Sophie, 28