How to Choose Your First Menstrual Cup: Complete Beginner’s Guide

Did you know a single menstrual cup replaces around 2,500 tampons over its lifetime? That’s the size of period care’s best-kept secret: the disposables industry lives off your monthly repurchase, and a €15-20 product that lasts years has nobody to advertise it. Switching to a menstrual cup is a great step toward a more comfortable, healthier and more planet-friendly period, and most people who make the jump ask themselves the same question: why didn’t I discover this sooner? Here we cover everything: what a menstrual cup is, how to choose your ideal Sileu based on your flow and your body, the tricks to use and care for it from day one, and how to solve the small hiccups along the way. If you’re looking for the best menstrual cup for beginners, the honest answer is there isn’t just one: there’s the best one for you, and in this guide you’ll find it by comparing the 7 Sileu models with clear criteria.

Hand holding a red Sileu Rose menstrual cup next to its cotton storage pouch
Small, discreet and reusable for years: your first cup fits in the palm of your hand.

What is a menstrual cup, and why is it your best ally to get started?

A menstrual cup is a small, flexible container made of medical-grade silicone that sits inside the vagina to collect menstrual flow instead of absorbing it. That means less irritation, up to 12 hours of protection and zero waste. In Sileu’s case, every cup is made from German silicone by Wacker, certified to ISO 10993 (surgical-medical grade) — the same biocompatibility standard required of medical devices; you can read more about the ISO 10993, USP and FDA certifications.

How does this little wonder actually work?

The cup creates a gentle vacuum seal against the vaginal walls, trapping flow without leaks. Once folded and inserted, it opens up and forms a secure seal. You’ll feel protected, without ever noticing it’s there, day or night. Beyond the 12 hours of protection, it’s reusable for years — the savings and waste reduction are huge, as reflected in MedlinePlus’s resources on menstrual health.

Why choose a Sileu menstrual cup for your first time?

  • Protection that lasts up to 12 hours: forget constant changes.
  • Certified German Wacker medical silicone: soft and hypoallergenic.
  • Incredible savings: your cup will last for years for €14.99-19.99.
  • 7 models and 2 sizes: there’s a Sileu that fits you like a glove.

Myths about the menstrual cup? Let’s bust them!

  • “It hurts to take out.” False: with the right technique (pinching the base to break the seal) it comes out painlessly. We show you how in how to remove the cup without trouble.
  • “It causes infections.” With proper hygiene, the cup doesn’t absorb or dry out tissue, and the evidence backs it up: the systematic review published in The Lancet Public Health (2019), covering 43 studies and over 3,300 participants, concluded that menstrual cups are safe and have leakage rates equal to or lower than tampons and pads. We go over it in the scientific evidence behind the menstrual cup. If you experience any persistent discomfort, consult your gynecologist.
  • “It’s really complicated to insert.” With a couple of simple folds and two or three cycles of practice, it becomes second nature.

Which is the best menstrual cup for you? The 7 Sileu models compared

Firmness chart to choose the best menstrual cup among the 7 Sileu models
Firmness is the criterion most people forget when choosing a cup — and the one that prevents the most leaks.
ModelFirmnessBest forPrice
Sileu SoftVery softSensitive bladder, weakened pelvic floor, maximum comfort€14.99
Sileu DivineVery softSensitivity, discomfort with firmer cups, postpartum€14.99
Sileu ClassicMediumThe everyday all-rounder, a safe first cup€14.99
Sileu TulipMediumElongated tulip shape, mid-to-high cervix€14.99
Sileu RoseChoose: Soft, Standard or SportBeginners: rose shape, velvety touch, the best-seller€19.99
Sileu BellFirmLow cervix: shorter, with a trimmable string-type stem€14.99
Sileu SportThe firmestIntense sport and a very toned pelvic floor€14.99

Looking for a shortcut? If you don’t have any special circumstances (low cervix, high-impact sport, hypersensitivity), the Rose is the most rewarding first cup — there’s a reason it’s the store’s best-seller, and its rose-shaped design story explains why. If you’re comparing brands before deciding, our Enna vs Sileu comparison lays out the numbers.

🌹 The most rewarding first cup: Sileu Rose — €19.99

Rose shape, velvety touch and three firmness options to match your pelvic floor. Includes a cotton pouch. Over 500 units sold, shipped from Spain in 24-72h.

See the Sileu Rose →

How to find your perfect Sileu cup to get started

Diagram with 3 questions to choose the best menstrual cup for beginners
Cervix, flow and pelvic floor: the three questions that decide your ideal cup.

For your first experience to be a success, the ideal cup will depend on your cervix height, the strength of your pelvic floor, and the amount of your flow. Knowing these three things will help you choose one that fits perfectly, without leaks or discomfort.

How do your flow and body shape the right choice of cup?

  • Cervix: measure it with your finger on a period day (full guide to finding your cervix). Low cervix: short cups like the Bell. High cervix: longer models like Classic or Tulip, or check out our cups for a high cervix.
  • Flow: light, go for a smaller, softer cup; medium or heavy, more capacity and medium firmness.
  • Pelvic floor: toned (intense sport), a firm cup like the Sport; weakened or sensitive, a soft cup like the Soft or Divine.

Which Sileu size and flexibility is best for beginners?

SizeBest for
SLight-to-medium flow, no vaginal births, teenagers and beginners
LHeavy flow, after a vaginal birth, or greater vaginal length

Torn between the two? The Starter Pack with size S and L (€21.99) includes both, in the model and color you choose: try them both and keep the one that fits.

Which Sileu cup is recommended for younger users, and why?

For girls who are just starting out, the Sileu Soft is a champion thanks to its softness and flexibility, which makes inserting and removing it easier. The Sileu Rose is the other great option for its manageable size, balanced firmness and a design made specifically to take the fear out of your first cup.

How to use and care for your Sileu cup from day one

Starting step by step will build your confidence and ensure maximum hygiene.

How do I prepare and sterilize my cup before first use?

Boil it for 5 minutes in clean water, or use the Sileu Clean foldable sterilizer (€12.99): 3 minutes in the microwave and it’s ready. Repeat this sterilization at the end of each period.

What are the easiest folds for inserting it without trouble?

  1. C-fold: fold the cup into a “C” shape so the tip is thinner.
  2. V-fold (punch-down variant): bring the edges together to create a narrow tip.
  3. Punch-down: push the rim down toward the base for a more pointed tip.
Diagram of the three folds for inserting a menstrual cup: C-fold, V-fold and punch-down
The three most common folds: pick whichever works best for you — there’s no single “right” one.

You’ll find photos and tips for each one in ways to fold the menstrual cup.

How do I make sure the cup is properly in place?

Insert the folded cup, let go and rotate it slightly so it opens fully and forms the seal. You’ll notice a light suction that confirms it’s correctly positioned, with no uncomfortable pressure on the urethra.

How do I remove the cup without discomfort or spills?

Gently pinch the base to break the seal and slide it out carefully, ideally while squatting and taking your time. Avoid pulling on the stem alone.

How do I clean and care for my cup throughout my cycle?

Between emptyings, rinse it with water and, if you like, a mild oil-free soap. At the end of your cycle, sterilize it and store it in its cotton pouch. Full guide: how to clean your menstrual cup.

What to do if you run into a problem with your Sileu cup as a beginner

It’s normal to have questions at first. Here are the three most common hiccups and how to solve them:

  • Leaks: usually an incomplete seal or a firmness that’s too low for your pelvic floor. Rotate the cup after inserting it, and if it persists, go up in firmness or double-check your size.
  • You can feel the cup: this can happen at first; if it’s genuinely bothersome, try trimming the stem or switching to a softer model. More help in pain-free menstrual cup use.
  • Constant urge to urinate: a sign the cup is too firm and pressing on the urethra; the Soft or Divine almost always solve it.

What about sports and sleeping? No problem: the cup keeps its seal through intense exercise and overnight, for up to 12 hours straight (empty it at least twice a day). And if anything feels off, our FAQ and our support team are there to help.

What other Sileu products can make your cup experience even better?

Rose, Soft and Classic: contenders for best menstrual cup to start with, with prices
Rose, Soft and Classic: our users’ three favorite entry points.
  • Period underwear made from organic cotton with OEKO-TEX Standard 100 certification (free from harmful substances), €9.99: the perfect backup for your first few cycles while you build confidence. Also available as a period underwear + Rose cup pack for €26.99.
  • Sileu Clean foldable sterilizer (€12.99) and SileuCase carrying case (€3.99): hygiene and travel, sorted.
  • Sileu Travel Pack (€29.99): Rose cup + sterilizer + pouch, the store’s best-selling pack with over 600 units sold.

And that’s the full picture. Take your time choosing, give your body two or three cycles to adjust, and get ready to wonder why you didn’t do this sooner.

What is the best menstrual cup for beginners?

Whichever fits your body. As a general rule, the Sileu Rose (€19.99) is the best first cup for most people thanks to its balanced firmness, manageable size and three flexibility options; if you have a sensitive bladder, the Sileu Soft (€14.99) is the most comfortable choice.

What menstrual cup size should I choose if I’ve never used one?

Size S if your flow is light-to-medium and you haven’t had a vaginal birth; size L if your flow is heavy or you’ve given birth vaginally. If you’re unsure, the Starter Pack includes both S and L for €21.99 so you can try both.

How many hours can I wear a menstrual cup?

Up to 12 hours straight, though it’s recommended to empty and rinse it at least twice a day. Sterilize it before first use and at the end of each period.

Why does my menstrual cup leak?

The most common causes are an incomplete seal (rotate the cup after inserting it so it opens fully), a firmness that’s too soft for your pelvic floor, or the wrong size. Adjusting those three factors resolves leaks in the vast majority of cases.

🎒 Torn on sizing? Starter Pack S+L — €21.99

Two cups (size S and L) in the model and color you choose, so you can get it right without the guesswork. Or start with everything: the Sileu Travel Pack (Rose cup + sterilizer + pouch) for €29.99. Shipped from Spain in 24-72h.

See the Starter Pack → · See the Travel Pack →

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