Fun Factory - Fun Cup Size B - Menstrual Cups - Magenta

What Is the Fun Factory Fun Cup Menstrual Cup Size B?

If you have been thinking about switching to a reusable period product, the menstrual cup size B from Fun Factory could be exactly what you are looking for. The Fun Cup Size B is a body-safe, reusable intravaginal cup designed to collect menstrual fluid rather than absorb it — a meaningful distinction that many people find more comfortable over time. Made from smooth, medical-grade silicone, it is free from latex, BPA, and phthalates, making it a thoughtful choice for those with sensitive skin or chemical sensitivities. You can explore a wider range of intimate care and women's health products at Cured Pharmacy to support your cycle from every angle.

The magenta colour makes it easy to identify in your washbag, and the cup comes with a breathable cotton storage pouch. At just £6.95, it represents genuine long-term value compared to the ongoing cost of disposable tampons or pads — the NHS estimates that people who menstruate spend a significant amount annually on period products, so switching to a reusable option makes both financial and environmental sense.

How Does the Fun Factory Fun Cup Size B Work?

The cup works by sitting inside the vaginal canal and forming a gentle seal against the vaginal walls. Rather than absorbing fluid like a tampon, it collects it in a small reservoir. This means there is no risk of the dryness that tampons can sometimes cause, and the silicone material does not disrupt the natural vaginal environment.

• Fold the cup (C-fold or punch-down fold are popular choices) and insert it at a slight angle toward your tailbone.
• Once inside, the cup opens and rotates to create a light suction seal — you should not feel it when correctly positioned.
• Wear for up to 12 hours, then remove by pinching the base to release the seal, empty the contents into the toilet, rinse with clean water, and reinsert.
• At the end of each cycle, sterilise the cup by boiling it in water for 3–5 minutes before storing it in its cotton pouch.

Who Should Use the Fun Factory Fun Cup Size B?

Size B is the larger of the two Fun Cup sizes. It is generally better suited to those who experience a heavier menstrual flow, or who have given birth vaginally and may find a smaller cup less secure. That said, cup sizing is not an exact science — your anatomy, pelvic floor strength, and personal preference all play a role. If you are unsure which size suits you, Fun Factory also offers a Size A for lighter flows or first-time users.

The Fun Cup Size B may be a good fit if you:

• Have a moderate to heavy menstrual flow.
• Have previously given birth vaginally.
• Have tried smaller cups and found them uncomfortable or prone to leaking.
• Want a longer wear time of up to 12 hours without needing to change.

How Does the Fun Cup Size B Compare to Other Menstrual Cups?

Is the Fun Factory Fun Cup Size B Clinically Safe to Use?

Yes. The Fun Cup is manufactured from body-safe silicone that meets recognised safety standards. It does not contain latex, BPA, or phthalates. However, if you use an intrauterine device (IUD) for contraception, you should speak to your GP or sexual health nurse before using any menstrual cup, as there is a theoretical risk of dislodging the IUD strings. You can also browse our condoms and sexual health collection for complementary intimate care products.

Toxic shock syndrome (TSS) is a rare but serious condition associated with tampon use; while the risk with menstrual cups is considered very low, it is not zero. Always wash your hands thoroughly before insertion and removal, and never leave the cup in for longer than 12 hours. The menstrual cup size B is not a medicinal product, but good hygiene practice is essential for safe use.

This product is a medical device. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

What Is the Fun Factory Fun Cup Size B and What Is It Used For?

The Fun Factory Fun Cup Size B is a reusable intravaginal menstrual cup made from smooth, body-safe silicone. It is used to collect menstrual fluid during your period, offering an alternative to disposable tampons and pads. Unlike absorbent products, the cup holds fluid in a small internal reservoir, which many users find more comfortable and less drying. It can be worn for up to 12 hours at a time, including overnight, making it a practical option for those with busy lifestyles or heavier periods.

The NHS acknowledges that menstrual cups are a safe and effective option for managing periods, and their reusable nature means significantly less waste compared to disposable products. The Fun Cup Size B is the larger of the two Fun Cup sizes and is particularly suited to those with a heavier flow or those who have given birth vaginally.

What Do You Need to Know Before Using the Fun Factory Fun Cup Size B?

Before using any menstrual cup, there are some important considerations to be aware of. Please read the following carefully.

Do not use this product if you:

• Have been advised by a healthcare professional not to use intravaginal products.
• Are in the first 6 weeks after giving birth — allow your body to recover fully before resuming cup use.
• Have an active vaginal or pelvic infection — wait until the infection has fully resolved.
• Have recently had gynaecological surgery — seek medical advice before use.

Warnings and precautions:

• If you use an IUD (coil) for contraception, consult your GP or sexual health nurse before using a menstrual cup, as there is a theoretical risk of disturbing the IUD strings.
• Never leave the cup in place for more than 12 hours — doing so may increase the risk of bacterial growth.
• Toxic shock syndrome (TSS) is a rare but serious condition. Seek immediate medical attention if you develop a sudden high fever, rash, vomiting, dizziness, or muscle aches while using the cup.
• Always wash your hands thoroughly with soap and water before inserting or removing the cup.

Known interactions:

• No drug interactions are known — this is a non-medicated silicone device.
• Do not use oil-based lubricants with the cup, as these can degrade silicone over time. Water-based lubricants are safe to use if needed.

How Should You Use the Fun Factory Fun Cup Size B?

Getting the hang of a menstrual cup takes a little practice — most people find it becomes second nature after two or three cycles. Follow these steps for safe and comfortable use.

1. Wash your hands thoroughly with soap and water.
2. Sterilise the cup before first use by boiling it in water for 3–5 minutes.
3. Fold the cup — a C-fold (fold in half) or punch-down fold both work well.
4. Relax your pelvic floor muscles and insert the folded cup into the vagina at a slight angle toward your tailbone.
5. Once inside, allow the cup to open fully. Rotate it gently to ensure a seal has formed — you should feel no discomfort.
6. Wear for up to 12 hours. On heavier days, check and empty more frequently.
7. To remove, wash your hands, then pinch the base of the cup firmly to break the seal. Gently pull downward and tip the contents into the toilet.
8. Rinse the cup with clean water and reinsert, or wash with a mild, unscented soap if preferred.
9. At the end of your cycle, sterilise the cup again by boiling for 3–5 minutes, then store in the breathable cotton pouch provided.

What Are the Possible Side Effects of the Fun Factory Fun Cup Size B?

Most people use menstrual cups without any problems at all. However, as with any intravaginal product, some side effects are possible, particularly during the initial learning period.

Common side effects:

• Mild vaginal discomfort or a feeling of pressure during the first few uses.
• Minor leaking if the cup has not formed a proper seal — this usually resolves with practice.
• Difficulty removing the cup, particularly for first-time users.

Less common side effects:

• Vaginal irritation or mild soreness, particularly if the cup is not rinsed thoroughly.
• Cramping or a sensation of fullness if the cup is positioned too high or too low.
• In very rare cases, signs of toxic shock syndrome (TSS) — seek emergency medical care immediately if you experience sudden fever, rash, vomiting, or confusion.

If you experience persistent discomfort, unusual discharge, or any signs of infection, stop using the cup and contact your GP. You might also find it helpful to browse our thrush and vaginal health range if you are experiencing any related symptoms.

How Should You Store the Fun Factory Fun Cup Size B?

Proper storage keeps your cup hygienic and extends its lifespan. Follow these simple guidelines between cycles.

• Always sterilise the cup by boiling for 3–5 minutes before storing at the end of each cycle.
• Store in the breathable cotton pouch provided — never in an airtight container, as silicone needs airflow to prevent bacterial growth.
• Keep away from direct sunlight and heat sources, which can degrade silicone over time.
• Store at room temperature — do not refrigerate.
• Inspect the cup before each use for any signs of deterioration, discolouration, or damage. Replace if the silicone shows any cracks or stickiness.
• Keep out of reach of children.

For further support with your menstrual health and wellbeing, you may also find our pain relief collection helpful for managing period cramps alongside your cup use.