• Ruby Cup menstrual cup in red with cotton bag and cardbox
  • Purple Ruby Cup menstrual cup held by a hand with product features listed
  • Two purple Ruby Cup menstrual cups with size comparison Small and Medium
  • Ruby Cup menstrual cups in different colours
  • Three people holding a Ruby Cup menstrual cup Buy One Give One Programme
1 8

Ruby Cup Menstrual Cup

Ruby Cup Menstrual Cup

Color: Ruby
Size

120-Day Money Back Guarantee

Holds Up To 3 Super Tampons

Reusable 10 Years

Buy One, We Give

One To Someone

in Need

BPA, Latex &

Toxin Free

Up To 12 Hours

Of Protection
Trustpilot

The ultimate period sidekick, trusted by thousands since 2011. Traveling, swimming, or moving to the flow of everyday life – take back control of your cycle with a product that shows up for you (and your plans).

Our Ruby Cup is designed with you, your period and the planet in mind. Make the switch for bloody good periods, every month.

The Details

Ruby Cup promises a comfortable fit with every wear. Made from 100% medical-grade silicone, its flexible, seamless design ensures easy application, making it perfect for first-time users.

Ruby Cup is available in two sizes: Small and Medium. Not sure about your size? Take our size quiz, available at the top of the product page, to find your perfect fit.

Each cup is packaged with love and care. To show our commitment to a greener future, we use only 100% compostable and recyclable materials.

The Good Stuff

One cup equals 3 super tampons and can hold up to 50 ml
For every Ruby Cup purchased, we donate another
Good for you, good for the planet. Our products last for years and are free from harmful substances.
Washable, reusable, and 100% sustainable
Ruby Cup comes in two sizes to fit every body perfectly
One Ruby Cup can last up to 10 years

Care Instructions

Ruby Cup Menstrual Cup:

* Before/after your period

Boil your menstrual cup in a pan or in a Ruby Sterilizer filled with water for 2–3 minutes.

* During your period

Simply empty your cup, rinse under clean running water, reinsert and go! In a public toilet, use a bottle of water to rinse your cup over the toilet. Or wipe clean with dry or damp toilet paper, then reinsert.

Wear. Rinse. Repeat. Simple!

Ruby Cup Period Underwear:

Our period pants are built to last. Care for them easily with these simple steps:

  • Wash on a cold wash and hang to air dry.
  • Avoid fabric softener and bleach.
  • Steer clear of tumble drying, or ironing.

Social Impact

Periods shouldn’t stop anyone from living their best life. That’s why, for every Ruby Cup sold, we donate one to someone facing period poverty around the world. Thanks to our community and NGO partners, we’ve donated over 150,000 cups so far! Plus, 2% of every Ruby Cup period pants sale goes to a Learning Centre nursery in Kisumu, Kenya, built with our long-time partners, the Golden Girls Foundation, supporting early education and nurturing young minds.

The Ruby Standard

We say no to nasties. Free from BPA, latex and toxins, Ruby Cup offers a reliable and eco-friendly solution for your monthly cycle — crafted from safe and hygienic medical-grade silicone. Because your safety comes first, we treat Ruby Cup with the same rigorous standards as a Class II medical device. Our silicone meets strict European requirements and undergoes voluntary testing for biocompatibility, cytotoxicity, irritation, and sensitisation.
For full transparency, the SGS reports below show that Ruby Cup passed independent tests for VOM (Volatile Organic Materials) and Siloxanes, confirming that our medical-grade silicone is clean, stable and free from harmful residues.

cmiofxjdb000001s62r6g2r4i

cmiofza21000001s6cfagf6mc

Shipping & Returns

UNITED KINGDOM:

  • Tracked shipping: Free on all orders
  • Delivery: 2 business days from fulfillment

WORLDWIDE:

  • Untracked shipping: £2–£8.50 depending on parcel size and destination (no tracking included)
  • Tracked shipping: £5.50–£15.00 depending on parcel size and destination
  • Delivery: 5–7 business days for tracked, 9–12 business days for untracked

RETURNS & EXCHANGES

We want you to feel confident with your Ruby Cup products.

  • Menstrual Cups: Covered by our 120-day Money-Back Guarantee. If the cup isn’t the right fit, you can request a full refund or a size exchange within 4 months of purchase.
  • Period Panties: Covered by our 60-day Try & Love It Guarantee. If you’re trying our underwear for the first time and they’re not right for you, you can get a refund for one used pair within 60 days. If you purchased a bundle, only one used pair is eligible for a refund or a size exchange; all other items follow our standard return policy and must be returned unopened in their original packaging within 30 days of receiving them.

These guarantees apply only to the products listed above. Sterilizers and other accessories follow our regular return rules.

Read more about our return policies here.

View full details

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How to use

  • Step 1
    Sterilize your Ruby Cup in our Ruby Sterilizer before folding and inserting. Fold and insert your Ruby Cup. There are lots of ways to fold your cup – try them out and find the one that works best for you
  • Step 2
    Remove your cup, pour the contents in the toilet, rinse with water or wipe with toilet tissue before inserting again. You can wear your Ruby Cup for up to 12 hours, depending on your flow
  • Step 3
    After your period, fill your Ruby Sterilizer with water, add your Ruby Cup and microwave for 3-5 minutes (or until the water’s boiling). Once they’re both dry, and return to the cotton bag for safekeeping until your next period

Good to know

What is a Ruby Cup?

Enjoy the freedom of a period without limits with Ruby Cup. Created with first-time users in mind, our Ruby Cup’s a planet-friendly, reusable solution to single use tampons and pads.

Made from medical-grade silicone, Ruby Cup’s flexible and seamless design makes it easy to use, even for beginners.

Our cups give comfortable, reliable and leak-proof period protection for up to 12 hours, day and night, whatever your plans. Voted best cup for sports by Women’s Running Awards 2024.

3x the capacity of a super tampon
100% vegan and plastic free
15K+ tons plastic saved
120-day money back guarantee

What are the benefits of using a Ruby Cup?

A Ruby Cup is a menstrual cup that comes with a generous handful of benefits that traditional methods just can’t offer. Here are just a few:

*Eco-friendly: a Ruby Cup can be re-used for up to 10 years;

*Affordable: because a Ruby Cup lasts up to 10 years, you’ll rake in long-term savings of more than 95% compared to disposable period products;

*Less fuss: a Ruby Cup has 3 times the capacity of a super tampon. Depending on the heaviness of the menstrual flow it can be worn up to 8 hours. You have everything you need in one simple product;

*Healthy: the Ruby Cups are made from 100% medical-grade, soft silicone and are free from plastics, latex, toxins and bleaches. As they collect, but don't absorb the menstrual flow, the vaginal flora stays intact;

*Life-changing: we call it the ‘Buy One, Give One’ programme. For every cup we sell, we’ll donate one to a girl or woman without access to menstrual care product.

Which Ruby Cup size is right for me?

Take Our Size Quiz to find your perfect fit.

The two key factors to look out for when choosing the right cup size are:

- Position of your cervix (don’t know how to measure it? Check out the next question)

- Heaviness of your menstrual flow


How do I know if I have a high or low cervix?
Follow our guide to measure your cervix:

1- Wash your hands carefully
2- Squat on the ground, or lift one leg up onto the toilet seat or side of the bath
3- Insert your longest finger into your vagina
4- Feel for a round, raised circle with a dimple in the middle. It should feel like the tip of your nose — it’s most likely to be at the top of the front vaginal wall (closer to your belly button than to your back)

If you can insert your longest finger almost all the way up before touching it or you can’t touch anything at all, you have a high cervix.

How do I insert a Ruby Cup?

Always wash your hands thoroughly with soap and water before handling your cup.

Before inserting, you have to fold the cup. There are 3 folding methods you can try. Allow yourself some trial and error with each method to find the one that works best for you.

Now you have folded your cup, find a preferred position to insert your cup. Try squatting, standing with one leg up or sitting.

Gently push the Ruby Cup into your vagina with the rim first. Insert it in a horizontal, rather than a vertical, direction in line with your vaginal passage. You can use your other hand to separate your outer labia if that is helpful.

Push the cup inside until the body of the cup is all the way inside your vagina.

Once inside, the cup will unfold to create a suction that keeps it well positioned and prevents leaks. You may sense it popping open.

You can test that the cup is fully opened and has created a suction by trying to pull or wiggle the stem very carefully. It should not move more than a few millimeters. If you feel resistance when carefully pulling it, it means that the suction is created.

You can also run a finger along the base of the cup (not the stem). If you feel that the walls are still collapsed inside, rotate the cup at the base of the cup to reposition it to pop open.

You can also run your finger along the rim to check for creases. Wiggle the stem to remove any creases as these will cause leaks.

How do I fold a Ruby Cup?

There are different ways of folding a Ruby Cup before insertion.
Here are 3 of the most popular folding methods:

C fold: Squeeze the walls of the cup together and fold into a c-shape.

Punchdown fold: Pinch down one wall of the cup into its base so the cup forms a triangle shape.

7 fold: Squeeze the walls of the cup together and fold one top corner so the cup forms a 7 shape.

How do I remove my Ruby Cup?

1. Always wash your hands thoroughly with soap and water before handling your cup.


2. We recommend sitting when removing the cup as it works best when the muscles are relaxed but you can also squat or stand with one leg raised.

Locate the stem but don’t pull it. You can use the stem as a guide to locate the base of the cup.
If you cannot reach the base of the cup, you can gently use the stem to wiggle the cup downwards in the vagina until you can reach the base of the cup but do not pull. You can also use your pelvic floor muscles to help push the cup downwards as you wiggle the stem.
Once you have a grip on the base of the cup, press the walls of the cup inwards to release the suction.
Then gently pull the cup out with a firm grip and empty it.
If you’re having trouble removing the cup or you can’t reach it, take a moment to relax and try again. Remember the learning curve is completely normal.

What factors should I consider when choosing an eco-friendly period product?

When choosing an eco-friendly period product, consider:

* Impact on the planet: Look for products that generate minimal waste over time. Traditional disposables add up — a person may use over 10,000 disposable pads or tampons in their lifetime, many of which take centuries to biodegrade. Ruby Cup reusable cups and period underwear can last for years, so you’ll make way less waste than with disposables.

* Health & safety: Go for body-safe products without dyes, fragrances, or harsh chemicals. Ruby Cup menstrual cups and certified period underwear are gentle on your body.

* Comfort & fit: Pick something that works with your flow, lifestyle, and body. Cups are great for long wear, underwear is super easy and comfy — or use both!

* Cost: Sustainable period products cost more upfront but save money over time, as a cup can last up to 10 years and underwear up to 5 with proper care.

* Ethical impact: Choose brands that give back, fight stigma, and support menstrual health programs, like Ruby Cup’s Buy One Give One model.

What do people in the UK say about switching to a reusable period product?

Switching to reusable products like menstrual cups, period underwear, or reusable pads can feel different at first, but many users find it’s worth it. Here’s what people usually notice:

* Save money: After the initial cost, cups and period underwear last for years, so you won’t need to buy disposables every month. Many people recoup the cost within 6–18 months.
* Less waste: No more 20+ pads or tampons every month — hundreds over a year. Users love feeling good about reducing their impact on the planet.
* Comfort & convenience: Cups can be worn 8–12 hours and period underwear feels just like regular underwear. Many users find them more comfortable and discreet than disposables.


- Product Highlights:

* Menstrual cups: Life-changing for many — long-lasting, odour-free, perfect for sports, travel, swimming, or long workdays.
* Period underwear: Super easy to use, perfect overnight, and great for teens or anyone wanting fuss-free protection. Can be paired with a cup on heavy days.


- Things To Know:

* Cups can take a few cycles to get used to.
* Period underwear and pads need multiple pairs for full-cycle coverage.
* Drying underwear and pads may take longer in damp weather.


- Practical Tips from UK Users on How to Switch to Sustainable Period Products:

* Start cups at home on lighter days to practice insertion and removal. Experiment with folds and water-based lubricant if needed.
* Bring a small bottle of water for rinsing when out and about.
* For period underwear or pads, rotate 3–5 pairs, wash on cold delicate cycles, and avoid fabric softener or tumble drying to maintain absorbency.
* Consider combining products: cup for daytime, underwear at night, or underwear as backup on heavier days.
* Check return and exchange policies: Brands like Ruby Cup offer money-back guarantees on cups and panties.

Are reusable period cups approved by health organisations in the UK?

In the UK, menstrual cups aren’t officially classed as medical devices, so they don’t need approval from the MHRA, NHS, or other health organisations.

Instead, they fall under the General Product Safety Regulations 2005, which require that only safe products are sold and that customers receive clear instructions for proper use.

Many trusted brands also go beyond these requirements by following international safety standards (like ISO) to ensure their products are high quality and reliable, even though it’s not mandatory.

At Ruby Cup, safety and quality come first. Our cups are made from medical-grade silicone that meets strict European standards (UNI EN ISO 10993-1:2010) and EU regulations on volatile organic matter (VOM).

We also treat Ruby Cup as if it were a Class II medical device, voluntarily testing for biocompatibility, cytotoxicity, irritation, and sensitisation to make sure it’s safe for your body.

The medical-grade silicone we use is resistant to bacteria, easy to sterilise, and has a long history of safe use in medical products, making it perfect for menstrual care.

Where can I buy reliable reusable period products in the UK?

You can buy reliable reusable period products in the UK from Ruby Cup. Here's what makes them stand out:

* They offer both menstrual cups and period panties, so you can choose what’s right for you or mix both.

* They offer free shipping to the UK.

* They are a social business that fights period poverty: for every cup purchased, they donate one via their “Buy One, Give One” programme.

* When someone buys their period panties, 2% of the revenue is donated to a learning centre in Kisumu (Kenya).

* They provide a 120‑day money‑back guarantee on all their cups.

* They offer a 60‑day “Try & Love It” guarantee for first‑time period‑panty customers.

* Their cups are made of 100% high-quality medical‑grade silicone, reusable for up to 10 years, and are free from plastics, latex, toxins, and bleaches.

* Ruby Cup period panties are all OEKO‑TEX Standard 100 certified, meaning they’re tested for harmful substances. Plus, they're extremely stretchy, comfortable, and leak-proof.
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