FAQ


What is Zero?

Zero is a menstrual cup made of soft silicone. It collects your menstrual fluid and has a capacity of 20ml or 25ml, depending on which size cup you have. 
Simply fold your Zero Cup, insert, empty and rinse your cup our every 8-12 hours, and reinsert. 

Visit the About page for a quick overview on the benefits of switching to Zero menstrual cup.

How is Zero different from a tampon? What are the benefits?

Zero menstrual cups work by collecting your menstrual fluid rather than absorbing it like a tampon would. 

Did you know one tampon holds about 5ml of blood, whereas even the S model Zero holds up to 20ml. That's four times as much fluid collected by your Zero Cup than one regular tampon. Therefore, instead of changing your tampon every 4-6 hours (per user guidelines), you can simply empty your Zero Cup every 12 hours. 

It is a reusable and eco-friendly item that promotes zero waste, and unlike tampons or pads, Zero is free from any toxins or additives such as bleach, fragrance, or acetone. 
If you consider that within one year, you'll have had 12 periods (on average), you can work out that Zero will cost you less than £1.50 a month. A box of 32 tampons costs £2.70 on average, so you will certainly have recouped the initial cost, and made a saving! 

You can read this blog post that settles the debate: Zero Vs Tampons & Pads.

Is it messy?

Not at all - once you've mastered insertion & removal, you will experience a leak-free period!

Many women who use a menstrual cup report feeling cleaner & fresher for longer compared to tampon or pad users. At first, you will need to practice using your Zero Cup; this may be messy if you are not used to getting "up close and personal" with your anatomy. Once you've practiced for a few cycles, it will be a breeze.

How does Zero stay in place?

Once you've inserted your Zero Cup, it will be held in place by your vaginal muscles. It's important to select the right size Zero Cup: if it is too small, you may experience leaking. Fold and insert like you would a tampon, aiming towards your tailbone. It will pop open once inside of you. You'll need to check that the cup is fully open to ensure that you do not leak - this can be done by twisting the base of the cup around, squeezing your vaginal muscles, or by running a clean index finger around the rim of the menstrual cup. A light suction seal is formed once the menstrual cup has opened fully, and this will prevent leaking.

Do I need to remove Zero whilst going to the toilet?

Nope - you can keep it in when either urinating or defecating. Zero is designed to be worn for up to twelve hours - with this in mind, many users empty and rinse their cups when they wake up in the morning and before they go to bed. You do not need to remove your cup every time you use the toilet.

What is Zero made from?

Zero Cup is made from 100% soft, medical grade silicone. It is completely safe and poses no health risks. The cups are registered with the FDA and have been tested to comply with ISO standards.

How do I store my Zero Cup?

At the end of your cycle, it is recommended you sterilise your Zero Cup by boiling it in water for 6-8 minutes. Allow your cup to air dry, and then store it in the cotton bag provided. 

The discreet cotton bag makes it ideal for storing your cup in your bag, so you'll never be caught out! Do not keep your menstrual cup in an air-tight container, as this will encourage bacterial growth.

How often will I need to replace my Zero cup?

The great news is that your Zero Cup can last up to ten years if correctly cared for. However, you will need to upgrade to the larger Zero Cup if you give birth.

It is normal for your Zero Cup to become discoloured over time - you can boil your cup or use baby-bottle sterilising tablets (such as Milton) to help remove staining. Some users choose to replace their cup every year, others do not for the full ten years - it is a personal preference and you'll have to see what works for you.

As it is worn internally, it is essential to follow the cleaning guidelines. It is important to inspect your cup regularly for any tears to the silicone - if there are any changes to the shape, texture, or smell of your cup after sterilisation, it is considered damaged and you will need to replace your cup. 

I've recently given birth - can I use Zero Cup?

Congratulations! Unfortunately, it is not recommended to use a menstrual cup (or tampons for that matter) for 6-8 weeks after you've given birth. This is because after giving birth, your vagina needs to heal and is more prone to infections. In the meanwhile, you should use maternity pads, sanitary towels, or washable pads. You are advised to wait until your 6 weeks post-natal examination and speak with your practitioner before using a menstrual cup. 

I'm menopausal, can I still use Zero?

As your Zero Cup can be used for heavier or lighter periods, it is an excellent choice of feminine hygiene product. You can monitor any changes in your flow using the markings on the inside of the cup, too! 

You won't need to have a whole host of disposable products for varying stages of your flow. Zero Cup is reliable and convenient and you'll only need one, no matter how unpredictable your menstrual cycle may become. 

Think it's too late to make the change? Bear in mind that your Zero Cup will pay for itself within the first 5-8 months!

Can I use a menstrual cup with an IUD/coil?

Yes, you can use your Zero Cup if you have an IUD inserted. It is recommended that you wait at least three menstrual cycles after getting your IUD fitted before using your Zero Cup, as it may dislodge the IUD. 

Speak with your gynaecologist about trimming the strings as short as possible, so it does not interfere with your Zero Cup. 

When you wear your Zero Cup with an IUD, ensure that there is plenty of room between your cervix and the cup. Zero should be worn as low down in the vagina as possible, and make sure that you release the suction seal before removing your Zero Cup for emptying & cleaning. After each period, you should check your cervix to feel for the strings from your IUD. 

If you suspect that your IUD may have been dislodged or is causing you any pain, visit your gynaecologist and use another method of birth control (such as condoms) in the meanwhile.

Can I use a menstrual cup alongside my NuvaRing?

Using your Zero Cup during your week break from your NuvaRing is completely fine! However, if you find that you are still menstruating after your week break, it is not recommended to insert your Zero Cup alongside your NuvaRing, as this could cause interference with your contraception.

I'm a virgin, can I use Zero Cup?

If you are a virgin, you can still use Zero. Bear in mind that using a menstrual cup may stretch or tear the hymen. If you have any strong personal or religious views towards keeping your hymen, then use Zero with caution.

Is it safe to use Zero if I have endometriosis or PCOS?

Generally speaking, it is fine to use a menstrual cup if you have PCOS or endometriosis. Zero collects up to four times as much menstrual fluid than a regular tampon, so you won't have to empty your cup as often as you would need to change a tampon. In addition, Zero Cup has measuring lines on each cup, so it may be useful for you to keep track of your flow. 

As with any vaginal condition, we would recommend you speak with your gynaecologist before using a menstrual cup.

I have a tilted uterus - is Zero right for me?

It is usually fine to use Zero Cup if you have a tilted uterus. It may take you a little longer to find the best position for your menstrual fluid to be collected, so you may wish to use a pad as additional protection at first.  

Tell me more about the risks of menstrual cups & TSS?

Toxic Shock Syndrome (TSS) is a rare, though very serious and sometimes fatal bacterial disease. Currently, there has only been one reported case of TSS linked to menstrual cup usage. 

Symptoms of TSS mimic flu and include: high fever, dizziness & fainting, vomiting, diarrhoea, and/or a rash similar to sunburn during your period. If you experience any TSS symptoms, remove your menstrual cup and seek out medical advice immediately. 

In order to reduce your risk of developing TSS, ensure that you sterilise your Zero Cup often: before your first use, the beginning of your period, and at the end of each cycle.

You should always wash your hands before & after handling your Zero Cup, and maintain good hygiene - remember to remove, clean, and reinsert your Zero Cup every 4-8 hours. 

If you have ever had TSS, do not use any internal feminine hygiene products, including Zero Cup.

My cup is stuck - what should I do?

Stay calm & breathe!

Your Zero Cup is held in place by your vaginal muscles - if you are panicked and tense, it will be more difficult to remove.

You can take comfort in knowing that it is not possible for your Zero Cup to get "lost" inside you. With this in mind, if you cannot reach your menstrual cup, you can do a number of things to help ease your Zero Cup down.

Firstly, ensure you are position in a comfortable seated or squatting position. Next, use your vagina muscles to "push down" your Zero Cup: a sequence of slow and gentle pushes will help to ease the cup lower.

You should now be able to feel the stem or the base of your menstrual cup. Pinch the base of the cup in order to release the light suction seal. Slowly rock the cup from side to side to help ease it out in its upright position.

Help - I'm leaking!

You may experience leaking if your Zero Cup is not worn correctly. It must be positioned as low as possible in the vagina for it to effectively collect your menstrual fluid.

Once you have perfected the positioning of your menstrual cup, you should ensure that a suction seal has formed between your Zero Cup and your vaginal walls. This can be checked in a number of ways:

  • Pinching the base of the your Zero Cup (not the stem) and rotating it a few times to ensure the seal has formed.
  • Clenching your vaginal muscles a few times will help to position your menstrual cup correctly.
  • Running a clean index finger around the rim of your Zero Cup to ensure it is fully open and that your cervix is positioned within the cup.

Finally, ensure you are wearing the correct size Zero Cup. If it is too small, you may experience leakage. If you are still leaking after three cycles, please contact us for further assistance.

Can I use my Zero Cup whilst in a public bathroom?

You definitely can - either you can rinse your cup out with bottled water, or simply wipe the excess blood off of your cup and give it a more thorough clean at the next available opportunity.

It is worth remembering that with a 20ml - 25ml capacity, you may not need to empty your cup out as often as you think. Many users clean their cup every 12 hours (before bed and again in the morning). Why not read through the Cleaning Instructions for tips & tricks on caring for your Zero Cup?

Can I sleep/exercise/travel whilst using Zero Cup?

Absolutely! Zero Cup offers you complete freedom and peace of mind! Many users report a better nights sleep (less chance of leaking). Zero Cup is much more convenient to use when you're on the go; be it a busy day out, exercising, or travelling abroad.

Should I trim the stem of my cup?

It is only necessary to trim the stem of your cup if it is protruding from the vagina once correctly inserted.

Some users trim the stem, others cut it off completely, and others leave the stem at full length. It is a personal choice, so you will need to see what works best for you.

Before you trim the stem, make sure you are confident removing your menstrual cup without using the stem. Also, if you cut the stem in increments, you may find you don't need to cut it off completely.

My cup has become discoloured, what should I do?

Don't panic! It's normal for your menstrual cup to become discoloured over time. As long as you are sterilising your cup thoroughly before and after each period, your Zero Cup will remain in good condition.

To remove any staining, you can use baby-bottle teat sterilising tablets (such as Milton). You can also use interdental brushes to clean out any staining from the suctions holes.

To prevent future staining, rinse your cup with cold water to remove any excess blood, then clean using hot water before re-inserting.

It is important to inspect your cup regularly for any tears to the silicone - if there are any changes to the shape, texture, or smell of your cup after sterilisation, it is considered damaged and you will need to replace your cup.

Is Zero safe to use with lubricants?

You can use a water-based lubricant with your menstrual cup. Do not use a silicone or oil-based lubricant, as this may cause damage to your cup.

Can I keep my Zero Cup in during sexual intercourse?

It is not recommended that you keep your Zero Cup in during intercourse. An added benefit of Zero vs a tampon is that there is no string hanging out of your vagina, so you can be completely naked, and no one would know you're on your period.

Some users keep their Zero Cup in for oral sex; however, if you have penetrative intercourse, you will need to remove your menstrual cup beforehand.