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FAQ - The Basics

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. As you insert Zero folded, 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 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. 

It is kinder on your body, the environment, and your wallet! Why not read more about the benefits of Zero?