Can you have period sex with Flex? How do you clean a period cup? Is Flex Disc reusable? Get the answers to all your Flex FAQs. 

Flex Menstrual Product FAQs | Flex® Sustainable Period Products

Menstrual care products are now considered qualified medical expenses for HSA and FSA accounts; this happened when the CARES Act was passed in March 2020. 

Are Flex products FSA or HSA eligible? | Flex® FAQ 

FAQ Item - Are Flex products FSA or HSA eligible?

Flex period products can be found in retail stores across the US, including Target, CVS, and Walgreens (with more on the way). 

Can I find Flex products in stores? | Flex® FAQ

FAQ Item - Can I find Flex products in stores?

We're committed to keeping our planet healthy while improving the lives of people with periods. Here's how we're doing it. 

What are your sustainability practices? | Flex® FAQ

FAQ Item - What are your sustainability practices?

Flex products are hypoallergenic, made without natural rubber latex, BPA, or phthalates, and safe when used as directed.

Are Flex products hypoallergenic? | Flex® FAQ

FAQ Item - Are Flex products hypoallergenic?

Flex period products are doctor-recommended and have not been linked to TSS. Use as directed for a maximum of 12 hours per wear.

Can I get TSS from Flex products? | Flex® FAQ

FAQ Item - Can I get TSS from using Flex products?

Every vagina is unique—so we designed Flex products to work well with a wide range of vaginal and cervical anatomies (including a high, low, or tilted cervix). 

Can I use Flex products with a high or low cervix? | Flex® FAQ

FAQ Item - Can I use Flex products with a high or low cervix?

Flex Products are safe for menstruators of all ages—just keep in mind that Flex Cup and Flex menstrual discs are inserted manually (with fingers instead of an applicator). 

Can teens use Flex period products? | Flex® FAQ

FAQ Item - Can teens use Flex period products?

Many of our customers have endometriosis. Flex menstrual discs, in particular, may help reduce cramping in some users. 

Can I use Flex products if I have endometriosis? | Flex® FAQ

FAQ Item - Can I use Flex products if I have endometriosis?

Flex products were designed to accommodate light to heavy flows, requiring less frequent changes and greater comfort than traditional period products—making them a great choice for folks with PCOS. 

Can I use Flex products if I have PCOS? | Flex® FAQ

FAQ Item - Can I use Flex products if I have PCOS?

A menstrual disc (like Flex Disc or Flex Plant+ Disc) is a great alternative to tampons for those with fibroids: Both discs hold as much as 5+ super tampons.

Can I use Flex products if I have fibroids? | Flex® FAQ

FAQ Item - Can I use Flex products if I have fibroids?

The only way to be sure that a cup or disc will work for you is to test it out. Talk with your doctor or Ob/Gyn if you have prolapse before trying a new period product. 

Can I use Flex products if I have prolapse? | Flex® FAQ

FAQ Item - Can I use Flex products if I have prolapse?

In all cases, we recommend contacting your healthcare provider or Ob/Gyn when trying a new period product if you have a diagnosed reproductive health condition. 

Can I use Flex products if I have uterus didelphys? | Flex® FAQ

FAQ Item - Can I use Flex products if I have uterus didelphys?

Nope! This is a myth. A menstrual disc or cup will not alter the vagina's elasticity or stretch it out over time.

Will a menstrual cup or disc stretch out my vagina? | Flex® FAQ

FAQ Item - Will a menstrual cup or disc stretch out my vagina?

Inserting a menstrual disc is way easier than you might think! Just pinch, insert down and back, then tuck the front rim up behind your pubic bone.

How do I insert and remove a menstrual disc? | Flex® FAQ

FAQ Item - How do I insert and remove a menstrual disc?

Menstrual cups and menstrual discs are both period products that collect menstrual blood (rather than absorb it) but they sit in two different locations.

What is the difference between a menstrual disc and a menstrual cup? | Flex® FAQ

FAQ Item - What is the difference between a menstrual disc and a menstrual cup?

One of our favorite benefits of a menstrual disc is mess-free period sex. Because a disc sits in the vaginal fornix, it leaves your vaginal canal free for penetrative sex. 

Can I really use a menstrual disc during sex? | Flex® FAQ

FAQ Item - Can I really use a menstrual disc during sex?

Find out the main differences between the three Flex menstrual discs and learn which one is right for you. 

What’s the difference between Flex Disc, Plant+ Disc, and Flex Reusable Disc? | Flex® FAQ

FAQ Item - What’s the difference between Flex Disc, Plant+ Disc, and Flex Reusable Disc?

All Flex menstrual discs can be worn for up to 12 hours. Flex Disc and Flex Plant+ Disc are single-use only; Flex Reusable Disc may be washed and re-worn after cleaning. 

How long can I wear a menstrual disc? | Flex® FAQ

FAQ Item - How long can I wear a menstrual disc?

Seeing some blood in the toilet when using the bathroom while wearing a disc is totally normal—and actually a feature we love! Learn more about hands-free emptying.

Why does my menstrual disc leak when I use the bathroom? | Flex® FAQ

FAQ Item - Why does my menstrual disc leak when I use the bathroom?

One of our favorite features of a menstrual disc is hands-free emptying: The ability to empty it in the middle of the day without removing it from your body.

What is hands-free emptying with a menstrual disc? | Flex® FAQ

FAQ Item - What is hands-free emptying with a menstrual disc?

The thumb trick is one of our favorite pro tips for menstrual disc insertion (including Flex Disc, Flex Plant+ Disc, and Flex Reusable Disc). 

What is the thumb trick? | Flex® FAQ

FAQ Item - What is the thumb trick?

When inserted properly, you shouldn't be able to feel a menstrual disc at all (with your vagina). Over 97% of users surveyed did not feel Flex Disc while using it. 

Should I be able to feel a menstrual disc when it's inserted? | Flex® FAQ

FAQ Item - Should I be able to feel a menstrual disc when it's inserted?

If it’s comfortable and you aren’t experiencing leakage, your disc is inserted correctly! It's normal to be able to feel the rim of your disc with your finger. 

When I put a finger in my vagina, I can still feel my disc—is it in right? | Flex® FAQ

FAQ Item - When I put a finger in my vagina, I can still feel my disc—is it in right?

While you might get a little bit of blood on your hands or finger, as long as you hold your menstrual disc level and pull it out slowly, removal won't be messy. 

How do I avoid making a mess when removing my menstrual disc? | Flex® FAQ

FAQ Item - How do I avoid making a mess when removing my menstrual disc?

If you're having a hard time removing your menstrual disc, don't panic! It can't get lost inside you. Learn how to use your pelvic floor to make your disc easier to reach. 

What should I do if I can't remove my menstrual disc? | Flex® FAQ

FAQ Item - What should I do if I can't remove my menstrual disc?

Lots of Flex Disc users have IUDs! Flex menstrual discs were designed to be IUD-friendly—they do not rely on suction to stay in place. 

Can I use a menstrual disc with an IUD? | Flex® FAQ

FAQ Item - Can I use a menstrual disc with an IUD?

Yes, you can wear a menstrual disc (including Flex Disc, Flex Reusable Disc, and Plant+ Disc) when swimming! Here's everything you need to know. 

Can I swim while wearing a menstrual disc? | Flex® FAQ

FAQ Item - Can I swim while wearing a menstrual disc?

Working out with a menstrual disc is a no-brainer. You can squat with ease, lift weights, crush that 5K, or sweat it out in hot yoga without worrying about leaks. 

Can I exercise while wearing a menstrual disc? | Flex® FAQ

FAQ Item - Can I exercise while wearing a menstrual disc?

Yes—you can pee, poop, whatever you need to do while wearing a menstrual disc. It will stay out of the way.

Can I use the bathroom while wearing a menstrual disc? | Flex® FAQ

FAQ Item - Can I use the bathroom while wearing a menstrual disc?

The way your menstrual disc will work with a tilted cervix or uterus (AKA a retroverted uterus) really depends on your unique anatomy.

Can I use a menstrual disc with a tilted cervix or tilted uterus? | Flex® FAQ

FAQ Item - Can I use a menstrual disc with a tilted cervix or tilted uterus?

Good news: a menstrual disc won't interfere with your body's production of natural lubrication in the vagina.

When having sex, will a menstrual disc prevent my natural lubrication? | Flex® FAQ

FAQ Item - When having sex, will a menstrual disc prevent my natural lubrication?

Flex menstrual discs, including Flex Disc, Flex Plant+ Disc, and Flex Reusable Disc, are totally safe to use with water-based lubricants.

Can I use lube with a menstrual disc? | Flex® FAQ

FAQ Item - Can I use lube with a menstrual disc?

With proper insertion, neither you nor your partner should be able to feel your menstrual disc during sex. 

My partner can feel my menstrual disc during sex—is this normal? | Flex® FAQ

FAQ Item - My partner can feel my menstrual disc during sex—is this normal?

No! Menstrual discs, including Flex Disc, Flex Plant+ Disc, and Flex Reusable Disc, will not cause period blood to go back up into the uterus.

Will a menstrual disc push my period blood back up into my uterus? | Flex® FAQ

FAQ Item - Will a menstrual disc push my period blood back up into my uterus?

Flex Disc is a disposable, single-use menstrual disc that provides comfortable period protection for up to 12 hours at a time. 

What is Flex Disc? | Flex® FAQ

FAQ Item - What is Flex Disc?

Both Flex Disc® and Softdisc® are menstrual discs owned and manufactured by The Flex Co™. Softdisc, formerly known as Instead Softcup, was acquired by The Flex Co. in 2016.

What is the difference between Flex Disc and Softdisc (formerly Instead Softcup)? | Flex® FAQ

FAQ Item - What is the difference between Flex Disc and Softdisc (formerly Instead Softcup)?

Never run out of period products again: Save time and money and sign up for a Flex Disc subscription. 

How does the Flex Disc subscription work? | Flex® FAQ

FAQ Item - How does the Flex Disc subscription work? 

Yes! You can purchase a single box of Flex Discs and still have it delivered right to your doorstep. 

Can I buy Flex Disc without a subscription? | Flex® FAQ

FAQ Item - Can I buy Flex Disc without a subscription?

Flex Disc has a capacity equal to that of 5+ super tampons, making the disc excellent option for users with heavy periods.

Will Flex Disc work for a heavy period? | Flex® FAQ

FAQ Item - Will Flex Disc work for a heavy period?

Flex Disc is made with 100% medical-grade polymers. It is not made with BPA, phthalates, or natural rubber latex.

What is Flex Disc made out of? | Flex® FAQ

FAQ Item - What is Flex Disc made out of?

To dispose, simply place your used Flex Disc in its wrapper (if you saved it), in an Eco Disposal Pouch, or wrap it in some toilet paper and place it in a regular wastebin. 

How do I dispose of Flex Disc? | Flex® FAQ

FAQ Item - How do I dispose of Flex Disc?

Flex Disc is not reusable. It is a single-use period product that must be removed and thrown away after 12 hours of wear.

Is the original Flex Disc reusable? | Flex® FAQ

FAQ Item - Is the original Flex Disc reusable?

When you remove your Flex Disc from its wrapper, you want to hold it so that the clear part (called the catch) is falling away from the black rim, creating a bowl shape. 

Which side faces up when inserting Flex Disc? | Flex® FAQ

FAQ Item - Which side faces up when inserting Flex Disc?

Flex Reusable Disc is a reusable menstrual disc that provides comfortable period protection for up to 12 hours at a time. 

What is Flex Reusable Disc? | Flex® FAQ

FAQ Item - What is Flex Reusable Disc?

Flex Reusable Disc features a patented insertion notch that is designed to make placement of the disc even easier. 

What is the insertion notch on Flex Reusable Disc? | Flex® FAQ

FAQ Item - What is the insertion notch on Flex Reusable Disc?

Flex Reusable Disc features dual-silicone construction that creates a soft and pliable catch coupled with a firm rim. Its patented insertion notch makes it beginner-friendly. 

What's the difference between Flex Reusable Disc and other reusable menstrual discs? | Flex® FAQ

FAQ Item - What's the difference between Flex Reusable Disc and other reusable menstrual discs?

The lifespan of Flex Reusable Disc varies depending on cleaning and care. As a general rule of thumb, we recommend replacing Flex Reusable Disc every two years.

How long does Flex Reusable Disc last? | Flex® FAQ

FAQ Item - How long does Flex Reusable Disc last?

Taking good care of your Flex Reusable Disc will help to extend its lifespan and keep it clean and fresh for years. Here’s what we recommend.

How do I clean Flex Reusable Disc? | Flex® FAQ

FAQ Item - How do I clean Flex Reusable Disc?

Flex Reusable Disc is great for any flow—light, medium, even extra heavy. It holds as much as 6+ super tampons

Does Flex Reusable Disc work with a heavy flow? | Flex® FAQ

FAQ Item - Will Flex Reusable Disc work for a heavy period?

Flex Reusable Disc is now available at CVS Pharmacy, Target, and Walmart stores across the USA.

Where can I find Flex Reusable Disc in stores? | Flex® FAQ

FAQ Item - Where can I find Flex Reusable Disc in stores?

Flex Plant+ Disc is a disposable, single-use menstrual disc made with 40% plant-based polymers. 

What is Flex Plant+ Disc? | Flex® FAQ

FAQ Item - What is Flex Plant+ Disc?

Flex Disc and Flex Plant+ Disc both fall into the ‘menstrual disc’ category of period products: Like a cup, they collect (rather than absorb) your period blood.

What's the difference between Flex Disc and Flex Plant+ Disc? | Flex® FAQ

FAQ Item - What's the difference between Flex Disc and Flex Plant+ Disc?

Our Plant+ Disc subscription gets you an eco-friendly period product at the lowest price—plus, pause or cancel anytime via your online account. 

How does the Flex Plant+ Disc subscription work? | Flex® FAQ

FAQ Item - How does the Flex Plant+ Disc subscription work?

Plant+ Disc’s medical-grade polymer is 40% plant-based and derived from sugarcane. This plant-based polymer captures CO2 from the atmosphere during production.

What is Flex Plant+ Disc made out of? | Flex® FAQ

FAQ Item - What is Flex Plant+ Disc made out of?

While Flex Plant+ Disc is made with a more sustainable, plant-based polymer, it is not a biodegradable or compostable product.

Is Flex Plant+ Disc biodegradable? How to dispose | Flex® FAQ

FAQ Item - Is Flex Plant+ Disc biodegradable? How to dispose

Flex Plant+ Disc is great for any flow, whether yours is light, average, or heavy. The disc holds as much as 5+ super tampons and can be worn for up to 12 hrs.

Will Flex Plant+ Disc work for a heavy period? | Flex® FAQ

FAQ Item - Will Flex Plant+ Disc work for a heavy period?

Flex Cup is a menstrual cup made with medical-grade silicone and featuring our patented pull-tab (it's the only cup in the world that removes like a tampon). 

What is Flex Cup? | Flex® FAQ

FAQ Item - What is Flex Cup?

Learn how to insert and remove your Flex menstrual cup (including pro tips from the Flexperts). 

How do I insert and remove Flex Cup? | Flex® FAQ

FAQ Item - How do I insert and remove Flex Cup?

Flex Cup is a menstrual cup designed with a patented pull-tab, offering easy, beginner-friendly removal. It's the only cup on the market that removes like a tampon. 

What's the difference between Flex Cup and other menstrual cups? | Flex® FAQ

FAQ Item - What's the difference between Flex Cup and other menstrual cups?

Flex Cup is the only menstrual cup in the world designed to be as easy to remove as a tampon, thanks to its patented pull-tab. Learn how it works. 

What is the Flex Cup pull-tab? | Flex® FAQ

FAQ Item - What is the Flex Cup pull-tab?

Flex Cup is available in two sizes: Size 01, formerly Slim Fit, and Size 02, formerly Full Fit. Find out which size is right for you. 

Which Flex Cup size is right for me? | Flex® FAQ

FAQ Item - Which Flex Cup size is right for me? 

Period cup insertion can take some time to master, but the main trick is to find a menstrual cup fold that works best for you. Here are three of our favorites.

Menstrual cup folds: How do I fold Flex Cup for insertion? | Flex® FAQ

FAQ Item - Menstrual cup folds: How do I fold Flex Cup for insertion?

Flex Cup can be worn for a maximum of 12 hours. After 12 hours, remove your cup, empty it out, clean it with warm water and a mild soap or cleanser, and then reinsert. 

How long can I wear Flex Cup? | Flex® FAQ

FAQ Item - How long can I wear Flex Cup?

With proper care, your Flex Cup can last for years. Most folks like to replace their cup about every 3 years, but silicone menstrual cups can remain in good condition for a long time. 

How long will Flex Cup last? | Flex® FAQ

FAQ Item - How long will Flex Cup last?

Lots of Flex Cup users have IUDs! However, we recommend consulting with your healthcare provider or Ob/Gyn prior to using a new period product if you have an IUD.

Can I use Flex Cup with an IUD? | Flex® FAQ 

FAQ Item - Can I use Flex Cup with an IUD?

Taking good care of your Flex Cup or Softcup will help to extend its lifespan and keep it clean and fresh for years. Here’s what we recommend.

How do I clean my menstrual cup? | Flex® FAQ

FAQ Item - How do I clean my menstrual cup?

Flex Cup is a great option for users with heavy flows. The Slim Fit holds the equivalent of 2 super tampons, while the Full Fit holds the 3 super tampons’ worth of period blood. 

Account, Orders & Subscription

How do I reset my password?

HAVE A QUESTION WE DIDN’T ANSWER?