Flex reviews and discussion

4.1

76% of reviewers would recommend to a friend

Reviews mention

  • Comfortable all‑day wear
  • High‑capacity protection
  • Cramp‑reducing experience
  • Period‑sex compatibility
  • Leakage on heavy days
  • Rigid disc rim discomfort
  • Tricky insertion and removal
  • Messy emptying process

Flex earns largely positive reviews for working reliably once the learning curve passes, with users praising comfortable, all‑day wear, high capacity, and the option for period sex, but critiques call out leakage on heavy days, tricky insertion/removal, and discomfort with the disc’s rigidity or the cup’s pull tab. Reviews note reduced cramps and forget‑it’s‑there comfort as strengths, while staining, mess during emptying, and confusion for first‑timers temper the experience.

AI summary based on Thingtesting reviews

31 reviews and posts

  • I cannot emphasis enough how INCREDIBLE the flex menstrual disc is! I used to use pads (light and heavy) and period underwear exclusively. I tried tampons a couple times but it was not comfortable or user error. These however are intuitive to use and the diagram is super helpful. I have pretty heavy bleeding for the first 2-3 days of my cycle. I now have so much confidence wearing this at work with a pad as extra protection. I work long shifts and it can be hard to change a pad in a timely fashion. It also helps with period cramps! I usually buy a large pack and will give one to a friend to try it out without shelling out $$ because I genuinely love this product so much!

  • There is absolutely a learning curve with these disposable discs. I got for night time as super tampons just were not cutting it for me. Some people have mentioned leaks which hasn’t been an issue for me so far.

  • I've only tried the disposable period discs and really loved them. I find them more comfortable than tampons. However, they do leak once full and can be confusing to use when trying for the first time.

  • My friend shared an ad with my on IG about the discs. I wasn’t sure if they were going to work for me but man am I soooo happy I tried them. The discs literally changed my life. I’ve got endo and a really heavy flow. The disc gets me through an entire day without having to change it bc you can wear it for 12 hours. I’ve also figured out how to empty it during the day without taking it out. It’s super cool. My cramps have reduced and I just love not feeling like something is clogging me up during my period. I’m actually upset at myself for not knowing about the discs sooner. It did take me a week to figure it out but their customer service helped me with like standing on my tips toes to remove. Anyway, haven’t looked back and Ive officially said goodbye to tampons and pads forever. Best decision ever. Also I love that they use inclusive language.

    Feedback

    I was going to say make a reusable disc, but they just did! Pre-ordered mine already. Glad they switched to eco friendly packaging.

  • Tried the disc after being advertised to on Instagram so many times. It was relatively easy to insert and remove.

    Feedback

    LEAKS. No matter how I messed with it and read the instructions over and over again, it would always leak. Also not sure about the sustainability of this product, seemed like a lot of plastic & rubber? Wasn't sure this was better in any way compared to traditional period products.

  • Love these! They’re so easy to pop in and just go about your day without having to worry about.

    Feedback

    Can be difficult to remove.

  • I didn't have any luck with the discs, but the cup is great! I didn't expect to be a believer in the cups but got them on a whim at Target and have loved it ever since.

  • Definitely experienced leakage and had trouble both inserting and removing the product. I love the concept of this product but I just don't think it is for me.

  • I didn't find the discs to be leakproof as they claimed to be and I found removal to be both more effort and mess than it was worth but this is just my experience.

  • I personally found the discs very rigid and uncomfortable. I switched to a different brand....which is so much more comfortable

  • Resisted converting to this type of reusable menstrual product for far too long. Finally got a Flex Disc a few months ago and I wish I had done it sooner- it's quality reusable silicone, comfortable, and most importantly, holds a lot. As someone with a heavy period, I only need to change it once a day (which is incredible) and it's so comfortable you can't feel it at all. Just rinse with sensitive soap and boil for 10 mins in between periods and you're good to go. No more tampons with who knows what chemicals in them that irritate, are bulky to carry around, and EXPENSIVE. I'm super happy with Flex. The only complaint is some staining that I can't remove (even with their own soap products), but whatever. I'm super grateful to have found this!

  • The black rimmed menstrual cups are amazing. I can't feel them the same way I can the thicker products. It is reusable for a cycle and then you can through it out. It works really well and is great for swimming. Can also be used during sex to limit leakage.

  • I tried the Flex Cup with the pull tab for a few months, and unfortunately I had switched to a drugstore alternative. The cup itself works fine; the material is thicker than other cups so it might be harder to bend and maneuver into place, but once its in it stays in place. The main, glaring issue is the pull tab. First, the tab sticks out very uncomfortably; the website recommends tucking it between the cup and the wall of the vagina, but it will immediately pop back into place after movement. The actual pull mechanism caused me a lot of soreness and pain; the idea is that by pulling the tab, it breaks the vacuum seal and allows the cup to come out, but it would take a decent amount of force to actually break the seal, so the cup would tug the walls and my cervix with it before the seal would break. Once I switched to a generic cup from a local drugstore, I realized just how badly an experience I had.

    Feedback

    I'd potentially reconsider the design of the pull tab, maybe make the cup less thick so it's easier to break the seal.

  • Absolutely obsessed with this concept. I finally found the easiest way to manage a difficult menstrual cycle. Flex discs are comfortable and disposable, less wasteful (longer wear times), cuts out the "what am I putting into my body" concerns, and are easy to learn how to use. They're a little spendy, but I'll never go back.

    Feedback

    One way to improve? Provide bigger packs in the subscription option with larger discounts for loyalists.

  • I LOVE MY FLEX DISC. Hands down the best period product I've ever used. Now that the flex disc comes in a reusable silicone version, I never have to find a better period care alternative. The disc is much easier to use than any other menstrual product out there. I've dealt with tampons and Diva cups and while tampons are fine, there are so many more benefits to using the disc. Once it's in, it's in for the day. The learning curve for the disc is much easier than menstrual cups and you don't really feel it once it's in.

    Feedback

    There have been a couple times I didn't empty the disc into the toilet the way you're supposed to when you go to the bathroom (hands-free by the way!) and it kind of leaked out all at once. That was really scary a couple times but I think that's the only learning curve that's difficult to master with the disc. If your flow is heavy, make sure you know how to empty the disc into the toilet throughout the day or it could result in majorly unpleasant leakage...

  • Flex completely changed my period experience! I have tried all of their products and was using the larger cup before switching to the disc. It does take some getting used to in terms of how the disc or cup sits inside you, so expect a few leaks while you learn. BUT once you get it, it is radical!

  • I wasn't ready to commit to a cup but wanted to try out alternatives to tampons. This is my favorite period product! So comfortable I can forget its there with no leakage.

  • Total period game-changer! I started with the disposable disc and was worried it wouldn’t work properly as I have a tipped uterus, but it started in place perfectly and was leak free all day! The only thing I don’t like about that one is the catch is a very crinkly texture which is a weird sensory thing for me. I bought the reusable silicone disc and the cleaner to use regularly and it’s amazing. I’ve noticed less cramps, no leaking, less need for my period underwear, and more comfort overall during my period. You can empty it throughout the day hands-free and it can be worn for up to 12 hours. Haven’t attempted the “mess free period sex” yet but I could see it being successful ;)

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  • The flex menstrual disc has changed my periods! After going off of hormonal birth control, I struggled to find products that I feel confident with. I've always leaked with tampons, and the flex menstrual cup (along with other brands) didn't work for me. I received a free disposable disc when I tried the cup, and it was so easy and secure that I bought the reusable one and haven't looked back!

    Feedback

    The disc probably isn't great if you don't have access to a private bathroom with a sink right next to it.