Flex
4.1
Flex earns polarized reviews: the brand’s discs and cups often work exceptionally—comfortable, long-wear, high-capacity protection with hands‑free emptying and the option for period sex—yet recurring complaints cite leaks on heavy days and tricky removal. Reviews of Flex highlight easy insertion for many and thoughtful reusable silicone options, but note rigid rims, a finicky pull‑tab on the cup, staining, and a learning curve that can be messy for beginners.
AI summary based on Thingtesting reviews
Ask questions or start a discussion
Shop Flex
About
This page has been
Photos
Join to earn a 15% reward
Join Thingtesting to earn a cash-based commission when you shop and review Flex using our link.
Articles
Reviews and Posts
View all 33
10d ago
The thing I hate the most about reusable menstrual products is having to keep them clean. This cleanser is awesome because I know it won't harm me or the products and it's super easy to use and will probably last a long time.
Verified purchase
10d ago
I was unsure about using a disc at first because I've been using a cup for a really long time. I was worried it would have a steep learning curve but I found the disc to be way easier than a cup. It was also less messy and I couldn't feel it at all. I highly recommend using a disc over a cup and having a reusable one means you never need to buy tampons again.
Verified purchase
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 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!
Alternatives
What is Flex?
Flex creates alternative period care products that prioritize comfort.
In their own words
Flex was created to give those who menstruate products that prioritize comfort, support an active lifestyle, and are better for the environment. Our innovative products solve real period problems, like cramping, odor, and unnecessary waste. Flex Disc, Flex Cup, & Flex Reusable Disc benefits: Body-safe and hypoallergenic Non-toxic pH-friendly Not made with BPA, phthalates, or natural rubber latex Lab-tested and free of lead, arsenic, & PFAS (forever chemicals) Not linked to TSS 12-hour leak protection Easy to insert & remove
This page has been
U.S.
Socials
Venice, California
Lauren Schulte Wang
FDA registered. Flex Cup and Flex Reusable Disc are zero-waste products. Flex Disc produces 60% less waste than traditional products.
