Thinx reviews and discussion

Life-changing! As someone with a really heavy flow, it's incredible to wear these as I sleep without any fears of the leaks or stains that I always got while using pads. Super comfortable & they're absorbent enough to wear all day.

I'd been buying their products for my teen. I recently purchased a few more but newer ones don't have lining. I'm very disappointed and won't go back.

I used to love this brand. Had a lot of their period panties. But then I found out there was toxic materials in them and threw them all away.

I wish they had something like this when I was in high school. However, the PFAs lawsuit is really a letdown and the reason I can't recommend them to others. The concept is amazing but the execution is lacking.

If you are reading this you're probably wondering if period panties work. Answer: YES. Probably one of the most useful new products I've started using in the last 5 years. I use the period panties during the night, and would never switch back to anything else. High-waisted models are the comfiest imo. A huge plus for Thinx being available on the HSA Store.

I think the underwear is a good product for periods for soakage but the waistbands are horrid. 10 out of 10 pairs have a broken and frayed band after a year. Again, the absorption still works fine but the band quality is horrid

I really want to love them, the concept would be great. my period is extremely heavy that i have to wear a pad with these on and I still bleed through. theyre okay for when you are spotting and have lighter days, but for the price I don't know if theyre the best investment. I still get rashes when wearing them, and I still go through at least 2-3 pairs a day.

Messy and gross. Menstrual products are generally designed to limit mess, but these underwear constantly felt damp, couldn't wash/dry properly. They would also leak, and so are only appropriate for the last days of your period/spotting. I wish this concept could work, but it's functionally a reusable adult diaper.

When I first got these I was so excited about not having the use a tampon or pad at night. I was worried that I would feel like I would have a diaper on, but it really doesn’t. Unfortunately new research has come out that says there are PFAS in Thinx and there was a huge lawsuit. Wouldn’t use them again

Love the idea. Wasn't a huge fan of them as an actual product. I felt like I could never get them clean, and they started fraying pretty quickly.

My flow is pretty heavy and I have constant paranoia during my cycle. I bought thinx specifically for Machu Picchu (backpacking four days) and wow, when I say it held up and I didn’t have to worry about anything on the trek speaks words. It’s been a year and it has transformed the way I go about my cycle.

I used it only on heavier days, which made my first few days comfortable. I'm used to handwashing and I didn't have an issue with washing it. After a couple of years, I noticed they don't work as well as they used to, and recently I found out they have PFAS chemicals... which made me really sad. I switched over to The Period Company's washable period panties and it's been a good alternative.

It's a shame they contain forever chemicals because I found them to be so useful :(

It works!

These are okay. I've been using Thinx for several years now as a tampon back up, but I don't trust them to contain my flow. They seem to spread beyond the edges even with styles that are designed to absorb more fluid.

wouldn't purchase again. the seams of the underwear dug into my thighs, which made them uncomfortable to wear. after one wash, i noticed that they lost their shape and the elastic wore down.

I'm giving Thinx 2 stars because I really liked the product (functional, eco friendly, easy to use) but with the PFAS controversy (the underwear may or may not contain the harmful substance) I haven't worn them since. I wish the brand would put out information debunking the claim if it doesn't contain PFAS.

I have some cotton thinx in the shade of my body which is exactly the extra security blanket I need when wearing a white skirt or pants or dress on one of the later days of my period. It’s not super safe for the early days and I’ve had some leaks but that’s my bad because it does say on their website it’s only for lighter flow days. I recently ordered the super cotton pants in black and sleep shorts in grey and black and am excited to try them out :) big plus is that out of all the period underwear I’ve bought this one fits the best and is most comfy! Edit: I love (!) the heavy flow thinx! I've been wearing them (cotton boyshorts and cotton sleep shorts) for the heaviest part of my period the last few days now and it still blows my mind that it feels nothing like when wearing a pad. You know when you can feel everything down there and you're just like "where on earth is the closest bathroom I hate this?" It doesn't feel like that at all, I don't even notice that I'm on my period when I wear these. The one disappointing instance was when I tried wearing the boyshort overnight (I only bought two sleep shorts so I thought on the third night I'll just use a boyshort since I usually don't have much flow at night anyway) and unfortunately due to me moving around it did leak through the sides (luckily not onto my sheets but onto the outside of the boyshorts) - but I guess that's my lesson to only use the sleep shorts to sleep. Overall - 9/10, still a big big fan! Will purchase more :)

I’ve used mine for years and still use their very first generation and find them practical although they feel a bit like diapers. I change them up with cups and can’t go back to liners or tampons.

Life changing underwear! Yes they hold everything AND keep you dry and comfortable. Thinx has many different types of fabrications and flow capacities that allow you to wear it all day. I have over 10 pairs and have been wearing them for 8 years. I can't compare them to other menstrual underwear, but compared to tampons, pads, and cups, this is the most comfortable option. Shout out to their sporty fabrication that is perfect to work out in!