Start a review
Thinx
3.73 • 106 Reviews
Thinx makes washable, reusable period underwear that is meant to replace pads and tampons.
What is Thingtesting?
Thingtesting is an unbiased place to research and review internet-born brands — because honest reviews help us all shop better. Learn more.
3.7
Average rating from 106 users
68%
Recommend to a friend
Thinx Reviews
17 days ago
Experience
I only have one pair at the moment but I do love them! I have the briefs and I’ll admit they feel a little bit like a diaper but I prefer it to pads or tampons.
Feedback
Maybe a bit pricey for single pairs of underwear. I hope to get more at some point. It’s just a bit more than I have to spend on single pairs of undies at the moment.
High qualitySize & shade inclusive Works really wellFit just rightSustainable products
Useful review?
24 days ago
Experience
I’ve used mine for years. Still use their very first generation and find them practical although they feel a bit like diapers.
Special occasion 💃
Useful review?
20 days ago
Experience
I love the concept, washable + reusable period underwear is my preferred method of menstrual care and I used to use these as my primary brand of period underwear. Unfortunately, the big Thinx lawsuit came out and had me doing a 180 on this brand. I'm not a scientist and I think the issue is much more complex than "chemicals are bad", but even doing a bit of light reading and internet research on the lawsuit had me questioning the marketing choices behind Thinx and how irresponsible it seemed (which is unsettling for something that is such a key healthcare device in my daily life).
Feedback
A lot more research, education, and transparency on the Thinx products would need to happen before I come back to the brand. It is a bummer because I did think the Thinx underwear were more absorbent + leak-proof than my current brand of period underwear, but obviously any potential adverse health effects are a non-negotiable.
Useful review?
a month ago
Experience
Man, I used to love Thinx. Used them every cycle, raved about them to my friends. But I think this latest lawsuit against them is pretty shocking--enough that I threw out all of my Thinx underwear and have gone back to other period products. Too bad!
Feedback
Do your research before you buy these--the folks who sued them made a pretty compelling case that there were harmful toxins in the underwear
Useful review?
4 months ago
Experience
Life saving! The first couple of days when aunt flow is in town can be challenging with long flights and/or long meetings. Having Thinx coupled with the flex cup for instance can save me from a rough day. No one loves an overflow. Also great for overnight if you want to get comfortable and just rock your Thinx and a T-shirt.
Innovative productWorth the money 💸
Useful review?
5 months ago
Experience
I stocked up on Thinx a few years ago when I ditched conventional period products. I bought 3 pairs, and they've held up well!
Feedback
I ordered smalls, and I'm normally a size 4, almost exclusively. I'd say these run a little small, and I probably wish I had mediums -- they seemed to shrink a little when I accidentally dried them in the dryer.
Innovative productWorks really wellFit just rightSustainable productsLove the brand's mission 💕
Useful review?
4 months ago
Experience
I really liked using my Thinx until I found out that they contain harmful chemicals. They are super absorbent and comfortable and easy to wash. I will probably keep using the pair I have but will not purchase any more.
Feedback
It would be really great if Thinx could change their material to one that does not contain PFAs. Not only have these chemicals been to health problems, but they also remain in the environment forever.
Useful review?
5 months ago
Experience
I’m obsessed with these. Since buying Thinx I haven’t bought period products in years. I feel great saving money and the planet (since it supposedly takes one sanitary pad 500+ years to decompose). Thinx are comfortable, leakproof, and so easy to use. I couldn’t recommend them more.
Feedback
Normally Thinx runs a 50% off Black Friday sale, which is when I usually stock up.
High qualityInnovative productWorth the money 💸Works really wellFit just rightSustainable products
Useful review?
6 months ago
Experience
As a concept, these are excellent. Mine worked really well- however, they began to fall apart after about a year of use. I also would call them completely leak proof.
Feedback
Make sure to pay attention to wash instructions. I would not use these as my sole method of protection, except on very, very light days.
Useful review?
a month ago
Experience
I love these undies and reach for them when my period comes. I love that the inside is black so you can’t see any staining and I have never had a leak. My only complaint is that the non corn material makes me sweat and is not that comfortable, think really thick bathing suit bottoms, but it may also be the cut is not that comfy (sport cut) and eventually wedges up my butt. The brief or traditional undies cut in cotton are my favorite. I’ve had these several years now and they are still going strong.
High qualityInnovative productWorth the money 💸Works really wellLove the brand's mission 💕
Useful review?