We independently review everything we recommend. When you buy through our links, we may earn a commission. As an Amazon Associate we earn from qualifying purchases. Learn more ›
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
If you're not a student, there's also free 30-day trial of Prime.
Join 81+ users reviewing THINX. Read verified ratings and real customer experiences on shethinx.com before you order.
Related articles
1.5 / 5
Average user rating
81
Total reviews
Why these reviews matter
We aggregate and refresh feedback continuously so you can gauge real customer experience and service quality for shethinx.com.
Brands may not incentivize or pay to hide reviews.
Read real experiences from customers of shethinx.com.
Brands may not incentivize or pay to hide reviews.
Write a Review
Please sign in to leave a review for this product.
Aaron Asbury
January 5, 2026
Thinx has raised their prices while lowering their quality. When I left a negative review on their website on a product I purchased, they didn't post the review alongside the positive ones. They are deliberately silencing bad review on their site, so while they have a good return policy, they are not trustworthy.
Emma
December 27, 2025
Contacted them because I heard about the lawsuit in the US because of dangerous material found in their underwear. They didn’t response and ignored my messages for some time, then they sent me avoidant messages ignoring the subject. Dodgey company. If there was nothing untoward going on they could have reassured me. Their customer service is awful.
Dakota Whitehorse
December 19, 2025
Good idea, but the product didn’t fully meet my expectations
Mawmaw D
May 21, 2025
Beware of this company. Think makes it nearly impossible to return items. They place barriers to accessing a human to help with the return process and you have to wait for approval for a return. My approval never came and I went in circles with a chat bot. I eventually put the underwear in the trash where it belongs. Didn't realize until after I purchased that Thinx had a class action lawsuit against them for putting poisonous chemicals PFA's into their products and lying to consumers about it.
V
July 22, 2024
Given the recent findings about tampons & pads I came across Thinx and after looking at their products I decided to place an order, only to find out that they settled a lawsuit in 2023 that had to do with their products containing PFA’s. I went to cancel my order, only a few minutes after I placed it, only to be told that they can’t cancel orders because their team has such a quick turn around time and they want to get my order to me as soon as possible. (This is completely false. It took them three business days to process and ship out my order. Five days all together, during which time they had plenty of time to cancel my order.) I got my order and since I knew I already wanted to return it I went to their website and immediately started the return process only for the website to tell me that three of the items that I ordered “do not meet conditions for return”. There’s no explanation as to what that even means and how they determine that, especially since I literally just recieved my order and haven’t opened any of the items in the order. Contacted their customer service and am waiting for a response but at this point I’m fed up and want nothing to do with this company ever again. Don’t order from them. Don’t trust them.
Miriam Fisher
October 24, 2023
The underwear itself is ok, but the selling process is deceptive. I ordered sale items and their website changed my size sneakily as the page went from choosing to cart, so I wouldn't notice. I wear an L in their size and now have very expensive 1x and 2x underwear that's totally useless for the purpose for which it is designed because it's like clown wear. They're claiming I ordered this on my own: I would never go from an L and skip past XL AND X to get to 1X and then 2X? Who knowingly orders four sizes too large for them?
kimberly lippington
September 3, 2023
about a year since i started using these and they basically became regular underwear. no absorption even tho it's the max absorbent ones. also with the lawsuit and horror stories, there's no reason to give this company any money. i'm now testing out other brands of period underwear such as modibodi and the period company
Corinne Wingett
June 15, 2023
Read ANY and ALL fine print. I ordered sale items and I ordered a bunch and different sizes and styles. ALL were too big. My invoice in the box and email said I can return within x amount of days so I tried to send them back for an exchange only, not refund. I was told I couldn’t return sale items. I was so frustrated because I didn’t see that information anywhere and my invoices stated otherwise and no one cared. That was not ok. Of course with the class action lawsuit I’m thankful they didn’t fit.
TMM
February 20, 2023
I’ve tried contacting this company for nearly a month, to get answers from them about the class action lawsuit they are involved in, but they refuse to reply. They are being sued in federal court for false advertising and using dangerous and toxic chemicals in their products, in spite of advertising that nothing toxic is used. I have been asked to join the class action suit, but am choosing a personal lawsuit instead because I have worn their products for years, trusting that their advertising was truthful. Who knows what risk I have incurred or what disease I might end up with because of their products!! Buyers need to be aware that this company is currently involved in a class action suit in federal court, and avoid using this company’s products!
Megan Feller
February 8, 2023
Like many women, I was misled by their marketing. Who knows what damage I’ve done to my body wearing underwear with PFAs in it. I have Polycystic Ovarian Syndrome and never thought my underwear could have been the cause. And I washed my regular clothes with these too, likely contaminating everything with cancer-causing PFAs. Thinx should be shut down. They stain and stink almost instantly, besides. I’m so upset that I bought these underwear for years. Such a disappointment.
Popular Searches
Best Products
Categories
© 2026 RetailCoupons.com. All rights reserved. Time Zone: Pacific Time (US & Canada).