I Tried Thinx Period Panties- Play by Play Review


I’m not afraid to discuss all things period.  In fact, I do it all the time when I host my session at MommyCon!  I stand in front of a decently large crowd and show people how menstrual cups work while wearing uterus leggings (to scale) for educational purposes.  It was only natural that when a company came out guns a blazing with period panties– advertised to take the place of menstrual products completely- people were like “KIM!  WHAT’S THE DEAL WITH THINX?”

Like the menstrual cup, I wasn’t running towards Thinx period panties.  I referred to them in private convos as the “blood diaper and as a former tampon/current menstrual cup user they didn’t appeal to me AT.  ALL.

A photo posted by Kim Rosas (@kim_rosas) on

I finally ordered a pair because curiosity got the best of me and I wanted to form my own opinion for future questions about them.  My underwear, after using a $10 off referral code, cost a whopping $28.  I went with the high waist since these are great for under leggings for those of us with junk in the front.  If you’re good with thongs you can pay $24 ($14 with a $10 off coupon) but these have less absorbency. For your viewing pleasure I photographed my “granny panties” for the world to see.  #noshame.  There are other, much less expensive options available on Amazon including this highly rated pair from Anigan.  Even with $10 off you won’t be getting Thinx for a steal.

thinx underwear hanging to dry

According to Thinx their panties can be worn as a backup to other products or used alone.  Considering they have the amount of liquid each holds (the style I chose holds 1 1/2 tampon’s worth) on their website and packaging I decided to go all in and try it without other protection.  Here is a timeline of my day and how it went.  I wrote brief notes during the day and have pasted them here.

11:40 Finally showered, cup out, put on Thinx.  Day 2 of cycle and my heaviest day.

1:43 Bathroom and wiped- no residue on top layer but 3+ wipes to get all blood off.  Wishing I had a bidet.

2:30 Couch time. Can’t feel anything wet but have that sensation of stuff leaving my vag.  Praying not to bleed on my re-upholstered vintage couch.  

3:00 Bathroom.  Something on top layer- mucous blood clots about a nickel in size, dark around that where fluid was trapped inside, lots of blood each wipe for 3 wipes.  Pulled panties back on and they felt damp/cold but after a minute not noticed due to body heat.

5:10 Done. A good bit of mucous on top layer, quarter size. No leaks but could tell it was more than time.  Took off Thinx and went with a cloth liner plus handy cup.  

I made sure to take a photo wearing Thinx under leggings. Obligatory dirty mirror for realness

I had predicted on Facebook that I could wear a Thinx 5-6 hours based on their chart and my average Day 2 flow.  I was pretty spot on with my timing since I wore them for 5.5 hours!  #patsback I should have put some money on it!

I’ll admit that the panties were shockingly effective.  The high waist model were true to size and very comfortable- I actually washed them and wore them again as back-up with my cup for my last day.  I’ve worn the period panties from Lunapads and Thinx were much more breathable and they look like regular underwear which I love.  Not only do they look like regular underwear, but they are so trim that even hanging to dry no one would guess there were absorbent layers in the crotch. (Thinx should be cared for like cloth diapers in some ways… rinse after wear, cold wash, hang to dry and no fabric softeners.  You can still wash with regular clothing but storing in a reusable small wet bag would be ideal until wash day.)

Odor.  I almost forgot this part.  I did periodical sniff tests (fairly close to the underwear I might add…) and for my 5 hours even at the last hour there were no foul odors or anything that screamed I had been wearing undies soaked with menstrual blood for the day.  On the full day it was worn as backup it was the same story, though to be honest they probably had no menstrual blood because my cup and I are besties and it’s almost 100% effective with the exception of a few “wiping leaks.”

Thinx Underwear trimness example

The obvious drawback of Thinx (and pads of any kind) is that they won’t absorb the mucousy portion of menstrual flow, so it just kind of sits there until you go to the bathroom.  This is why menstrual cups will ALWAYS be my #1 choice for my period.  I’m not a pads person and they don’t have the comfort or convenience of cups.  The Thinx panties were effective as long, even longer, than if I were wearing a regular cloth pad so color me impressed.

Thinx are well suited for back-up, absolutely.  They feel no different than underwear while being worn so if needed or not it’s not a burden to wear them.  They would also be great for those spotty days (or for those who just have very light, spotty periods) when it’s not enough to wear a cup but too much to go without a liner.  Overnights?  Excellent.  Wear as insurance for your sheets.  I have worn thin cloth liners on occasion and plan to replace the day or two I wear those with a pair of Thinx since they’re so much trimmer and wear the same as regular underwear.  The idea that these would work full time is not ideal- changing a pair of underwear 5 hours into your day just won’t work.  If they’re only being used for backup then they can last the full day or perhaps the full day on very light days.  Their website is quite helpful in understanding how these work.

Here’s the tough part.  The price.  GULPS.  If you had told me in college that I would pay $28 for a pair of panties I wouldn’t have believed you.  It wasn’t even close to being in my budget.  Even now it’s not a price I want to pay but I see the benefits of the product enough that having 1-2 is a good thing.  A full set for a cycle?  I would need a big traffic increase on this blog to be willing and able to throw that down for panties.  They have a “buy one give one” model where for each pair of Thinx sold they donate to Afripads.

Packaging: After my first order for the review pair of Thinx I made several sales, enough to order another style to try.  My 2nd order with 2 pair of Thinx came in another style of packaging, one far less discreet.  While I don’t mind I’m sure others do.  If you mind, I suggest another brand such as Lunapanties or Anigan, both sold on Amazon that would ship in plain packaging without tampons or a uterus on it.

Thinx has devised a brilliant way of marketing their products that lets you refer people so if you want to buy Thinx and want more than 1 pair but just can’t right now you can spam your friends until they buy a pair and save $10 which gives you $10 in credits.  You can start with my code to save $10 on a pair and if I make sudden “THINX millions” after this goes live maybe I can order up a few for a giveaway.  I had been in discussions with a PR rep from Thinx to do a post and giveaway, we even had a phone call, but they never followed through with their plans.  For that reason I ordered my own but it’s been frustrating that my plans for an earlier review and giveaway were dashed.  Despite that frustrating experience the product is a good one and worth sharing.  

UPDATE to original post: After posting this review and selling over 500+ (at least) pairs of Thinx the company has changed their referral program.  Prior to this I was rolling in $10 Thinx gift codes that I used for giveaways and I gave them to friends who wanted to try Thinx.  I was the gosh-darn panty fairy.  I emailed Thinx when the codes really started raining because, really, how many panties can one girl use?  Not a few thousand dollars worth I assure you.  I inquired about the possibility of working with them on a buy-back program of codes (at a far reduced rate, not 1 to 1 ratio) since panties can’t pay the bills, ya’ll.  It was (and is) a tight time around here since I dumped my advertising network and large, home related expenses keep popping up, as they tend to do in groups.  I asked Thinx if they had considered a real affiliate network for those of us with larger audiences who would rather make a small % of sales versus money towards panties.  The reply was that they were actually discontinuing their program, and they didn’t elaborate.  $10 codes continued to roll in, upwards of 20+ a day at times.  Then, the emails changed from $10 in “blood money” to $10 off a single purchase of Thinx.”  I don’t know about you, but the chances of me making over 100 individual orders of panties are pretty darn slim.  This was even WORSE than panty money, and utterly useless.  As an added slap in the face the remaining 140+ $10 gift codes were suddenly completely disabled with no warning.  YES.  All that panty money I was rolling in vanished.  I EARNED that panty money (I recognize how silly that sounds).    I emailed Thinx once again, and asked why the codes had been disabled with no warning and for them to reactivate them. After all, I sold bajillions of panties for them.  Those codes, part of their program as they designed it, were earned and belonged to me.  After a bit of back and forth with a rep from Thinx replies stopped coming.


Now this post is on the front page of Google for Thinx reviews.  My website IS my job, every post I do adds to the money pool of how I pay for my son’s Pre-K, how I pay the credit card bills, how I buy groceries and help provide my family with the things we need.  I’m selling a ton of panties thanks to the hard-earned SEO that 7+ years of blogging has earned me.

My positive review of Thinx still stands of course, the panties work great.  You are certainly encouraged to use them if that’s what you want, but I did want to give some feedback on my experience with the COMPANY.   There are other options that are much less expensive.  Thinx didn’t invent the period panty, they just made it more visible with their advertising and marketing plan (that I have been part of by having a popular post, not by design, but as it happens.)

  • Kelsey Firestone

    You might want to try the Dear Kate company period panties. Their customer service is very wonderful to deal with and while Thinx uses a film as a barrier like a diaper, I have found the Dear Kate amazingly works just as well with some kind of patented completely breathable technology that just feels and looks amazing. It is miraculous the way it just doesn’t leak at all and yet doesn’t have a film in there.

    Capezio is using dear kate technology now in some of their dance leotard lines and I have tried them as well and loved the Capezio Dear Kate leotard. While Dear Kate may not spend as much on the marketing as Thinx, I have tried both and like the Dear Kate work even better … I don’t understand how it works but it is totally breathable and without a film, but I can tell you it totally works as well as Thinx but Dear Kate are so nice to deal with too.

    • Megan

      I tried 3 brands and DearKates were BY FAR the best! Way better than Thinx!

  • Jane Doe

    Good to know. I was going to try out a pair of THINX, not realizing there were other options out there, let alone less expensive ones. Think I will try one of those instead.

  • CS

    I am agreeing with all the other posts below! Thanks for the honest review, and transparency about your experience with the company. Not cool #Thinkx not cool

  • Suzana Toledo

    I bought a set of 3 to try out. The panties work great but I’m disappointed that the lace started to undo itself on the 4th use, even with the careful hand wash and clothes line that I have practiced. For the money I would expect they lasted.

  • Zenna crawford

    Great review!! I’m glad I found your work before visiting Amazon – I’m not a fan of companies that treat people so awful. You may have saved me some “customer service” runaround!

  • Whynotsoup

    Have you continued to use them? After several uses and washes of my thinx, I believe that they stink. Even though I follow directions they stink before I put them on. Did that happen to anyone else?

  • Ami

    I was SO CLOSE to buying a few pairs of THINX and trying them out, and your review was positive and got me over the edge of “this will be expensive” BUT once I got to the end of your review with the way the company treated you, I absolutely won’t buy from them! Thank you for your great and honest review. Id rather have a day of period guesserie every month, than support a company that treats a helpful person like crap/unfair. (No amount of third world charity can make a company good, if they don’t even care about the countries they are selling to and making that money from)