I’ve always considered myself an ingredients-conscious shopper. Cumulatively, I’ve spent hours pouring over food labels at my local Whole Foods trying to determine the best cereal option or the perfect peanut butter. I’ve overhauled my beauty routine to banish harmful additives like parabens and sulfates, and I’ve even gone so far as to switch out my tried-and-true antiperspirant for a natural aluminum-free alternative.

But until a few months ago, I’d never given a second thought to the ingredients in my tampon.

For as long as I can remember, I’ve used the same pink box of tampons. It was the brand my mom stocked in our house when I was a teenager, and what I continued to buy out of pure habit once I went off to college and was responsible for my own drugstore runs. While I’d never stopped to think about what was in my tampons, somewhere in the back of my mind, I’d always assumed they were cotton — after all, it looks like cotton, it feels like cotton, it must be cotton, right?

Suddenly, my familiar pink box of tampons didn’t feel so sweet and innocent any more.

So, imagine my surprise when I learned that the FDA doesn’t require feminine care brands to disclose a comprehensive list of ingredients on their product packaging. Wait, what?! What have I been putting in my body month after month for all these years?

Turns out, most tampons are made out of a mix of synthetic fibers like rayon and polyester. But even more concerning is that the fibers can be treated with all sorts of chemicals and packed with additives before being stitched into tampons: there’s fragrance, and chlorine, and dye (oh my!). Pair that information with the fact that your vagina is the most absorptive part of your body (even more than your mouth or your skin!), and I was left with a lot of questions! Suddenly, my familiar pink box of tampons didn’t feel so sweet and innocent any more.

Fortunately, my research also brought me to LOLA. LOLA offers 100% cotton tampons (no mystery ingredients here!) in a flexible subscription service. I pick my mix of tampons, how many boxes I need, and how frequently I want them to arrive, and they’re delivered right to my door. Who would have thought that peace of mind could be so convenient!

So long, pink box, you won’t be missed!

Becca lives in NYC. Her hobbies include reading books that were probably meant for teenagers, and following dogs that wear clothes on Instagram.