Skip to product information
1 of 4


Formoonsa Menstrual Disc

Formoonsa Menstrual Disc

Regular price $55.00 USD
Regular price Sale price $55.00 USD
Sale Sold out
Shipping calculated at checkout.

The Formoonsa Disc has two size options to fit your needs and features 3 removal notches around the rim. Designed in Taiwan - Formoonsa Disc is the first reusable disc with 3 notches that addresses disc rotation during wear.

Formoonsa Disc Benefits

  • 3 Removal Notches
  • Reusable – lasts up to 10 years
  • Made from 100% medical-grade silicone
  • Comfortable fit 
  • Available in TWO sizes 

Your Purchase Includes: One Formoonsa Disc, a sparkling fabric pouch. Period.Shop is currently selling Formoonsa Disc in the original Chinese language packaging. English user instructions can be viewed here: English Formoonsa Disc Instructions.

Who is the Formoonsa Disc Good For?

The Formoonsa Disc has two different size options to choose from to fit your needs. Select the Mini if your cervix is low, the size Regular fits those with an average cervix best. If you don't know your cervix height most people will find the size Regular to be a good fit. With a firm but flexible rim most users will find a Formoonsa Disc to be a comfortable wear experience.

Formoonsa Disc Features and Dimensions

Size Mini

formoonsa disc size mini measurements

Size Regular

formoonsa disc regular measurements>


Formoonsa Disc Size Chart


Formoonsa Disc Mini

Formoonsa Disc Regular

Best suited for

Low Cervix

Average or High Cervix

Capacity (ml)



Diameter (mm)




3 / 5

3 / 5

All measurements per Manufacturer.

You can sort cups and discs by measurement on the Period Nirvana Menstrual Cup Chart.

HSA/FSA Eligible

This product is eligible for purchase using your HSA/FSA card or for reimbursement with your HSA/FSA plan under the CARES Act. See our FAQ for more on how to purchase your menstrual products with HSA/FSA.

Why Buy From Period.Shop?

Unlike big box stores and huge billion-dollar websites, Period.Shop carefully hand selects and vets each and every product we carry to make sure they meet our strict standards. If you find it on Period.Shop you can trust the product is ethically made, high-quality, and a proprietary design. Only brands who meet at least one of our standards will be carried by Period.Shop, but most brands meet multiple or even all three. Our warehouse is located in South Carolina and all products are shipped by us with the exception of Saalt Wear items, shipped directly to our customers by Saalt.

Kim Rosas, the founder of Period.Shop and Period Nirvana, has spent the last 12+ years in the reusable products space. After many years of creating educational content and teaching workshops around the country, she started the first reusable menstrual products store in the US and an educational platform for reusables: Period Nirvana. The mission was simple - provide the highest quality shopping experience and resources to make finding the perfect menstrual cup or disc easier. As a leading expert in this space, there is no one more qualified to curate your products than Kim Rosas. By shopping with Period.Shop you can support a small business that is providing free educational resources. Plus, you know you’re purchasing a product that has the Period.Shop stamp of approval.

Return Policy

Return and Refund Policy ---- Due to the nature of our products, Period.Shop cannot accept any product returns nor accept product exchanges or offer refunds. This includes on items that were never opened. 

We can replace items if they are defective or damaged at arrival. We can replace items if you were sent the wrong product, wrong product size, or wrong product color than the product you ordered.

Replacement requests for defective or damaged at arrival products are considered and reviewed on a case by case basis, and are at the sole discretion of Period.Shop and its owners. If you are in need of a product replacement, we ask that you send visual proof and supporting evidence to our email at We will evaluate your request in a timely manner but be aware that we do not answer emails on weekends or holidays. Depending on where you live, the time it may take for your replaced product to reach you may vary.

Each brand uses different packaging methods, some brands have security seals on their packaging while others do not. All items carried and sold by Period.Shop come to us directly from the manufacturer or distributor.

Order Changes or Cancelations - Please review your sizes and address carefully!

Period.Shop ships every weekday, often within hours of the order being placed. For that reason not all order changes or cancelations can be honored. If you reach out after noticing a mistake you made during your order and it has already been shipped we are not able to send a replacement for you. Please know that we do our best to make changes or cancelations when we receive the request but it's not always possible. We check emails and messages each weekday beginning at around 9-10 am based on availability. We begin shipping orders as early as 7 am on weekdays. Emails and messages received over the weekend or holidays are addressed on the next workday. To reach Period.Shop about order questions please email Your message may not be seen if you send it to our social accounts.


Contact for any issues with your order or questions about refunds or replacements.

View full details