The four source types used here

MenstrualFacts.com is designed for short, sourced explanations. Before a claim is included, we ask what kind of source supports it and what the source does not support.

Public health information

The NHS pages used here support general period product facts: pads and tampons absorb menstrual flow; cups collect it and can be washed and reused; reusable period underwear is another option. The NHS also notes that cycle patterns vary and that new bleeding between periods, after sex, or after menopause should be discussed with a doctor.

Manufacturer guide

MonthlyCup’s guide supports model measurements, general comparison advice, and summarized use and care instructions. Because this is manufacturer information, we do not present it as independent clinical evidence.

Product listing

The MonthlyCup Normal Pink product information supports specific listing details for that product: 43 mm diameter, 55 mm length without stem, 65 mm including stem, 22 ml capacity up to holes, medical-grade silicone, manufacture in Sweden, a fabric storage pouch, and an instruction manual.

Support page

MonthlyCup’s support page supports the fact that product and shopping assistance is available and that the displayed customer-service email is shop@mosweden.com. It is not presented as medical care.

What we do before using a product claim

  • Locate the exact source. A model measurement should come from a current guide or product page, not from memory or an older advertisement.
  • Name the source type. Manufacturer instructions, public health pages, and customer support pages carry different weight and purpose.
  • Keep the claim bounded. If a product page lists capacity, we can state the listed capacity. We cannot turn it into a guaranteed leak-prevention claim.
  • Flag changing information. Prices, offers, and stock can change, so readers should check the live shop rather than rely on a static article.
Editorial rule: We do not fabricate tests, surveys, customer quotes, author experiences, independent rankings, medical claims, or environmental calculations.

Example: turning a product listing into a careful sentence

Supported: “The MonthlyCup Normal Pink product information lists 43 mm diameter, 55 mm length without stem, 65 mm including stem, and 22 ml capacity up to the holes.”

Not supported by that listing alone: “This size will fit you,” “this prevents leaks,” or “this product has a fixed lifespan.” Those are different kinds of claims and are not supported by the supplied source pack.

How we handle MonthlyCup instructions

The supplied MonthlyCup guide summary supports a limited set of instruction points: wash hands, empty according to flow and no later than 12 hours, release the seal before removal instead of pulling the stem alone, follow the supplied instructions, boil before first use and between periods as instructed, dry fully, store with air circulation, and replace damaged, sticky, or noticeably changed silicone.

We do not expand those points into additional medical or anatomy-specific instructions. For the latest product instructions, readers should use the instruction manual and current MonthlyCup support.