# Medical-Grade Silicone Cup B Menstrual Cup Set

## What it is

The Medical-Grade Silicone Cup B Menstrual Cup Set is a Uva wellness product. Positioned for for-him and for-her. Current price: $36.99 (retail value $44.66). In stock.

## Emma's take

Heavy days, met with 25ml of quiet confidence.

Size B is the pick for heavier flow days: a 25ml capacity, rated for those who've had a natural birth or are past thirty, per the brand's own sizing guide. The medical-grade silicone and anti-leak rim are designed to hold steady through a full day, and the cleaning slit lets you flip the cup inside out for a real deep clean between cycles. If you're newer to cups or run lighter, I'd steer you toward Size A or Size 0 instead. Give it a full cycle or two to learn the fold and the seal before you judge it.

## Specifications

- Size: Cup B (largest in the Uva sizing range)
- Capacity: 25ml
- Recommended flow: Heavy, equivalent to 3-4 tampons per day
- Material: Medical-grade silicone
- Reusable lifespan: Up to 10 years
- Certification: FDA registered and compliant
- Feature: Anti-leak rim edge
- Feature: Cleaning slit for easy evacuation and deep cleaning

## What's in the box

- 1x Uva Cup B menstrual cup (Size B, 25ml capacity)

## Care instructions

- Boil in water for 5-10 minutes before first use and between cycles.
- Rinse with water or a mild, fragrance-free soap between insertions.
- Air dry completely before storing it away in a clean spot.
- Skip oil-based lubricants and harsh or scented soaps on the silicone.
- Replace the cup if you notice tears, stiffness, or discoloration.

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Last updated: 2026-09-14
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## Frequently asked questions

## What size is the Uva Cup B menstrual cup meant for?

Cup B is the largest size in Uva's line, with a 25ml capacity built for heavy flow days. The brand's own sizing guide recommends it for those who've had a natural birth or are over 30; if that doesn't describe you, Size 0 or Size A are the better starting point.

## How often will I need to empty the cup on heavy flow days?

At 25ml, this cup holds roughly the same volume as three to four tampons, so expect to empty it about as often as you'd change a tampon on your heaviest days. Lighter days stretch that window out considerably.

## How do I clean the menstrual cup between cycles?

The slit at the base lets you turn the cup inside out for a real deep clean, not just a surface rinse. Between cycles, boil it in water for five to ten minutes since it's medical-grade silicone, then let it air dry fully before storing it away.

## Will this cup fit me if I haven't given birth?

Cup B is sized for those who've had a natural birth or are over 30, according to Uva's sizing guide. If neither applies to you, Size 0 or Size A are built for a snugger, more beginner-friendly fit.

## Is the medical-grade silicone body-safe for daily internal use?

Yes, it's FDA registered and compliant, made from medical-grade silicone that's inert and non-porous, which is exactly the material profile menstrual cups are built from for internal safety.