Adapter works great, Hollister
Great product. Seals very well. Highly recommended.
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Hollister CeraRing Oval Convex Barrier Rings are designed for ostomy users who need a convex fit. The oval shape provides a customizable, secure seal around the stoma.
Barrier rings are soft, mouldable seals that sit between your skin and your ostomy wafer (the adhesive part of your pouching system). They fill the small gaps and uneven spots around your stoma so output can't sneak underneath — the most common cause of leaks and sore skin. Hollister's CeraRing rings go one step further: they're infused with ceramide, a natural component of healthy skin, to help protect the delicate peristomal skin — the skin right around your stoma.
A convex ring curves gently outward instead of lying flat. That light, even pressure helps coax a flush or retracted stoma to sit a little more proud, so output drops cleanly into your pouch. Many people find convex helpful when:
If you're not sure whether convex is right for you, your stoma care nurse can help you decide.
Hollister makes CeraRing rings in three shapes. The right one comes down to how your stoma sits against your skin. If your stoma is flush or pulls inward, choose this oval convex ring. If it protrudes and the skin around it stays firm and even, a flat ring sits more comfortably.
| Ring | Best for | Shape and width |
|---|---|---|
| CeraRing Oval Convex (this page) | A stoma that sits flush or pulls inward | Convex, oval. Opening 7/8" x 1-1/2", stretches to about 1-1/8" x 1-3/4" |
| CeraRing Flat 4" | A stoma that protrudes, with firm and even skin | Flat, 4" wide |
| CeraRing Flat Slim 2" | A protruding stoma when you want a lower profile | Flat and slim, 2" wide |
Not sure which fits your stoma? Your stoma care nurse can measure it and point you to the right shape.
Healthy skin is the foundation of a secure seal. Change your ring before it's fully worn — for most people that's every few days, but trust how your skin feels. If you notice redness or irritation that doesn't settle, check in with your stoma care nurse. CeraRing's ceramide formula is designed to support your skin between changes, not replace good routine care.
A flat ring lies level against your skin; a convex ring curves gently outward to apply light pressure around the stoma. Convex is often chosen for flush or retracted stomas, or skin that's soft or uneven, to help the stoma sit proud and reduce leaks.
Convex can help if your stoma sits level with or below the skin, if the surrounding skin is creased or soft, or if you've had leaks with flat products. If you're unsure, ask your stoma care nurse — they can assess your stoma and recommend the right fit.
You mould them — no cutting needed. The soft, flexible material stretches and shapes by hand so you can match your stoma's size and shape. You can also stack two rings for extra height, or stretch one for a larger opening (starting opening 7/8" x 1-1/2", stretchable to about 1-1/8" x 1-3/4").
Yes. CeraRing's adhesive is infused with ceramide, a lipid found naturally in healthy skin. It's included to help maintain the skin's moisture barrier around your stoma while improving the seal — helpful because peristomal skin meets adhesives and output every day.
They're designed to. By filling gaps and creating a secure, even seal around the stoma, barrier rings reduce the chance of output reaching your skin. The convex shape adds gentle support for stomas that are flush or retracted, where leaks are more common.
It varies by person and routine. Many people change their ring with each pouching-system change, every few days. Change sooner if the seal starts to weaken. A box of 10 covers roughly a month of typical use.
Yes — CeraRing barrier rings are not made with natural rubber latex.
Yes. Ostomy barrier rings are an eligible medical expense, so you can pay with your FSA or HSA funds. If your plan resets at year-end, it's worth reordering before unused funds expire.
Reviewed by the AdhereSkin Care Team, which includes Edgar, a Doctor of Pharmacy (PharmD), and checked against Hollister's published product guidance and UOAA resources.
This page is general information, not medical advice. If you have concerns about your stoma or the skin around it, speak with your stoma care nurse or doctor.
Real feedback from people who use CeraRing every day.