Ostomy Supplies: A Complete Guide to What You Need and How to Choose

Ostomy supplies are the products that collect waste from your stoma and protect the skin around it. At the center is a pouching system: a skin barrier (also called a wafer or flange) that sticks to your body, and a pouch that collects output. Around that core sit the accessories that solve the everyday problems ostomates actually face, like barrier rings for a leak-proof seal, skin protectants, pouch deodorant, and fixation tape for extra security.

This guide walks through every category and explains, in plain language, what each item does, so you can build a kit that fits the shape of your stoma and the demands of your day. We are a retailer that resells trusted manufacturer brands like Hollister, so the advice here is about what works, not a sales pitch.

In this guide

• What are ostomy supplies? The main categories
• What supplies do you need for a colostomy, ileostomy, or urostomy?
• What is a skin barrier (wafer) and how do you choose one?
• What is a barrier ring and do you need one?
• How do you keep odor under control?
• Which accessories actually help?
• How do you measure your stoma for the right fit?
• Are ostomy supplies covered by FSA, HSA, or insurance?
• How much should you keep on hand and how often to reorder?
• Frequently asked questions

What are ostomy supplies? The main categories

Most ostomy supplies fall into two groups: the pouching system you wear every day, and the accessories that make it more secure and comfortable. You do not need every accessory. Start with the basics, then add the ones that solve a problem you actually have.

• Skin barrier (wafer or flange): the adhesive part that sticks to your skin and has an opening cut to your stoma size.
• Pouch (bag): collects output. Comes drainable or closed, and clear or opaque.
• Barrier rings: moldable rings that fill gaps and create a tight, leak-resistant seal around the stoma.
• Skin barrier powder and protectant: calm and protect sore or weepy peristomal skin (the skin right around the stoma).
• Pouch deodorant: controls odor inside the pouch.
• Fixation tape and belts: add security at the edges of the barrier or hold the system in place during activity.
• Adhesive remover and skin prep: help you take the barrier off gently and prep the skin for the next one.

What supplies do you need for a colostomy, ileostomy, or urostomy?

The core kit is the same for all three (a skin barrier plus a pouch), but the pouch type and a few accessories change based on the kind of output you manage. Here is how the needs differ.

Ostomy type	Typical output	Usual pouch	Accessories that often help
Colostomy	Firmer, less frequent	Closed or drainable	Deodorant, barrier ring
Ileostomy	Looser, more frequent, more enzymes	Drainable	Barrier ring, skin protectant (enzymes are hard on skin)
Urostomy	Urine, constant	Drainable with a tap, plus a night drainage bag	Barrier ring, night bag connector

An ileostomy tends to be the hardest on peristomal skin because the output contains digestive enzymes, so a reliable seal and a skin protectant matter most there. A urostomy adds a night drainage bag so you are not emptying every few hours while you sleep.

What is a skin barrier (wafer) and how do you choose one?

The skin barrier is the adhesive disc that sticks to your abdomen and holds the pouch, with a hole cut or molded to match your stoma. It is the single most important part of the system, because a barrier that fits well and stays put is what prevents leaks and protects your skin.

Three choices define a barrier:

• Cut-to-fit, pre-cut, or moldable: cut-to-fit lets you trim the opening to your exact stoma; moldable stretches to shape without scissors.
• Flat or convex: flat suits a stoma that sticks out; convex presses gently around a flush or recessed stoma to help it protrude. If you are unsure, our guide on barrier rings and seals explains how shape affects the seal.
• Standard or extended wear: extended-wear barriers resist breakdown from liquid output longer, which helps ileostomates.

If your wafer keeps coming loose, the cause is usually fit, skin moisture, or wear time. We break down each one in why your ostomy wafer keeps leaking.

What is a barrier ring and do you need one?

A barrier ring is a soft, moldable ring of skin-barrier material that you shape around your stoma to fill gaps and create a tighter, more leak-resistant seal under the wafer. Not everyone needs one, but if you deal with leaks, a stoma that sits in a dip or fold, or output that creeps under the barrier, a ring is often the fix.

Rings shape to your body without scissors, and they protect the skin closest to the stoma where leaks usually start. Compared with paste, many ostomates find a ring cleaner and more comfortable to apply (see barrier ring vs ostomy paste).

If your skin is fragile or reacts to adhesives, a softer ring can be gentler day to day.

How do you keep odor under control?

Modern pouches are made to be odor-proof when sealed, so day-to-day smell usually only happens when you empty or change the pouch. A pouch deodorant handles that moment, and it doubles as a lubricant that helps output slide to the bottom of the bag (which also reduces pancaking).

Diet plays a part too. For the foods that tend to cause gas and stronger odor, see how to stop ostomy bag odor.

Which accessories actually help?

Accessories are where ostomates personalize their kit. Add them to solve a specific problem, not by default.

• Fixation tape: a strip of soft tape around the edge of the barrier adds security during showers, exercise, or hot weather. A breathable fabric tape like Hypafix is a common choice.
• Skin barrier powder: calms raw or weepy skin so the barrier can still stick. Used only on broken skin, not as a daily preventive.
• Skin protectant wipes: leave a thin protective film that guards against adhesive stripping.
• Adhesive remover: releases the barrier without pulling at sore skin. Pairs well with the gentle removal steps in our skin-care advice below.
• Ostomy belt: clips to the pouch flange to hold the system steady and ease the feeling of a heavy bag.

If irritation is your main issue, the most useful next read is how to stop peristomal skin irritation.

How do you measure your stoma for the right fit?

Measure your stoma at its base and cut the barrier opening about one sixteenth of an inch (roughly 1 to 2 mm) larger, so it sits close without pressing on the stoma. A gap that is too wide exposes skin to output; an opening too tight can rub the stoma.

1. Use a measuring guide. Most barrier boxes include a card with graduated circles.
2. Measure after a change, when the stoma is at rest, and remeasure every week or two for the first few months. A new stoma shrinks as swelling settles.
3. Cut or mold to size, then smooth the edges so nothing catches.

For the full routine, see how to change an ostomy bag.

Are ostomy supplies covered by FSA, HSA, or insurance?

Yes. Ostomy supplies are eligible expenses under most FSA and HSA accounts, and Medicare Part B and many insurance plans cover them as prosthetic devices. That includes barriers, pouches, barrier rings, deodorant, and skin protectants.

A few practical notes:

• Keep your receipts. FSA and HSA reimbursement usually just needs proof of purchase for an eligible item.
• Insurance coverage often has monthly quantity limits, so check your plan before a big reorder.
• Not every product in a broader medical store is FSA eligible. Items like probiotics or dental cleaners are not, so confirm eligibility per product at checkout.

How much should you keep on hand and how often to reorder?

A good rule is to keep at least two weeks of supplies on hand and reorder when you are down to about one week left. Wear time varies, but many ostomates change the full system every 3 to 4 days, which works out to roughly 8 to 10 barriers a month plus pouches and any rings you use.

Track how many you use in a typical month, then set a reorder reminder. Buying in multipacks lowers the per-unit cost and means fewer gaps. Because supplies are consumables, a small buffer protects you from running short during travel or a shipping delay.

Frequently asked questions

What are the basic ostomy supplies a beginner needs?

Start with a skin barrier (wafer), pouches, and a measuring guide. Add a barrier ring if you have any leaks, a pouch deodorant, and an adhesive remover. That covers daily wear plus the two most common problems, odor and seal.

Do I need a barrier ring if my wafer already sticks?

Not always. If you never leak and your skin stays healthy, a barrier ring is optional. If output gets under the barrier, your stoma sits in a fold, or you change more often than you would like, a ring usually improves the seal and wear time.

How long do ostomy supplies last before changing?

Most people change the full pouching system every 3 to 4 days, though it ranges from 2 to 7 days depending on your output, skin, and barrier type. Change sooner if you notice itching, burning, or any sign that the seal is lifting.

Are ostomy supplies FSA and HSA eligible?

Yes. Barriers, pouches, barrier rings, deodorant, and skin protectants are eligible FSA and HSA expenses, and they are typically covered by Medicare Part B and private insurance as prosthetic devices.

Can I shower with my ostomy supplies on?

Yes. You can shower with the pouch on or off. The barrier is water resistant, and a strip of fixation tape around the edge adds security if water tends to loosen yours.

Written by the Adhereskin Care Team. This guide is general information, not medical advice. Talk to your ostomy nurse (WOC nurse) about your specific stoma and skin. Sources: United Ostomy Associations of America (UOAA) ostomy skin and supply guidance, and Hollister product use information.