Stoma powder is a fine, moisture-absorbing powder you dust onto raw or weepy skin around your stoma so your barrier can still stick. It is made from skin-barrier material (usually pectin or karaya), and it works by soaking up the wetness that stops adhesives from holding. You use it only on broken skin, not on healthy skin, and only a light layer that you brush off before applying your pouch.
If the skin around your stoma is sore, pink, and damp, stoma powder is often the thing that lets you get a clean seal while the skin heals. Here is exactly what it does, when to use it, and how to apply it the right way.
In this article
- What is stoma powder and what does it do?
- When should you use stoma powder, and when not?
- How do you apply stoma powder? The crusting technique
- Is stoma powder antifungal?
- Stoma powder vs barrier ring vs skin protectant
- How to stop the raw skin coming back
- Frequently asked questions
What is stoma powder and what does it do?
Stoma powder is a hydrocolloid powder, the same family of material used in skin barriers and barrier rings, ground fine. When it touches moist, broken skin, it turns into a soft gel that absorbs the wetness and leaves a tacky surface the adhesive can grip.
That is the whole job: it dries weepy skin enough for your barrier to seal. It is not a cream or a medicine, and it does not heal the skin on its own. What it does is buy your skin a protected, sealed environment so it can recover under the barrier instead of staying wet and getting worse.
When should you use stoma powder, and when not?
Use stoma powder only on skin that is raw, weepy, or broken, never as a daily preventive on healthy skin. On intact skin, a layer of powder just sits between your barrier and your body and weakens the seal, which causes the very leaks you are trying to avoid.
Reach for it when you see:
- Moist, pink, or red skin right around the stoma that will not dry.
- Open or weeping areas where output has irritated the skin.
- A barrier that keeps lifting because the skin underneath is too wet to hold it.
Skip the powder if your skin is healthy and intact. If irritation keeps coming back, the real fix is usually a better seal or fit, which we cover in how to stop peristomal skin irritation.
How do you apply stoma powder? The crusting technique
The most effective way to use stoma powder is the crusting technique: layer powder and a no-sting skin barrier film in turns to build a thin protective crust over the sore skin. It sounds fiddly, but it takes about a minute once you have done it twice.
- Clean and dry the skin. Remove the old barrier gently, rinse the area with warm water, and pat it completely dry. No soap with oils or lotion, since residue stops adhesion.
- Dust a light layer of powder over the raw or weepy areas only.
- Brush off the excess. Only the thin layer stuck to the moist skin should remain. Loose powder is the enemy of a good seal.
- Seal it with a no-sting barrier film (a wipe or spray made for ostomy skin). Let it dry for a few seconds. This sets the powder into a crust.
- Repeat two to three times for a more durable layer if the skin is very weepy.
- Apply your barrier ring and pouch as usual once the area is dry to the touch.
If your skin does not improve within a week, or it gets worse, see your ostomy nurse (WOC nurse). Persistent damage usually means the seal needs adjusting, not more powder.
Is stoma powder antifungal?
No. Regular stoma powder is not antifungal. It only absorbs moisture so your barrier sticks, and it does not treat infections. This matters, because a common peristomal rash is a yeast (fungal) infection, and plain barrier powder will not clear it.
How to tell the difference: a yeast rash is usually red with small spots or pustules that spread outward beyond the barrier edge, and it often itches. That needs an antifungal powder such as nystatin, which is a separate medicated product your doctor or ostomy nurse can recommend. If you are unsure what you are looking at, ask before treating it. Using the wrong powder wastes time while the skin stays sore.
Stoma powder vs barrier ring vs skin protectant
These three products often get mixed up because they all protect peristomal skin. They do different jobs, and many ostomates use more than one together.
| Product | What it does | When to use it |
|---|---|---|
| Stoma powder | Absorbs moisture so the barrier sticks to broken skin | Raw, weepy, or open skin only |
| Barrier ring | Fills gaps and folds for a tighter, leak-resistant seal | Leaks, uneven skin, or as everyday prevention |
| Skin protectant film | Leaves a thin film that shields skin from output and adhesive | Sensitive skin, and to set the powder during crusting |
Powder treats a problem you already have. A barrier ring helps prevent it. Learn more in what is an ostomy barrier ring.
How to stop the raw skin coming back
Powder is a repair tool. Once the skin heals, the goal is to stop output from reaching it again, because contact with output is what burns peristomal skin in the first place. A snug seal does most of that work.
A moldable barrier ring fills the small gaps and folds where output sneaks under the wafer. For many ostomates, adding a ring is the single change that ends the cycle of leaks and sore skin.
Moldable ceramide-infused rings that fill gaps for a secure seal, so output stays off your skin. FSA and HSA eligible.
If your skin reacts to adhesives, a softer ring is gentler while you heal.
A soft, flexible ring for a comfortable seal, popular with fragile or reactive skin. FSA and HSA eligible.
Leaks have a handful of fixable causes. If yours keep happening, work through why your ostomy wafer keeps leaking.
Frequently asked questions
Can you use too much stoma powder?
Yes. A heavy layer or any powder left on healthy skin stops the barrier from sticking and causes leaks. Use a light dusting on broken skin only, then brush off all the excess before you apply your pouch.
How often can you use stoma powder?
Use it at every pouch change while the skin is raw, then stop once the skin is healed and dry. It is a healing aid, not a daily step, so there is no benefit to using it on skin that has recovered.
What can I use if I do not have stoma powder?
There is no good kitchen substitute. Talcum powder, cornstarch, and baby powder are not skin-barrier materials and will ruin your seal, so do not use them. If you are out, focus on drying the skin fully and getting a snug seal, and ask your supplier or ostomy nurse for a barrier powder.
Does stoma powder sting?
Plain barrier powder does not usually sting, even on broken skin. The skin barrier film you pair with it during crusting should also be the no-sting type, which is alcohol free and made for fragile skin.
Is stoma powder the same as a barrier ring?
No. Powder is a moisture absorber for broken skin, while a barrier ring is a moldable seal that fills gaps to prevent leaks. They solve different problems and are often used together.
Heal the skin, then keep it healthy
A secure seal keeps output off your skin so sore patches do not come back. Our Hollister CeraRing and SoftFlex rings ship free over $80 and are FSA and HSA eligible.
Shop ostomy supplies →Free shipping over $80 · Money-back guarantee · FSA and HSA eligible
Written by the Adhereskin Care Team. This guide is general information, not medical advice. If peristomal skin does not improve or you suspect an infection, see your ostomy nurse (WOC nurse) or doctor. Sources: United Ostomy Associations of America (UOAA) ostomy skin care guidance and manufacturer use instructions for barrier powder.