Muttwell Derma Prex is a daily chew that supports your dog's skin barrier from the inside — so you can stop reacting to every flare-up and start doing one small thing that actually adds up.
★★★★★ Trusted by 1,600+ dog households
Derma PrexNot the dramatic version. The ordinary Tuesday version — the one that's been going on long enough that you've stopped bringing it up with people.
If more than two of those are yours: you're not doing anything wrong. You've been treating the surface.
Work on the outside, wash off, need reapplying twice a day. The relief stops the week you stop.
Eight to twelve weeks per protein — and if you guessed the wrong one, the clock starts again. Meanwhile he's still licking.
Fast, and sometimes exactly what a dog needs. But your vet doesn't want him on them for years, and neither do you.
Fair enough. Most are a scoop of fish oil behind a nice label. Which is why the ingredient list further down has a reason written next to every single item.
None of it supports the thing underneath — the skin barrier itself. When that barrier is compromised, irritants get through more easily and the cycle keeps restarting. That's the gap Derma Prex was formulated for.
No diet change. No gloves. No holding him still for ten minutes. Ten seconds a day, at the moment you're already standing over his bowl.
Up to 25 lbs → 1 chew. 25–50 lbs → 2 chews. Over 50 lbs → 3 chews. That is the entire dosing decision.
Soft and salmon-flavoured, so most dogs take it straight from your hand. The ones who don't won't notice it on top of their kibble. No peanut butter, no pill pockets.
This is daily support, not a switch you flip. The owners who see the most change are the ones who stopped stopping.
If you're the kind of dog owner who reads the label before buying, this section is the one for you.
The straight version: this is a nutritional supplement, not a medicine. It doesn't cure allergies — nothing you can buy without a prescription does. It's daily nutritional support for skin and coat, designed to sit alongside whatever your vet has you doing rather than replace it.
We'd rather tell you now than have you give up in week two.
The formula is still building up. Some owners notice the night-time licking easing first — often before anything on the skin looks different.
Less constant. Red patches look less angry. This is the point where most people stop bracing for the sound.
Coat feels softer under your hand. Fur starts filling back in over the spots he'd licked bare. He spends his evenings doing something other than his paws.
One chew a day, and comfortable skin stops being the thing you think about every morning.
Individual results vary — dogs aren't identical and neither are the causes. If yours turns out to be one it doesn't help, that is exactly what the 30-day guarantee is for.
"Our nights are much quieter now."
If your dog scratches at night, you know exactly how exhausting that sound is. Milo used to wake us up constantly. Since staying consistent with his daily skin routine, our nights have become noticeably calmer.
Every time Murphy started licking or scratching again, I'd immediately order something new. It got expensive and stressful. Now we stick to one simple daily routine, and that feels far more manageable.
My first reaction was honestly "great, another dog supplement." I wasn't looking for a miracle. I just wanted something straightforward I could use consistently. Bruno likes the chews and it's been easy to make them part of his day.
I know myself — if something takes ten steps I'll do it for two weeks and stop. With Luna I needed something simple. Muttwell is just part of her normal day now. No complicated routine, no constant switching.
Shampoos, wipes, sprays and old supplements everywhere. Simba would have good weeks and then the scratching came back. I wanted to stop jumping from one product to the next. Keeping one simple daily routine has worked far better for us.
Maya already has a routine our vet recommended and I didn't want to replace it. I was looking for something we could add as everyday skin support. Muttwell was simple to introduce and easy to stay consistent with.
Typical US prices for a dog with ongoing itchy skin — the numbers most owners never add up in one place.
| What you've probably already bought | Typical cost |
|---|---|
| Vet consult for the itching | $95 – $250 / visit |
| Prescription hydrolysed diet | $80 – $110 / bag |
| Medicated shampoo | $25 – $40 each |
| Paw sprays, wipes, balms | $15 – $35 each |
| Prescription allergy medication | $60 – $90 / month |
| Muttwell Derma Prex | from $2.27 / day |
To be clear: Muttwell doesn't replace your vet, and it shouldn't. It replaces the shelf of half-used bottles you bought while waiting for something to work.
Every plan is a full 30-day supply, sized so you never have to do chew maths. Free shipping on all three.
Rather not think about reordering? Subscribe and save 20% — skip, pause or cancel in two clicks, no minimum.
Not "return it unopened" — that would be pointless for something that takes weeks to work. Use it, judge it, and if you're not seeing what you hoped for, email us within 30 days and we'll make it right.
You've already spent money on things that didn't work. The difference here is who carries that risk.
Probably not in the way you're hoping — there's no overnight switch here. What is different is the job it does. Most things you've tried treat the surface after a flare-up, or remove something and wait. Derma Prex is daily nutritional support for the skin barrier itself, taken whether or not today happens to be a bad day. It's the boring, consistent layer underneath everything else.
Itching has a lot of possible triggers — environmental allergens, food sensitivities, yeast, dry skin, a compromised barrier, or several at once. That's why guessing them one at a time is so exhausting. Muttwell supports skin health daily regardless of the trigger, but persistent or severe itching should still be looked at by a vet.
No. You add the chew on top of whatever he already eats. That's the entire integration.
It's designed as an addition, not a replacement, and it doesn't replace veterinary treatment. If your dog is on medication or has a diagnosed condition, check with your vet before adding anything — including this.
It's a soft salmon-flavoured chew, so most dogs take it straight from your hand. If yours refuses, break it up over his food. And if that still doesn't work, the 30-day guarantee covers it.
Some owners notice less night-time licking in the first fortnight. Most visible change gets reported around week three to four, with the bigger difference at six to eight weeks. If you need something to work by tomorrow, this isn't it.
Compare it to what a single vet consult for the itching costs, or to one bag of prescription diet. Where it stops being worth it is if you buy one jar, stop after 20 days and never find out — which is why every plan is sized to a full 30 days.
30 days, full refund or exchange. Orders ship within 24–48 hours with tracking, and most arrive in 5–10 business days.
That's the whole ask. One chew, at the moment you're already standing there anyway — and six weeks of not changing course.
