See the Difference — Or It's Free!
If you don't notice improvements in softer lumps, energy, coat quality, joint comfort, or overall vitality within 90 days of delivery, return it for a full refund. No questions asked.
Fatty lumps form and keep growing because the immune system stops recognising abnormal fat deposits as something to clear. This formula works on four levels: cutting off the fat supply (Shiitake), signalling immune cells to find and clear deposits (Turkey Tail + Lion's Mane), slowing new lump growth (Reishi + Chaga), and calming the inflammation that lets lumps go unnoticed (Turmeric + Astragalus).
Shrinkage and softening of existing fatty lumps. Prevention of new lump formation. Stronger immune recognition of abnormal tissue. Improved energy and vitality. Joint comfort and mobility. Healthier skin and coat. Better gut health and digestion.
Turkey Tail is the most studied medicinal mushroom for immune support. Its natural compounds signal immune cells to find and clear abnormal tissue. Without that signal, the immune system walks past fat deposits. With it, the body starts doing what it was always designed to do.
Most dog supplements use one or two mushrooms and hide their doses in a proprietary blend. Rejuvapaw uses 11 full-spectrum fruiting body mushroom extracts — no grain filler — with every ingredient dose listed individually. The formula covers the full chain of lump formation: fat supply, immune recognition, fat cell growth, and whole-body inflammation. No single ingredient handles all four — which is why the full 11-mushroom blend is needed.
Results build with consistent daily use. Many owners begin noticing improvements in energy and coat quality within 2–4 weeks. Visible or palpable changes in lumps often become apparent between weeks 4–12. That's why your order is covered by a full 90-day money-back guarantee.
Dogs experiencing fatty lumps, low energy, joint stiffness, or reduced immunity — or any owner who wants to support their dog's health from within. Suitable for all breeds and sizes. Feeding guide: Up to 25 lbs = 1 chew / 26–75 lbs = 2 chews / 75 lbs+ = 3 chews.
NOT ANOTHER OVERHYPED DOG SUPPLEMENT
You can feed your dog well, give supplements, stay consistent — and still see lumps growing, energy dropping, or joints stiffening.
That usually happens when abnormal fat cells go unrecognized and quietly keep growing under the skin while interfering with immune function, energy, joint health, and overall vitality.
This formula is built around Turkey Tail, a powerful medicinal mushroom traditionally used to help the body find and clear abnormal fat deposits. Supported by 10 additional mushrooms and targeted botanicals, it helps clear what doesn't belong there — so your dog can finally return to a lighter, more energized state.
Helps intercept the dietary fat that quietly feeds lump growth and allows fatty deposits to keep expanding day to day.
Helps signal the immune system to find the abnormal fat deposits it has been walking past — so the body can start doing what it was always meant to do.
Helps reduce the rate at which new lump tissue forms while the body works to clear what already exists.
Helps reduce the ongoing inflammation that allows fat cells to go unnoticed and keeps lumps coming back.
Ships within 24 hours
Clinically backed formulaTrusted by 10,000+ dog parents worldwide
Backed by research.
Confirmed by dog owners.
Hear how dogs finally stopped growing new lumps — and felt like themselves again
Before:
“My golden retriever Rosie had a lump that kept getting bigger. The vet told me to just watch it. I wasn't okay with that. After two months on these chews, the lump is noticeably smaller — my vet even mentioned it at our last checkup. Rosie also has so much more energy. She's running around like she did three years ago.”
Before:
“Duke is 10 and had lumps on his chest and belly that were growing every few months. After about six weeks I noticed him moving more freely and the lumps felt softer. Two months in, one of them is almost gone. My whole family noticed the difference.”
Before:
“I couldn't afford the surgery my vet recommended. A friend told me about these and I figured I had nothing to lose. By week eight I could feel the lump was smaller and softer. Her coat is shinier too. I wish I had found this sooner.”
100% Natural Formula, Tested for Effectiveness
Turkey Tail helps the immune system find and clear the abnormal fat deposits it has been walking past. Its natural compounds bind to immune cells and turn on the body's ability to identify what doesn't belong there.
Shiitake acts like a sponge in the gut. It binds dietary fat before it gets absorbed — cutting off the supply that feeds lump growth at the source.
Reishi helps slow down the rate at which abnormal fat cells multiply. This gives the immune system time to catch up and clear what already exists.
Chaga is one of the most protective natural compounds around. It floods the body with antioxidants that calm the inflammation making it easier for fat cells to go undetected.
Lion's Mane supports healthy nerve and brain function. Dogs on the formula often seem more alert and engaged as overall cellular health improves.
Turmeric calms the whole-body inflammation that allows abnormal cells to keep going unnoticed. Astragalus helps every mushroom in the formula work better — making the whole thing more effective than any single ingredient alone.
In a recent customer survey, owners reported:
Reported smaller or softer lumps within 8–12 weeks*
Noticed more energy and vitality with consistent use*
Saw improvements in coat and skin with consistent use*
Said they would recommend Rejuvapaw to another dog owner*
*Results based on a voluntary, self-reported customer survey conducted
by Rejuvapaw in 2026.
Individual results
may vary.
Medicinal mushrooms like the turkey tail have been used for thousands of years across Asian, Eastern European, and Indigenous traditions as plants associated with immune strength and whole-body protection. They were often turned to when the body felt slow, rundown, or out of balance after illness, stress, or age.
Rather than forcing a reaction, medicinal mushrooms were valued for supporting the body's natural ability to find and clear what didn't belong — and to maintain balance from within. Today, modern interest in immune health has renewed attention on these traditional mushrooms, specifically turkey tail, helping explain why they remain a staple in wellness routines for both people and animals.
Just 1–3 chews per day.
Your dog's system starts responding as immune signaling improves. Changes may be subtle at first, but the internal environment is beginning to shift.
As the formula builds, many owners notice better energy and alertness. The body starts addressing what it previously ignored.
This is when results become noticeable. Many report softer-feeling areas, improved coat quality, and steady energy throughout the day
With continued use, the formula keeps the immune environment needed to stop new lumps from forming. Joint comfort, gut health, and overall vitality keep improving. Many owners report their dog seems years younger.
Rejuvapaw
Other Dog
Functional Nutrition Specialist
“Most dog supplements focus on one system. Rejuvapaw works differently because it starts with the gut — where most immune cells are produced. Astragalus and Shiitake support the gut environment that makes the whole immune formula more effective. In practice, that means the body can actually act on the signals Turkey Tail is sending — rather than trying to respond with a depleted immune system.”
Holistic Veterinary Wellness Practitioner
“Fatty lumps in dogs are widely dismissed as a cosmetic issue. But they persist because of an immune recognition failure. The body simply doesn't see them as something to clear. Turkey Tail and Lion's Mane address that at the cellular level — while Shiitake cuts off the dietary fat that feeds lump growth. Together they work with the body instead of forcing it. That is exactly what leads to steady, lasting results.”
Clinical Nutrition Specialist
“What stands out to me about Rejuvapaw's formula is its layered approach. Instead of relying on a single mushroom, it addresses lump formation from four different directions — cutting off the fat supply, activating immune clearance, slowing new growth, and reducing the inflammation that allows fat cells to go unnoticed. That combination is why many dog owners report seeing real changes without surgery or harsh treatments.”
90-Day Money Back Guarantee
Rejuvapaw's Mushroom Chews are built with a purposefully layered blend of 11 mushrooms designed to support immune function, lump reduction, and whole-body health. Each ingredient dose is individually disclosed — no hidden blends.
Most dog owners begin noticing changes like softer lumps, more energy, and a healthier coat within 4–8 weeks. That's why your order is covered by our full 90-day guarantee. Use it consistently — if it's not right for your dog, you're protected.
We want you to feel confident trying Rejuvapaw's Mushroom Chews. If you're not happy with your dog's experience for any reason, our team makes returns straightforward and hassle-free. No pressure. No complicated process. Just real support.
100% Natural Formula, Tested for Effectiveness
Based on 2,439 reviews
Natalie, 63 — Naples, FL
"Our vet had been telling us to just monitor Biscuit's lump
for two years. After three months on these chews it's
noticeably smaller — I can feel the difference when I pet him.
My vet was actually surprised at the last visit."
Andre, 52 — Silver Spring, MD
"I assumed the lumps on Rex were just part of aging and
nothing could be done short of surgery. They haven't
disappeared, but they're smaller and softer and he moves more
freely. That's more than I expected."
Priya, 46 — Fremont, CA
"I used to dread petting Cleo's side because of how big the
lump had gotten. Now it doesn't feel that way. It's smaller
and softer and she doesn't flinch when I touch it. That's a
big change."
Linda, 57 — Boca Raton, FL
"My daughter asked if I'd changed anything with Maggie
because she looked like a different dog. I hadn't done
anything except start these chews. Hearing that from someone
who sees her regularly made me realize the change was
real."
Heather, 39 — Charleston, SC
"By the time we went in for Luna's annual checkup, her vet
said the fatty lump near her ribcage had reduced in size. She
also has way more energy. It's a change I didn't expect but
I'm so glad I tried it."
Kevin, 44 — Long Beach, CA
"My groomer pointed out that the lump on Max's chest looked
smaller than last time. I hadn't mentioned the chews so that
was completely unprompted. Coming from someone who sees him
every month, that meant a lot."
Kara, 49 — Maplewood, MN
"Buddy's lump on his shoulder feels softer when I touch it.
It's one of those changes only you notice at first — but once
you feel it you realize something is actually
happening."
Brian, 65 — Spokane, WA
"I can feel the difference in Diesel when I run my hands
along his back. The lumps are softer and one seems smaller. My
wife commented that he's more active too. We've made these
part of his daily routine now."
Margaret, 60 — Savannah, GA
"Daisy used to slow down by midday and spend the afternoon
sleeping. Now she's active well into the evening. The lumps on
her belly have also gotten softer. She seems genuinely more
comfortable in her body."
FAQ
Fatty lumps form and keep growing because the immune system stops recognizing abnormal fat deposits as something to clear. At the same time, dietary fat keeps feeding their growth from inside the body.
This formula is built around Turkey Tail and 10 additional mushrooms to address both sides of that problem.
Step 1: Cut off the fat supply
Shiitake intercepts dietary fat
in the gut before it enters the bloodstream — starving existing
lumps of the fuel they need to grow.
Step 2: Signal the immune system
Turkey Tail and Lion's Mane help
immune cells identify the abnormal fat deposits they've been
missing — so the body can finally start clearing them.
Step 3: Slow down new growth
Reishi and Chaga reduce the rate
at which new lump tissue forms — giving the immune system time
to catch up.
Step 4: Reduce the inflammation
Turmeric and Astragalus calm the
whole-body inflammation that allows fat cells to keep going
unnoticed in the first place.
As these steps work together, lumps begin to shrink. Energy, coat quality, joint comfort, and overall vitality often improve alongside.
Turkey Tail is the most studied medicinal mushroom for immune support. Its natural compounds signal immune cells to find and clear abnormal tissue. Without that signal, the immune system walks past fat deposits. With it, the body starts doing what it was always designed to do.
Most dog supplements use one or two mushrooms and hide their doses in a proprietary blend. Rejuvapaw uses 11 full-spectrum fruiting body mushroom extracts — no grain filler — with every ingredient dose listed individually.
The formula covers the full chain of lump formation: fat supply, immune recognition, fat cell growth, and whole-body inflammation. No single ingredient handles all four. That's why 11 mushrooms plus Turmeric and Astragalus are needed — and why each was chosen for what it specifically does.
Results build with consistent daily use. Many dog owners begin noticing changes in energy and coat quality within 2–4 weeks. Visible or palpable changes in lumps often become apparent between weeks 4–12. With continued use, results keep building.
That's why your order is covered by a full 90-day guarantee.
Dogs experiencing fatty lumps, low energy, joint stiffness, or reduced immunity — or any dog owner who wants to support their dog's health from the inside out. Suitable for all breeds and sizes.
Feeding guide: Up to 25 lbs = 1 chew / 26–75 lbs = 2 chews / 75 lbs+ = 3 chews
Rejuvapaw is designed to support immune function and help the body address abnormal fat deposits over time. That said, every dog is different and results can vary.
That's why your order is covered by a full 90-day money-back guarantee. Use it consistently, and if you're not satisfied, simply let us know — we'll refund your purchase. No stress. No hassle.
Yes. This formula is designed for consistent daily use to support ongoing immune health and lump management. Many dog owners make it part of their dog's permanent daily routine — especially as lump recurrence risk increases with age.
Give 1–3 chews daily with food depending on your dog's weight. Dogs eat them like a treat — no mixing needed.
Up to 25 lbs: 1 chew / 26–75 lbs: 2 chews / 75 lbs+: 3 chews
Standard shipping typically takes 3–5 business days within the United States.
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