"Tear staining isn't a grooming problem — it's a physiological one. The red-brown pigment comes from porphyrins excreted in your dog's tears. Topical wipes remove what's already stained, but they can't stop the body from producing more. Targeted internal support — probiotics, antioxidants, and yeast-balancing compounds — addresses the actual source. That's exactly what GlowTail® Tear Stain Support is formulated to do."
Dr. M. Collins ✓
DVM, Integrative Veterinary Medicine Specialist
"In small and light-coated breeds, tear staining is almost always linked to yeast overgrowth in the moist tissue around the eyes, combined with elevated porphyrin levels. I recommend owners approach this from the inside out — supporting gut balance and reducing the mineral load in the tears themselves. A good daily chewable eliminates the guesswork and keeps owners consistent."
Dr. S. Park ✓
DVM, Small Breed & Canine Nutrition Specialist
Why wiping alone will never fully clear the stains
Here's what changes when you add internal support to your daily routine
What actually happens when you give it every single day
No messy wipes. No holding a squirming dog still. Just one chewable a day that works while your existing routine keeps the surface clean.
Week 1–2
You've started — and that already matters more than another wipe. The probiotic and antioxidant blend begins building in your dog's system. You won't see dramatic changes yet, but underneath, the conditions that keep producing those stain-causing tears are beginning to shift.
Week 3–4
This is when most owners first notice a difference — not because the old stained fur is gone, but because less new staining is forming. Your daily wipe finally starts to feel like it's winning instead of just keeping up.
Week 6–8
As stained fur grows out and new, unstained fur comes in, the transformation becomes visible. This is when strangers stop assuming the worst — and you stop having to explain yourself at the dog park.
Month 3+
By now it's just part of your morning. You hand it over, they take it like a treat, and you get on with your day. The face that started all of this looks like a completely different dog — and you know exactly why.
GlowTail® Tear Stain Support is formulated with 6 research-backed ingredients chosen to reduce irritation-driven tearing, fight oxidative stress around the eyes, and support the healthy vision and tear quality that keeps staining from coming back.
Zeaxanthin
One of the most potent antioxidants known for protecting eye tissue — and rarely found in dog supplements. Astaxanthin helps neutralize the oxidative damage that keeps eyes inflamed and overactive, tackling tear staining at one of its deepest root causes.
Bilberry Extract
A trusted natural antioxidant with decades of research behind it for eye health and circulation. Bilberry supports healthy blood flow to the delicate tissues around the eye — improving tear quality and reducing the pigment-heavy discharge that stains fur.
Astaxanthin
One of the most potent antioxidants known for protecting eye tissue, and rarely found in dog supplements. Astaxanthin helps neutralize the oxidative damage that keeps eyes inflamed and overactive, tackling tear staining at one of its deepest root causes.
Cod Liver Oil
A rich source of omega-3 fatty acids and fat-soluble nutrients that support healthy tear film and reduce the inflammation that causes eyes to over-produce tears. Less excess tearing means less staining — every single day.
Vitamin A
An essential nutrient directly tied to healthy tear film production. Without adequate Vitamin A, tear quality deteriorates — leading to dry, irritated eyes that compensate by producing more tears. Getting this right is foundational to clearing stains for good.
Lutein
One of the most researched nutrients for eye tissue health. Lutein supports the retina and helps protect delicate eye structures from the daily oxidative stress that causes irritation, redness, and the excess tearing that feeds tear stains.
The one step your daily routine has been missing
You already wipe. You already use filtered water. Now give your dog's body the internal support that makes all of it actually work.
01
Check Your Dog's Weight
Dosage is simple: 1 chewable for dogs up to 25 lbs, 2 for 26–50 lbs, 3 for 51–74 lbs, 4 for dogs over 75 lbs. No measuring, no math, no mess.
02
Give With Their Morning Meal
Hand it over after breakfast or drop it in their bowl. The chicken-flavored chewable means most dogs take it straight from your hand. Always give with food for best absorption and to avoid stomach sensitivity.
03
Keep Up Your Existing Routine
Keep wiping, keep using filtered water, keep the eyes clean. GlowTail® works alongside what you're already doing — it doesn't replace it. The difference is that now you're tackling the cause, not just the symptom.
04
Stay Consistent for 4–8 Weeks
The ingredients build in your dog's system over time. Most owners notice new staining slowing in weeks 3–4, with full results visible as stained fur grows out and clean fur grows in.
The safe, natural way to stop stains before they start
Formulated without antibiotics, harsh chemicals, or proprietary mystery blends — daily tear stain support that's gentle enough to use every day, and effective enough to finally make a real difference.
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Vet & Nutritionist Formulated — No Antibiotics
Unlike legacy tear stain products that relied on tylosin or tetracycline, GlowTail® uses 100% natural ingredients your vet will actually feel good about. No prescription needed. No concerns about antibiotic resistance.
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Made in the USA in an FDA-Registered Facility
Full ingredient transparency — no proprietary blends, no hidden fillers. Every ingredient and its amount is on the label, so you know exactly what you're giving your dog.
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Safe for Puppies and Long-Term Daily Use
Gentle enough to start from puppyhood — especially important if your dog is teething, where temporary excess tearing is common. And safe to continue indefinitely as a daily maintenance supplement.
From embarrassed new owners to research-obsessed pet parents — here's what they're saying after making the switch.
★★★★★ 5.0
People have stopped asking what's wrong with him
I was so embarrassed at the dog park. Everyone assumed I didn't clean his eyes. I'd tried wipes every single day for months and nothing changed. Six weeks on GlowTail and the staining has nearly disappeared. Nobody asks anymore. I could cry.
Jennifer M. — Maltese owner, Florida ✔ Verified Buyer
★★★★★ 5.0
Finally something that addresses the actual cause
I'd done the research. I knew it was porphyrins and yeast — not dirt. So wipes were never going to solve it. I tried three different products before GlowTail. The probiotic and blueberry combo is genuinely different. New fur is coming in completely clean.
Carla T. — Bichon owner, Texas ✔ Verified Buyer
★★★★★ 5.0
My daily routine finally feels like it's actually working
I was already wiping twice a day and using filtered water. The stains kept coming. Adding this chewable in week three was when my wipe actually came away clean. I didn't change anything else. This was the missing piece.
Sandra R. — Pomeranian owner, California ✔ Verified Buyer
★★★★★ 5.0
My vet said the ingredient list made complete sense
My puppy had terrible staining and I was convinced something was seriously wrong. The vet said she was healthy but I couldn't let it go. I showed her GlowTail and she said the formula was well thought out and approved it immediately. That was enough for me.
Tanya W. — Shih Tzu owner, Colorado ✔ Verified Buyer
★★★★★ 5.0
I stopped explaining myself at puppy class
My white Westie puppy had the worst staining when she was teething. I couldn't convince anyone I was taking care of her. GlowTail cleared it up within two months. Now I recommend it to every single person in my puppy class with a light-coated dog.
Maria L. — West Highland Terrier owner, Arizona ✔ Verified Buyer
★★★★★ 5.0
Tried absolutely everything. This actually worked.
Changed the water, changed the food, changed the bowl material, tried three different wipe brands. Nothing moved the needle. GlowTail was the only thing that produced a real, visible difference. My husband said he felt like she was a different dog.
Diane F. — Japanese Spitz owner, Ohio ✔ Verified Buyer
Stop wiping. Start fixing the reason it keeps coming back.
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4.8 · 2,400+ reviews on★ Trustpilot
🏅Trusted by over 30,000 dog parents — for stains that wipes, filtered water, and food changes couldn't clear on their own.
🔬6 research-backed ingredients — Lutein, Zeaxanthin, Astaxanthin, Bilberry Extract, Cod Liver Oil, and Vitamin A — targeting irritation-driven tearing at the source.
🥩Beef-flavored chewable tablet — he'll take it straight from your hand. No pills, no powder, no drama.
"Topical wipes can only remove what's already stained. To stop new staining, you have to change the composition of the tears producing it — and that starts from the inside."
— Dr. M. Collins, DVM · GlowTail® Vet Consultant
Ships tomorrow if ordered within 3 hrs · Free Shipping
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Got Questions?
Frequently Asked Questions
Because wipes, water, and food changes all work on the outside — or reduce contributing factors. None of them directly address the two things that cause staining at the cellular level: porphyrins excreted in your dog's tears, and the yeast that feeds on the moist, pigmented fur. GlowTail® is formulated to target both internally, which is why it can work even after everything else hasn't.
Tear staining is caused primarily by porphyrins — iron-containing compounds excreted in tears, saliva, and urine. When they sit on light-colored fur in a moist environment, they oxidize to a rust-red color. Yeast overgrowth in the surrounding tissue deepens that color and makes it harder to remove. GlowTail® addresses this with blueberry extract and cranberry to reduce porphyrin levels, probiotics and yeast-fighting compounds to restore microbial balance, and marshmallow root to reduce the irritation-driven tearing that keeps the cycle going.
Yes — and that's exactly the dog GlowTail® works best for. If you're already wiping daily, using filtered water, and keeping the coat trimmed, the staining you're still seeing is coming from internal causes your routine can't reach. Adding a daily chewable is the internal counterpart to the external routine you've already built. Most consistent owners who add GlowTail® notice new staining slowing significantly within 3–4 weeks.
This is a completely valid concern. GlowTail® Tear Stain Support is made with 100% natural ingredients — no antibiotics, no tylosin, no harsh compounds. It supports the body's normal processes rather than suppressing them. If your dog has sudden changes in tearing, discharge, redness, or eye pain, please see your vet first — those can signal conditions a supplement won't and shouldn't treat. For cosmetic staining in an otherwise healthy dog, GlowTail® is gentle enough for long-term daily use.
Yes. Teething is one of the most common triggers for excess tearing in puppies — the pressure from incoming adult teeth stimulates tear ducts, and the staining is often temporary. GlowTail® is safe for puppies and can actually help manage the staining during this phase so it doesn't set into the fur. Most puppy-related staining resolves on its own by 9–12 months, and consistent use of GlowTail® during that window can significantly reduce how much staining develops in the first place.
Most owners notice new staining slowing within 3–4 weeks of daily use. Full results — meaning old stained fur growing out and clean fur growing in — take 8–12 weeks, depending on your dog's coat growth rate. The stained hair itself won't lighten on the dog; it has to grow out. But once the internal cause is addressed, new hair comes in clean and stays clean. Trimming the stained areas as they grow out accelerates the visible transformation significantly.
GlowTail® Tear Stain Support does not contain wheat, corn, soy, or dairy. The full ingredient list is printed on the label — no proprietary blends. If your dog has a known allergy, review the full ingredient panel before use and consult your vet. We believe you should know exactly what you're giving your dog, and we've made sure you can.
GlowTail® is a soft chewable tablet with a natural beef flavor — the vast majority of dogs take it directly from your hand without hesitation. For truly picky eaters, crumble it over their meal; the flavor carries through either way. If your dog won't eat it within the first 60 days, contact us for a full refund. No questions asked.
GlowTail® uses natural plant-based and probiotic ingredients that are generally well-tolerated alongside antihistamines like Zyrtec. However, if your dog is on prescription medications — particularly immunosuppressants, blood thinners, or antibiotics — we recommend checking with your vet before adding any new supplement. This is good practice for any supplement, not just ours.
Most tear stain products — wipes, powders, eye drops, grooming sprays — are designed to treat the visible staining. GlowTail® is formulated to treat the cause. If you've tried all the topical options and seen limited results, it's a strong signal that the problem is internal. The combination of probiotics, porphyrin-reducing antioxidants, and anti-inflammatory support in GlowTail® targets the mechanism, not just the appearance. And if it still doesn't work, the 60-day money-back guarantee means you have nothing to lose by trying.
1 chewable daily for dogs up to 25 lbs, 2 for 26–50 lbs, 3 for 51–74 lbs, and 4 for dogs over 75 lbs. Always give with food for best absorption and to avoid any stomach sensitivity. Consistent daily use is more important than the exact timing — just make it part of their meal routine.
We offer a 60-day satisfaction guarantee. If you're not completely satisfied with the results after giving it a fair run, contact our support team within 60 days of purchase for a full refund — no questions asked. We stand behind this formula completely.
Yes. Subscribe and save 20% on every order — because consistency is everything with this supplement. Subscriptions ship automatically so you never run out mid-routine, and you can pause, skip, or cancel anytime with no penalties or hassle.
Yes. GlowTail® Tear Stain Support is manufactured in the USA in a GMP-certified, FDA-registered facility. Full ingredient transparency — every ingredient and its amount is on the label. No proprietary blends.
You're already doing the work. Give it something to work with.
You wipe their eyes. You use filtered water. You've changed their food and tried the wipes. You clearly care — and that matters. But every day you spend fighting staining without addressing the internal cause is a day the cycle repeats. GlowTail® Tear Stain Support gives your daily routine the internal foundation it's been missing. One chewable. One habit. The clean face your dog deserves.
