Powerful Support for Skin, Ears & Paws
Premium Liquid Collagen
Stops itching & licking in 2-4 weeks
Rebuilds skin & coat at the root
400mg collagen for real result
17x absorption with hyaluronic acid
Free Shipping USA
90-Day Money-Back Guarantee
Donna K.
My vet said Bella's itching was just allergies we'd have to manage forever. Started Avellin figuring I had nothing to lose. By week three, the scratching had almost stopped. Last night she slept through the whole night without licking once. I just sat there listening to the quiet and cried. My girl is comfortable again.
90-Day Money Back Guarantee
If your dog doesn't show a visible difference, send the bottle back. Full refund. No questions, no hassle. We can offer that because we've watched this work for thousands of dogs, and we're betting it works for yours too.
The Science Behind It
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Most skin and coat supplements for dogs fail at one thing: delivery. Hard chews and powders rely on your dog's digestion to break down the actives, and most of it never reaches the skin.
That's why Avellin uses a cold-pressed liquid format with hydrolyzed collagen Types I, II, and III, paired with hyaluronic acid and glucosamine HCl. The peptides are pre-broken down and dispersed in liquid, so they bypass digestion and absorb directly. Up to 99% bioavailability vs. as little as 30% from chews.
Every drop delivers a clinical-grade dose of what a damaged skin barrier actually needs to rebuild and stop the itch-scratch cycle at the source.
Ingredients
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Every ingredient in Avellin is there for a reason. Delivered in acold-pressed liquidyour dog can actually absorb, not lose to digestion. We don't hide behind heat-processed chews, fillers, or vague "joint complexes." You get a transparent list of clinically supported ingredients, each dosed at a meaningful level and built to reach your dog's joints.
- Collagen Peptides: 400mg, Types I, II & III
- Glucosamine HCl: 20mg, Joint cushion & lubrication
- Hyaluronic Acid: Joint fluid support
- Cold-Pressed Liquid: Up to 99% absorption
- Premium Bovine: Premium Sourced Bovine
Is It Safe?
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Yes. Avellin is made with all-natural ingredients in a GMP-certified facility and is third-party lab tested for purity and potency. No artificial fillers, no synthetic preservatives, no fluff.
Collagen, glucosamine, and hyaluronic acid are well-tolerated by dogs of all sizes and breeds. However, if your dog is pregnant, nursing, or on prescription medication, we recommend consulting your veterinarian before starting any new supplement, just to be safe.
Shipping & Delivery
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We offer tracked shipping on all orders.
All orders are processed by our careful fulfillment team within 24 business hours.
Delivery times range from 5 to 10 business days depending on your location.
We've made returns super easy. Simply contact us at contact@tryavellin.com and we'll handle everything.
Premium Liquid Collagen
What Sets Our Collagen Apart
Most dog joint supplements sound the same. But there are critical differences in how they're made, dosed, and delivered that decide whether your dog actually feels the result. Here's why ours stands out:
Cold-Pressed Liquid for Real Absorption
Most chews, tablets, and powders lose potency in your dog’s gut. Avellin's cold-pressed liquid keeps peptides intact and pre-dispersed, helping up to 98% of the active material reach the skin versus as little as 12% from a standard chew.
5 Joint-Targeted Actives, Not a "Proprietary Blend"
Every dose delivers 400mg of Collagen Peptides (Types I, II & III)rebuild the skin barrier and connective tissue, 20mg of Glucosamine HCl to anchor the new structure, Hyaluronic Acid as a carrier agent that delivers collagen to the skin. Cold-pressed and sourced from pasture-raised, grass-fed bovine with no fillers or mystery blends.
Easy to Give, Even to Picky Dogs
Even the best supplement is useless if your dog won’t take it. Avellin's liquid mixes into food unnoticed, no chewing, no battles, and no wasted product, even for picky dogs.
Helping Over 52,000 Dogs Move Freely
The number one liquid collagen that actually works
Patricia R.,
58
Verified Buyer
"I've been looking for something to help Luna with her allergies since she gets itchy a lot and these supplements have been a great choice."
Premium Liquid Collagen
$165
Purchased on June 14th, 2026
Barbara M.,
65
Verified Buyer
"My dog loves this liquid on his food, it's so easy to use and really seems to be working to help with dry and itchy patches especially on his elbows and tail. I've noticed some of those spots looking a little better and his coat seems healthier."
Premium Liquid Collagen
$69.98 $165
Purchased on May 29th, 2026
Sandra J.,
72
Verified Buyer
"Since using Avellin Collagen my Ellie is scratching less and her skin health is much improved. Her coat is thicker with noticeably less shedding."
Product Name
$43.68 $55
Purchased on June 5th, 2026
Elaine V.,
62
Verified Buyer
"My dog has seasonal allergies and was very itchy. Her coat was very dull, and she had extremely flaky skin… I have seen a remarkable change. Her skin is not near as flaky, and her scratching drastically reduced. Her coat looks so much better."
Product Name
$69.98 $165
Purchased on July 8th, 2026
Frequently Asked Questions
Find answers to common questions about our products, shipping, returns, and more.
What makes this collagen supplement different?
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Unlike most brands that use hard chews and powders that lose material to digestion, we use a cold-pressed liquid format with collagen types I, II, and III plus hyaluronic acid. No fillers, no hard chews, just usable peptides your dog will actually take.
Does collagen really help with itching, hot spots, and skin allergies?
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Yes. The skin barrier works like a brick wall — skin cells are the bricks, collagen and lipids are the mortar. When the mortar cracks from allergies or environmental triggers, allergens get in, moisture escapes, and the itch-scratch cycle starts. Japanese studies show hydrolyzed collagen peptides can enhance skin barrier integrity by 22% in canine models. Avellin delivers those peptides intact so the barrier can physically rebuild — not just suppress the itch signal.
Why does this come in liquid form?
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Hard chews lose material to heat processing, fillers, and digestion before any of it reaches the joint. Liquid micro-peptides come pre-dispersed, so your dog's body absorbs more of what's on the label with less waste.
How long until I see results?
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Most pet parents report noticeable changes within 2 to 4 weeks of daily use — less scratching, reduced flakiness, calmer hot spots, and a shinier coat. Some dogs respond sooner, but consistent daily use is essential because barrier reconstruction is structural repair, not symptom suppression.
What's the correct dose and how should I give it?
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Follow the label, the daily amount depends on your dog's weight. Pour it over your dog's food once a day. Most dogs eat it like any other meal, no wrestling and no hidden pills.
Are there any side effects?
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Collagen is safe for most dogs. A few may experience mild stomach upset, which can usually be avoided by giving it with food. Always follow the directions on the label.
Is it safe to give with medications?
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If your dog is on blood thinners, anti-inflammatories, or has existing health concerns, speak with your vet before starting Avellin. It may interact with certain medications.
My dog tried collagen before and it didn't work. Why is this different?
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It's almost always a delivery problem, not a collagen problem. Most chews contain a fraction of a therapeutic dose, and heat extrusion can destroy up to 50% of the active material before it leaves the factory. Avellin is cold-pressed liquid, hydrolyzed to 2,000–5,000 Daltons, with triple-source collagen plus hyaluronic acid and glucosamine — the format, the dose, and the supporting ingredients are all built around actually reaching the skin.