Pure Majesty vs Back 40 Dogs: Best Liquid Collagen in Australia (2026)

Quick answer: Both Pure Majesty and Back 40 Dogs make clean, filler-free liquid collagen for dogs — but for Australian owners they are not in the same weight class. Pure Majesty Pets is the most popular liquid collagen for dogs and the most complete formula in this comparison: a single 2 mL serving delivers dual collagen (462 mg hydrolysed Type I & III plus 48 mg undenatured Type II / UC-II) and a full supporting stack — salmon oil and bone broth, MSM, hyaluronic acid, L-glutamine, a tyndallised S. boulardii postbiotic, vitamin C, ginger and astaxanthin. One bottle works skin, coat, joints and gut at the same time. Back 40 Dogs uses a single-source grass-fed peptide with vitamin C, biotin and MSM — a solid coat-and-joints formula, but a narrower one, built for the US market. Choose Pure Majesty for multi-system support, published peptide size, an A$47 bottle and free worldwide shipping — delivered to Australia with duties and GST prepaid (DDP), nothing to pay on delivery.

Back 40 Dogs has built a name with its "Fuel More Memories" positioning and a premium grass-fed liquid collagen that has earned a loyal following in the United States. Pure Majesty Pets plays in the same premium, clean-label space — and ships to Australian doorsteps from Cairns to Hobart. So if you are weighing one against the other from Sydney, Brisbane, Perth or a farm outside Toowoomba, what actually separates them?

This comparison breaks down both brands on the criteria that matter to an Australian dog owner: collagen source, supporting actives, clean-label standards, allergen profile, delivery to Australia, and value in A$. Where it helps, we also show how both stack up against the joint and coat products you will see on the shelf at Petbarn, Pet Circle and Petstock.

TL;DR: Back 40 Dogs uses premium grass-fed collagen peptides with vitamin C, biotin and MSM — a sensible joints-and-coat formula built around a single collagen type. Pure Majesty is the more complete formula by far: it pairs hydrolysed Type I & III collagen with 48 mg of undenatured Type II (UC-II) and a researched supporting stack (salmon oil, bone broth, MSM, hyaluronic acid, L-glutamine, an S. boulardii postbiotic, vitamin C, ginger and astaxanthin), hydrolysed to <3,000 daltons with zero fillers. Back 40 Dogs leans into the brand-story side; Pure Majesty leans into clinical transparency — covers more pathways in one bottle — and is the one that ships free to Australia with GST already paid.

At-a-Glance Comparison for Australian Owners

Where Back 40 Dogs Is Strong

Let's give Back 40 Dogs fair credit. Their formula is genuinely clean — no fillers, human-grade ingredients and a clear focus on coat and joint support. Adding biotin for coat, vitamin C for collagen synthesis and MSM for joints makes their blend logically coherent.

Their fulfilment operation is tight for American customers (fast processing and short domestic delivery windows), and reviews highlight responsive customer service. The brand voice is warm and dog-owner-centred.

Where it comes up short: a single-source collagen means you are mainly getting one collagen type (typically Type I from a bovine-hide peptide), without the cartilage-specific undenatured Type II benefit — unless you stack a separate joint supplement on top. For an Australian buyer there is a second problem: Back 40 Dogs is built around US delivery, so you are dealing with cross-border shipping, an exchange rate and possible import costs instead of a simple A$ checkout.

Where Pure Majesty Stands Apart

The clearest way to see the gap is to look at what is actually dissolved in each 2 mL serving of Pure Majesty Pets Liquid Collagen — and to group it by the job it does. A typical liquid collagen is a single-ingredient hydrolysed collagen working one pathway. Pure Majesty is a multi-active formula working four at once. Here is the ingredient-by-ingredient case, by benefit:

Skin & coat.

• Hydrolysed Collagen Peptides Type I & III — 462 mg per 2 mL: the structural collagens behind the skin barrier and a glossy coat, more than double the 150–220 mg a generic liquid collagen typically delivers, and hydrolysed to <3,000 daltons for absorption.
• Salmon oil + bone broth complex — 252 mg per 2 mL: omega-3 fatty acids from salmon oil — the most consistently supported nutritional anti-inflammatory in canine research — plus bone broth with naturally occurring glycine and proline.
• Vitamin C, ginger and astaxanthin — 9 mg per 2 mL: antioxidant and cofactor support that helps protect skin and coat from oxidative stress. That matters under the harsh Australian UV and dry summer heat that can leave coats brittle.

Joints & mobility.

• Undenatured Type II Collagen (UC-II) — 48 mg per 2 mL: the cartilage-specific form studied in force-plate gait trials in arthritic dogs. This is the headline difference — a single-source collagen does not contain UC-II at all.
• MSM + hyaluronic acid — 71 mg per 2 mL: a sulfur donor for connective tissue plus hyaluronic acid for joint lubrication and skin hydration.
• Salmon oil contributes here too, helping maintain comfortable, mobile joints.

Gut & digestion.

• L-glutamine + tyndallised Saccharomyces boulardii postbiotic — 73 mg per 2 mL: fuel for the gut-lining barrier that the gut–skin axis depends on, plus a heat-inactivated postbiotic associated with stool quality and microbiome resilience. Almost no competitor combines collagen with a postbiotic in a single liquid.
• Type I/III collagen also supplies glycine and proline that help maintain the gut lining.

Antioxidant & cofactor support.

• Astaxanthin — one of the most potent natural antioxidants studied.
• Vitamin C — a required cofactor for your dog's own collagen synthesis.
• Ginger root extract — a botanical adjunct with documented anti-inflammatory activity.

Back 40 Dogs covers part of the skin-and-joints column with biotin, vitamin C and MSM. Pure Majesty covers all four columns — skin & coat, joints, gut and antioxidant — in the same 2 mL. That is what "most complete" means here, ingredient by ingredient.

1. Multi-Type Collagen in One Bottle

Our Liquid Collagen for Dogs delivers Type I (skin, hair, nails), Type II (cartilage) and Type III (gut lining, connective tissue) in a single formula — and not just any Type II, but 48 mg of undenatured UC-II per 2 mL. With a single-source liquid like Back 40 Dogs, you are primarily getting Type I.

2. Published Bioavailability

Our peptides are specified at <3,000 daltons. Back 40 Dogs does not publish peptide size, which is a meaningful information gap when you are paying to import a product.

3. Full-Body Targeting

Back 40 Dogs' MSM-biotin-vitamin C stack is a coat-and-joint blend. Our formulation targets joints + skin + coat + gut lining + connective tissue — with a dedicated active behind each pathway (UC-II, MSM and hyaluronic acid for joints; Type I/III collagen and salmon oil for skin and coat; L-glutamine and an S. boulardii postbiotic for the gut).

4. Free Shipping to Australia, Duties & GST Prepaid

Back 40 Dogs is organised around US delivery. Pure Majesty ships free worldwide — and Australian orders travel DDP (delivered duty paid), so duties and GST are already included in the A$47 price. Nothing to pay the courier, no surprise invoice from customs, no currency conversion at checkout.

5. Independent Brand Focus

Pure Majesty's investment goes into formulation research and clinical transparency (peptide size, multi-type blend, published per-serving amounts, ingredient rationale, GMP manufacturing and a COA on every batch), whereas Back 40 Dogs leans more into brand identity.

How Both Compare With Joint and Coat Products Sold in Australia

Most Australian owners do not buy imported collagen in a vacuum — they compare it with what is on the shelf at Petbarn, Pet Circle (whose joint-care category listed 44 products when we checked), Petstock, PetO or the local chemist. Here is how the main local options compare with a collagen-first formula (prices seen on 7 October 2026; they change often):

The local brands are well-known names, and several are good at what they do. But none of them combines hydrolysed Type I & III collagen with undenatured Type II in one daily serving — and a Back 40 Dogs bottle will not do that either. If your goal is joints and skin, coat and gut from one product, Pure Majesty is the only option on this list that covers all of it, at a price that sits below several single-purpose joint products. For a deeper look at the category, see our guide to the best collagen for dogs in 2026 and our round-up of the best joint supplements for dogs.

Why Formula Breadth Matters for Australian Dogs

Australian conditions put real demands on skin, coat and joints. Summer runs December to February, and RSPCA Australia advises walking dogs early in the morning or late in the evening and testing the pavement with the back of your hand for five seconds before a walk. Many older dogs end up exercising less in the hottest months, which is exactly when stiff joints can stiffen further. Across the higher-rainfall parts of NSW, coastal Victoria and south-east Queensland, contact allergens like Wandering Trad and itchy reactions to buffalo grass or kikuyu are a common reason dogs scratch and lick. A formula that supports the skin barrier, coat and joints together suits that reality better than a single-pathway product.

Australia is also a nation of dog lovers: according to Animal Medicines Australia's Pets in Australia 2025 report, 49% of households have a dog — roughly 7.4 million dogs — and dog-owning households spend about A$2,520 a year on them. With that much going into food, vet visits and grooming, a single A$47 bottle that replaces two or three separate supplements is a sensible use of the budget.

Supplement Rules in Australia: What to Check on Any Label

In Australia, veterinary products are regulated by the APVMA (Australian Pesticides and Veterinary Medicines Authority). Nutritional supplements that make no disease-cure claims can be treated as "Excluded Nutritional or Digestive" products that do not need registration, while products making therapeutic claims need registration and supporting evidence. That is why you will see responsible brands — Pure Majesty included — say a supplement supports or helps maintain joint comfort rather than claiming to treat arthritis. Be wary of any imported product that promises to cure joint disease.

When comparing labels, check: the collagen types and the amount of each per serving; whether undenatured Type II is present and how much; the peptide size; whether the manufacturer runs GMP production and publishes a certificate of analysis; and the full ingredient list for allergens. Pure Majesty contains salmon oil and hydrolysed pork flavour, so dogs with a confirmed fish or pork sensitivity should be discussed with your vet first.

Which Should You Choose?

Choose Back 40 Dogs if:

• You love their "Fuel More Memories" brand
• Your dog's primary issue is coat or skin only
• You are happy to organise cross-border delivery from the US
• You specifically want biotin in the formula

Choose Pure Majesty if:

• You want the most complete formula: multi-type collagen (I, II, III) plus salmon oil, MSM, hyaluronic acid, a gut postbiotic and astaxanthin in one bottle
• Your dog has needs beyond skin and coat — joint stiffness, a sensitive gut, an ageing frame
• You want published peptide size and published per-serving amounts
• You live in Australia and want free shipping with duties and GST prepaid — nothing to pay on delivery
• You want GMP manufacturing with a COA on every batch, backed by ~4.6/5 from ~1,088 reviews

Try Pure Majesty in Australia

Our Liquid Collagen for Dogs delivers a multi-type, multi-active formula at meaningful doses — the most popular liquid collagen for dogs, and the most complete we know of. A$47 a bottle, free worldwide shipping, and Australian orders arrive with duties and GST prepaid.

Order Pure Majesty Liquid Collagen for delivery to Australia →

Browse our full Dog Liquid Supplements & Drops collection.

Weighing other brands too? Read our Pure Majesty vs Healthy Petz liquid collagen comparison, or our guide to glucosamine vs collagen for dogs.

This comparison reflects publicly available ingredient information at the time of writing. Both brands periodically update their formulas — always check the product label for the most current ingredient list before buying.

See our full range of collagen for dogs, or shop Pure Majesty liquid collagen for dogs directly.

Frequently Asked Questions

Is Back 40 Dogs liquid collagen good?

Back 40 Dogs is a clean, human-grade liquid collagen with vitamin C, biotin and MSM, focused mainly on coat and joint support. It uses a single-source collagen, so it primarily delivers one collagen type. It is a reasonable choice if coat and skin are your main concern and you are happy to import it from the US.

Pure Majesty vs Back 40 Dogs: which liquid collagen is better for dogs?

For overall completeness, Pure Majesty is better by a clear margin. It provides multi-type collagen (Types I, II and III) under 3,000 daltons — including 48 mg of undenatured UC-II per 2 mL — plus salmon oil, MSM, hyaluronic acid, L-glutamine, an S. boulardii postbiotic and astaxanthin for joints, skin, coat and gut in one formula. Back 40 Dogs is a single-source coat-and-joint formula.

What is a good alternative to Back 40 Dogs liquid collagen in Australia?

Pure Majesty Pets Liquid Collagen for Dogs is a clean, filler-free liquid collagen that adds Type II and Type III collagen, a specified peptide size under 3,000 daltons and a multi-active supporting stack. It costs A$47 and ships free to Australia with duties and GST prepaid.

Does Back 40 Dogs collagen contain multiple collagen types?

Based on publicly available information, Back 40 Dogs uses a single-source grass-fed collagen, which primarily provides Type I. Pure Majesty combines Types I, II and III in one bottle. Always check the current product label, as formulas can change.

Does Back 40 Dogs ship to Australia?

Back 40 Dogs is set up around delivery within the United States, so check their site for current international options and any import costs. Pure Majesty Pets ships free worldwide, and Australian orders arrive with duties and GST prepaid (DDP), so there is nothing to pay on delivery.

Can I buy Pure Majesty collagen at Petbarn or Pet Circle?

Pure Majesty is sold direct through its own store, which keeps the formula, the published per-serving amounts and the price consistent. A bottle is A$47 with free shipping to Australia, duties and GST included.

Scientific Sources & References

Both brands are grounded in peer-reviewed research on canine collagen supplementation:

1. Blees NR, et al. Collagen Hydrolysates as Nutritional Support in Canine Osteoarthritis: A Narrative Review. J Animal Physiology and Animal Nutrition. 2025. PMC11919810
2. Czajkowska A, et al. The oral intake of specific Bioactive Collagen Peptides improves gait and quality of life in canine osteoarthritis patients. PLOS ONE. 2024. PMC11412516
3. Colitti M, et al. Efficacy of Chondroprotective Food Supplements Based on Collagen Hydrolysate. PMC8541357
4. D'Altilio M, et al. Therapeutic efficacy and safety of undenatured type II collagen in arthritic dogs. Toxicology Mechanisms and Methods. 2007;17(4):189-196.
5. Deparle LA, et al. Efficacy and safety of UC-II in arthritic dogs. J Vet Pharmacol Ther. 2005;28(4):385-390.
6. Iwai K, et al. Identification of food-derived collagen peptides in human blood after oral ingestion. J Agric Food Chem. 2005;53(16):6531-6536.
7. RSPCA Australia. 4 ways to keep your dog cool this summer.
8. Animal Medicines Australia. Pets in Australia 2025.

Evidence note: peptide size, collagen type (I, II, III) and sourcing influence bioavailability. Consult your veterinarian before switching formulas.

Inside Pure Majesty Pets Liquid Collagen — 2026 Formula

Each 2 mL serving of Pure Majesty Pets Liquid Collagen for Dogs delivers a multi-active, dual-collagen profile that very few canine liquid supplements can match in 2026:

• Hydrolysed Collagen Peptides Type I & III: 462 mg per serving — more than double the typical generic liquid collagen, which usually delivers around 150–220 mg per serving. These are the structural collagen types involved in skin, coat, tendon and gut-lining support.
• Undenatured Type II Collagen (UC-II): 48 mg per serving — the cartilage-specific form studied in force-plate trials in arthritic dogs. Most generic "joint" liquids contain 0 mg of UC-II.
• Salmon oil + bone broth: 252 mg per serving — omega-3 fatty acids plus naturally occurring glycine, proline and trace minerals that work alongside the hydrolysed peptides.
• L-glutamine + tyndallised Saccharomyces boulardii postbiotic: 73 mg per serving — gut-lining support plus a heat-inactivated postbiotic (not a live probiotic).
• MSM + hyaluronic acid: 71 mg per serving — connective-tissue and joint-lubrication support.
• Vitamin C + ginger + astaxanthin: 9 mg per serving — collagen-synthesis cofactor, botanical adjunct and natural antioxidant.

Why this matters: the 2026 Pure Majesty Pets formula combines hydrolysed collagen Type I/III and undenatured Type II in a single liquid serving — a dual-collagen profile that supports skin, coat, gut and joint pathways simultaneously. Generic single-collagen liquids cover only one of those mechanisms. The supporting actives are not there as filler — each has peer-reviewed canine literature behind its inclusion. And for Australian owners it arrives free, with duties and GST prepaid.

Shop liquid collagen for dogs — A$47, free delivery to Australia →

This article is for informational purposes only and is not a substitute for professional veterinary advice. Always consult your veterinarian before starting a new supplement, particularly if your dog has an existing medical condition, is pregnant or nursing, or takes medication.