Pure Majesty vs Back 40 Dogs: Which Liquid Collagen Is Better in New Zealand? (2026)

Quick answer: Both Pure Majesty and Back 40 Dogs make clean, filler-free liquid collagen for dogs — but they are not in the same weight class, and for a New Zealand dog owner one of them is far easier to actually get. Pure Majesty Pets is the most complete liquid collagen by far: a single 2 mL serving delivers dual collagen (462 mg hydrolysed Type I & III plus 48 mg clinical-dose undenatured Type II / UC-II) and a full supporting stack — micro-emulsified salmon oil (omega-3 EPA/DHA), MSM, L-glutamine, an S. boulardii postbiotic, low-molecular-weight hyaluronic acid and natural astaxanthin. That one bottle works skin, coat, joints and gut at the same time, and it ships free to New Zealand on DDP terms — duties and GST paid, nothing to pay the courier at the door. 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, and it ships within the United States only.

Back 40 Dogs is a United States brand that has made a name for itself with its "Fuel More Memories" positioning and a premium grass-fed liquid collagen with a loyal following. It is not sold through New Zealand retailers, and it does not ship here — so for a Kiwi buyer this is a comparison of formulas first, and of what you can actually order second. Pure Majesty Pets plays in the same premium, clean-label space and delivers to New Zealand. So if you are weighing one against the other from Auckland, Christchurch or anywhere in between, what actually separates them?

This comparison breaks down both brands on the criteria that matter: collagen source, supporting actives, clean-label standards, allergen profile, value, and — for Kiwi buyers — whether the product can reach your door at all.

TL;DR: Back 40 Dogs uses premium grass-fed collagen peptides with vitamin C, biotin and MSM — a solid 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 clinical-dose undenatured Type II (UC-II) and a researched supporting stack (salmon oil, MSM, L-glutamine, an S. boulardii postbiotic, low-molecular-weight HA and astaxanthin), all hydrolysed to <3,000 daltons with zero fillers. Back 40 Dogs leans into the "brand story" side; Pure Majesty leans into the "clinical transparency" side — it covers more pathways in one bottle, and it delivers to New Zealand.

At-a-Glance Comparison

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. The addition of biotin for coat, vitamin C for collagen synthesis, and MSM for joints makes their blend logically coherent.

Their fulfilment operation is tight (24-hour processing, 2–5 day US shipping), and reviews highlight responsive customer service. Brand voice is warm and dog-owner-centric.

Where it comes up short: a single-source collagen means you are hitting one collagen type primarily (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. And from a New Zealand address the practical issue comes first — their shipping is domestic to the United States.

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 Premium Collagen Drops — 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/serving: the structural collagens that rebuild the skin barrier and support coat shine, more than 2× the 150–220 mg a generic liquid collagen typically delivers, and hydrolysed to <3,000 daltons for absorption.
• Micro-emulsified Salmon Oil (omega-3 EPA/DHA) — ~126 mg/serving: the most consistently supported anti-inflammatory in canine research, emulsified so it absorbs better than a fish-oil capsule poured over kibble.
• Natural Astaxanthin — ~0.5 mg/serving: a potent antioxidant that helps protect skin and coat from oxidative stress (see antioxidant section below).

Joints & mobility.

• Undenatured Type II Collagen (UC-II) — 48 mg/serving: the cartilage-specific form studied in force-plate gait trials in dogs, dosed to clear a 40 mg end-of-shelf-life threshold. This is the headline difference — a single-source collagen does not contain UC-II at all.
• MSM (≥99.9% purity) — ~63 mg/serving: a sulfur donor for connective tissue and a recognised anti-inflammatory cofactor.
• Low-Molecular-Weight Hyaluronic Acid — ~8.4 mg/serving: joint lubrication and skin hydration, in the LMW form small enough to absorb across the gut wall.
• Omega-3 salmon oil contributes here too, supporting comfortable, mobile joints.

Gut & digestion.

• L-Glutamine — ~52 mg/serving: fuel for the gut-lining barrier that the gut–skin axis depends on.
• Tyndallised Saccharomyces boulardii postbiotic — ~21 mg/serving: a heat-treated postbiotic associated with stool quality and microbiome resilience. Almost no competitor combines collagen with a postbiotic in a single liquid.
• Pork Bone Broth Concentrate — ~126 mg/serving: naturally occurring glycine, proline and trace minerals that work synergistically with the hydrolysed peptides, plus Type I/III collagen supporting the gut lining.

Antioxidant & cofactor support.

• Natural Astaxanthin (from Haematococcus pluvialis) — ~0.5 mg/serving: one of the most potent natural antioxidants studied, paired with mixed tocopherols (natural Vitamin E) and sunflower lecithin to keep the lipids stable.
• Sodium Ascorbate (bioavailable Vitamin C) — ~4.2 mg/serving: a required cofactor for the dog's own collagen synthesis.
• Ginger Root Extract — ~4.2 mg/serving: 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 Drops deliver 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 undenatured UC-II at the clinically studied dose. With a single-source liquid like Back 40 Dogs, you are primarily getting Type I. If mobility rather than coat is the issue, the drops also pair with our Hip & Joint Chews for Dogs.

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 comparing two labels side by side.

3. Full-Body Targeting

Back 40 Dogs' MSM-biotin-vitamin C stack is a coat-and-joint blend. Our formulation specifically targets joints + skin + coat + gut lining + connective tissue — with a dedicated active behind each pathway (UC-II and MSM for joints, Type I/III collagen and salmon oil for skin and coat, L-glutamine and an S. boulardii postbiotic for the gut). For older dogs slowing down on the walk, Senior Dog Mobility Chews sit alongside the drops in the same routine.

4. Free Delivery to New Zealand, Duty Paid

Back 40 Dogs ships within the US. We ship free worldwide, New Zealand included, on DDP terms — duties and GST are paid before the parcel leaves, so there is nothing extra to pay the courier on arrival. That removes the two things that usually kill an overseas supplement order for a Kiwi buyer: the shipping line and the surprise border charge.

5. Independent Brand Focus

Pure Majesty's investment goes into formulation research and clinical transparency (peptide size, multi-type blend, published per-serving doses, ingredient rationale), versus Back 40 Dogs which leans more into brand identity. Every batch is made in North America to GMP standards with a certificate of analysis, and the range currently averages about 4.6/5 across roughly 1,085 reviews.

Which Should You Choose?

Choose Back 40 Dogs if:

• You love their "Fuel More Memories" brand
• Your dog's primary issue is coat/skin
• You are in the US, or have a US forwarding address, and do not need cross-border delivery
• You specifically want biotin in the formula

Choose Pure Majesty if:

• You want the most complete formula: multi-type collagen (I, II, III) plus omega-3, MSM, a gut postbiotic, HA and astaxanthin in one bottle
• Your dog has issues beyond skin/coat — joint stiffness, GI sensitivity
• You want published peptide size (bioavailability data)
• You are ordering from New Zealand and want free, duty-paid delivery with nothing to pay on the doorstep
• You want a formula explicitly designed for collagen synthesis system-wide

Buying Liquid Collagen for Dogs in New Zealand

Local reference: New Zealand's Ministry for Primary Industries (MPI) publishes the legal requirements for manufacturing, selling, using and importing pet food, animal feed and nutritional supplements, with separate rules for promotion and advertising. Reading those before you judge a marketing claim is a useful habit.

Because Back 40 Dogs does not ship here, most New Zealand shoppers end up comparing whatever joint and skin liquids the local pet retailers happen to stock. Useful local comparison points include Petdirect and Vetpost. Compare the disclosed ingredients, the amount per serving, the directions, the price per daily serving in NZD, and the returns and delivery terms. A retailer listing on its own is not clinical evidence — check whether the label actually states collagen type, peptide size and milligrams per serving, because most do not.

Seasonality: New Zealand sits in the southern hemisphere, so summer runs from December to February and the itch-and-shed months land opposite the northern-hemisphere calendar most supplement marketing is written around. A skin and coat routine begun in spring — September to November — is already established before the warm, humid coastal months, and joint support started in autumn is in place before the cold, damp part of the year that older dogs feel most.

What it costs and how it arrives: price the options on cost per daily serving in NZD rather than on the sticker price of the bottle, because serving size is weight-adjusted and bottles differ in size. Every Pure Majesty order is dispatched from North America, so allow for transit on a first order and reorder before the bottle runs out. Delivery is free worldwide on DDP terms, which means duties and GST are settled before dispatch: there is no customs invoice and no courier handling fee waiting at the door, and the checkout total is the whole cost.

Pure Majesty Pets sells direct, so you can read the full per-serving breakdown before ordering, and delivery to New Zealand is free and duty-paid. Discuss persistent or severe lameness, itching or gut upset with your own vet before changing anything.

Shop Liquid Collagen for Dogs in New Zealand

Local availability and prices can change. Supplements and routine-care products do not replace diagnosis or prescribed veterinary treatment.

Try Pure Majesty

Our Liquid Collagen Drops deliver a multi-type, multi-active formula at clinically meaningful doses — the most complete liquid collagen for dogs we know of. Made in North America under GMP with a certificate of analysis on every batch, rated about 4.6/5 across roughly 1,085 reviews, and shipped free worldwide on DDP terms.

Try Pure Majesty Liquid Collagen Drops →

Browse our full Dog Liquid Supplements & Drops collection, or look at Liquid Glucosamine for Dogs if joints are the priority and Dog Allergy Relief & Itchy Skin Chews if the skin is.

If digestion is part of the picture alongside the drops, our Liquid Probiotic for Dogs & Cats fits into the same daily routine, and Dog Yeast Infection Treatment Liquid is the one to look at when recurring skin flare-ups are the problem rather than general coat condition.

This comparison reflects publicly available ingredient information at 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.

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 clinical-dose undenatured UC-II — plus salmon oil, MSM, L-glutamine, an S. boulardii postbiotic, hyaluronic acid and astaxanthin for joints, skin, coat and gut in one formula. Back 40 Dogs is a single-source coat-and-joint formula. For broader multi-system support and published peptide size, Pure Majesty covers more pathways.

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

Pure Majesty Pets Liquid Collagen Drops are a comparable clean, filler-free liquid collagen that adds Type II and Type III collagen, a specified peptide size under 3,000 daltons, a multi-active supporting stack, and free worldwide shipping on DDP terms.

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 New Zealand?

Back 40 Dogs ships within the United States, so it is not straightforward to buy from a New Zealand address. Pure Majesty Pets ships free worldwide, New Zealand included, on DDP terms — duties and GST are paid up front, so there is nothing to pay when the parcel arrives.

Do I pay customs or GST on a Pure Majesty order in New Zealand?

No. Pure Majesty Pets ships on DDP terms, which means duties and taxes are settled before dispatch. The price shown at checkout is what you pay, with free worldwide delivery.

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.

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

Inside Pure Majesty Pets Premium Collagen Drops — 2026 Formula

Each 2 mL serving of Pure Majesty Pets Premium Collagen Drops 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 2× 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 repair.
• Undenatured Type II Collagen (UC-II): 48 mg per serving — designed to clear an industry-standard 40 mg end-of-shelf-life threshold validated against the Gupta 2012 force-plate clinical trial in dogs. Most generic "joint" liquids contain 0 mg of UC-II; only a small minority of premium products include it at all.
• Micro-emulsified Salmon Oil (Omega-3 EPA/DHA): ~126 mg per serving. Emulsified salmon oil is far better absorbed than the standard fish-oil capsules typical owners pour over kibble.
• Pork Bone Broth Concentrate (low-sodium, pet-grade): ~126 mg per serving — adds naturally occurring glycine, proline, and trace minerals that work synergistically with the hydrolysed peptides.
• MSM (methylsulfonylmethane, ≥ 99.9% purity): ~63 mg per serving — a sulfur donor for connective tissue and a recognised anti-inflammatory cofactor.
• L-Glutamine: ~52 mg per serving — supports the gut-lining barrier that the gut–skin axis depends on.
• Tyndallised Saccharomyces boulardii postbiotic: ~21 mg per serving — a heat-treated postbiotic strain associated with stool quality and microbiome resilience. Almost no competitor combines collagen with a postbiotic in a single liquid.
• Low-Molecular-Weight Hyaluronic Acid: ~8.4 mg per serving — the LMW form is small enough to be absorbed across the gut wall, unlike the high-molecular-weight HA most powder products use.
• Sodium Ascorbate (bioavailable Vitamin C): ~4.2 mg per serving — a required cofactor for endogenous collagen synthesis.
• Ginger Root Extract: ~4.2 mg per serving — a botanical adjunct with documented anti-inflammatory activity.
• Natural Astaxanthin (from Haematococcus pluvialis): ~0.5 mg per serving — one of the most potent natural antioxidants studied, paired here with mixed tocopherols (natural Vitamin E) and sunflower lecithin to keep the lipids stable.

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 addresses skin, coat, gut, and joint pathways simultaneously. Generic single-collagen liquids cover only one of those mechanisms. The supporting actives (salmon oil, MSM, HA, postbiotic, vitamin C, astaxanthin) are not there as filler — each has peer-reviewed canine literature behind its inclusion.

See our liquid collagen for dogs supplement →

Always consult your veterinarian before starting a new supplement, particularly if your dog has an existing medical condition.