The Dirty Secret Behind Most Dog Supplements: White Labels, Hidden Ingredients, and Why It Matters for Your Dog
By Michael Koch, Founder · 92 Days LLC ·
Walk into any pet store or scroll through Amazon and you'll find hundreds of dog hip and joint supplements. Different brand names. Different packaging. Different price points. Different mascots. But here's what most pet parents don't know: a significant portion of them contain the exact same formula.
That's two thirds of everything on the shelf. And many of those contract manufacturers offer white label formulas — meaning dozens or even hundreds of brands can be selling the exact same product under different names. That's the white label industry — and it's more widespread in pet supplements than almost any other consumer category.
What Is White Labeling?
White labeling is when a manufacturer creates a generic product formula and sells it to multiple brands, who then put their own name and packaging on it. The brand you're buying from didn't create the formula. They didn't research the ingredients. They didn't choose the sourcing. They simply picked from a catalog of pre-made formulations, slapped their logo on it, and started selling.
In the pet supplement industry this is extraordinarily common. A single contract manufacturer might supply the exact same glucosamine-chondroitin-MSM blend to 50 different brands — all with different names, different packaging, and wildly different price points.
How Do They Hide It?
The most common tool is the proprietary blend. Instead of listing each ingredient with its exact amount, a brand lumps everything together under a blend name — "Hip & Joint Complex" or "Mobility Matrix" — and lists only the total weight of the blend, not the individual amounts.
This means you have no idea if your dog is getting a meaningful dose of glucosamine or a token amount added just so it can appear on the label. And because the formula is generic and purchased in bulk from a contract manufacturer, there's very little incentive for the brand to optimize or improve it.
The proprietary blend protects the manufacturer's formula — not your dog.
The Market Saturation Problem
The dog supplement market is projected to exceed $2 billion by 2027. That kind of growth attracts opportunists. The barrier to entry is low — find a contract manufacturer, pick a formula from their catalog, design some packaging, set up an Amazon store, and you're in business. No research required. No unique formulation. No transparency necessary.
The result is a market flooded with nearly identical products competing almost entirely on marketing spend and packaging design. The brand with the biggest ad budget wins — not the brand with the best formula.
For pet parents trying to make an informed decision, this is a nightmare. When every brand claims to be "premium," "veterinarian formulated," and "the best," and most of them are selling the same generic blend, how do you actually know what your dog is getting?
What to Look For Instead
Here's what separates a genuinely differentiated supplement from a white label product:
✓ Full ingredient disclosure — Every active ingredient listed with its exact amount per serving. No proprietary blends. No hiding behind "complexes."
✓ Sourcing transparency — Where does the glucosamine come from? Shellfish? Plant-based? The source matters for both efficacy and allergy concerns.
✓ Third-party testing — An independent lab, not the brand itself, verifies that what's on the label is actually in the product.
✓ Facility certifications — GMP, SQF, HACCP. These aren't just badges — they're audited standards that require real documentation and facility inspections.
✓ Manufacturing visibility — Can you actually see where and how the product is made? If a brand won't show you their facility, ask yourself why.
Why We Built Legacy Furmula™ Differently
Legacy Furmula™ was created because we lost dogs we loved deeply — and we believe better nutrition could have made a difference in their quality of life. That personal mission made it impossible for us to take the white label shortcut.
We worked directly with our manufacturer to develop a formula with 9 active ingredients — every one chosen for a specific purpose, every dose fully disclosed on the label. Our glucosamine is vegan and shellfish-free. Our facility is GMP, SQF, and HACCP certified. And we put a QR code on every single jar that takes you directly to a video of your dog's chews being made.
We call it Watch Us Make It™ — because trust should be earned, not assumed.
The white label industry is betting that pet parents won't look closely enough to notice the difference. We're betting they will.
Written by Michael Koch · Founder, 92 Days LLC
These statements have not been evaluated by the FDA. For educational purposes only.