How K9·1 Works: 7 Actives, Fully Dosed

Every K9·1 sachet is the same fixed daily protocol — not a personalised blend, because the actives that matter are the actives that matter. Personalisation lives in the Assessment and in onboarding, not in the powder.

One sachet a day, mixed into food. That’s the whole ritual.

Hydrolysed collagen peptides are short, bioavailable amino-acid chains that signal the body to lay down its own cartilage, tendon and ligament tissue. In dogs, randomised trials have measured improvements in mobility and comfort within 8–12 weeks at doses in this range. We use a specific bioactive collagen fraction rather than generic collagen powder — the molecular weight matters for the signalling effect.

Most generic “joint chews” either don’t contain bioactive collagen at all, or contain a fraction of the studied dose tucked inside a proprietary blend.

Perna canaliculus, the New Zealand green-lipped mussel, is one of the most studied whole-food joint ingredients in dogs. It contributes a natural blend of omega-3 fatty acids, glycosaminoglycans and a small amount of chondroitin — closer to how the body actually uses these compounds than isolated single-ingredient supplementation. Multiple canine trials report improved owner-rated mobility scores at clinically relevant doses.

We source from sustainable New Zealand aquaculture, freeze-dried at low temperature to preserve activity.

This is the single most-studied joint and coat nutrient in dogs. EPA and DHA — the long-chain omega-3s found in marine sources, not the short-chain ALA in flax — modulate the inflammatory pathways that drive cartilage breakdown, dull coats, and dry, flaky skin. Controlled trials in dogs with osteoarthritis have shown measurable improvements in weight-bearing and comfort at doses in this range.

The number to look for on a label is the combined EPA + DHA, not the total fish oil volume. “Fish oil 1,000 mg” on a competing label often means as little as 100–150 mg of the actives that actually matter. K9·1 lists 900 mg of combined EPA + DHA per sachet for that reason.

Roughly 70–80% of the immune system lives in the gut. A diverse, well-supported microbiome is one of the strongest levers for everyday digestion, stool quality, and immune resilience. We use a multi-strain blend rather than a single-strain product because the canine literature consistently shows broader-spectrum results with diverse strains, and a viable CFU count delivered to the gut is what matters — not the number printed on the box at manufacture.

The probiotic is microencapsulated for survival through stomach acid — another point where many products quietly under-deliver.

Vitamin E is the body’s primary fat-soluble antioxidant — it also stabilises the long-chain omega-3s in the formula so they reach the dog intact rather than oxidising on the way. We use mixed tocopherols (alpha, beta, gamma, delta) rather than synthetic alpha-tocopherol alone, because the natural tocopherol family has a broader antioxidant profile.

Three trace minerals where deficiency reliably shows up in the skin, coat and immune system long before it shows up in bloodwork. Chelated (bound to amino acids) is the bioavailable form — the body absorbs and uses it far more efficiently than cheaper inorganic mineral salts. Doses are kept at supportive, not heroic, levels — trace minerals follow a U-shaped curve where too much is as bad as too little.

The functional-mushroom category gets oversold elsewhere; we use it carefully. Reishi (Ganoderma lucidum) and turkey-tail (Trametes versicolor) are two of the most studied adaptogenic mushrooms, with a body of evidence around immune modulation and healthy ageing. We use dual-extracted, beta-glucan-standardised material so the active polysaccharides are actually present — the cheap mushroom powders on the market are usually milled mycelium on grain, with negligible beta-glucan content.

This is the “long view” ingredient in the formula. It’s not promising miracles — it’s a quiet support layer for the systems that matter most over years, not weeks.

A few things we left out, on purpose:

• Synthetic flavourings and colourings. The sachet is odour-light by design — nothing added to mask under-dosing.
• Cheap fillers and gums. No maltodextrin bulkers, no carrageenan.
• Proprietary blends. Every active is named with a milligram dose. We’d rather lose the sale to a customer who wants to do their own homework than hide our math.
• Ingredients with thin evidence in dogs. The category is full of trendy adds — CBD blends, exotic herbs — that don’t yet have the canine data to justify a place in a daily formula. If that changes, the formula changes.

One sachet, once a day, mixed into food. Wet food works perfectly; a spoon of plain yogurt or a splash of warm bone broth carries it just as well into kibble. There’s no loading phase, no measuring, no rotating with anything.

The honest expectation: the first week or two is about your dog accepting the routine. The interesting changes — an easier rise in the morning, a coat people start commenting on, calmer digestion — tend to show up between weeks four and twelve, in line with what the underlying ingredient literature would predict.