I bought it for my knees. My hair and nails are doing great.

This review is for Duo – Grass-Fed Beef Liver & Bovine Cartilage Capsules: Freeze-Dried Whole-Food Organ Supplement, Type II Collagen Supplement for Joint Support, Mobility & Nutrient-Dense Energy (2 x 90caps)I recently picked up these capsules for joint support, and I’m already really pleased with them. The capsules are packed with nutrient-dense ingredients, combining whole-food freeze-dried beef liver with type II collagen from bovine cartilage, so I don’t have to take multiple supplements for joint support and energy. I usually take them with a meal, and I haven’t had any stomach issues at all.One thing I really appreciate is that there’s no weird smell or taste to these capsules—they go down easily and don’t have that strong organ-supplement vibe that some other products do. Since adding them to my routine, I’ve noticed a subtle but noticeable boost in my energy and a little extra ease in my joints, especially on more active days. The capsules are easy to swallow and convenient to take daily, which makes sticking to my regimen simple. Overall, it’s a solid, all-in-one supplement that feels like a thoughtful, high-quality addition to my wellness routine.

PRIMALRX Duo combines grass-fed beef liver and bovine cartilage into a convenient capsule form, providing a natural source of vitamins, minerals, and type II collagen. The freeze-dried whole-food formula supports joint health, mobility, and overall energy, making it a practical option for those seeking nutrient-dense supplementation without powders or powders or complicated preparation.The only minor thing is that the capsules are relatively large, so some may prefer taking them with plenty of water. Overall, it’s a high-quality, well-rounded supplement for those interested in organ-based nutrition and joint support.

I’ve been using this supplement for a while now, and I’m genuinely impressed with it. One of the first things I noticed, and really appreciate is that the capsules have no weird odor and are completely tasteless, which makes taking them so much easier. Because they’re in capsule form, they’re super easy to swallow, and I never have to deal with the unpleasant taste or smell that some supplements come with.I’ve also found them incredibly convenient to work into my daily routine. They feel clean, gentle, and effective, and I’ve noticed a positive difference without any stomach issues or aftertaste. Overall, this has been one of the smoothest, easiest-to-take supplements I’ve tried, and I’m really happy with the experience so far.What really sold me on this product, though, are the natural health benefits of grass‑fed beef liver and beef cartilage. Beef liver is one of the most nutrient‑dense foods available, naturally rich in Vitamin A, Vitamin B12, choline, and heme iron, which support brain health, immune function, and overall energy. Beef cartilage provides Type II collagen, glucosamine, chondroitin, and hyaluronic acid, all of which help promote joint comfort, mobility, and connective‑tissue support. This supplement combines those benefits into an easy daily dose, and I love that I can support my energy, immunity, and joints all at the same time.The 90 capsule supply is good for 30 days, dose is 3 capsules.

I wanted to use these for a few weeks before I reviewed them. The liver supplement has definitely replaced my vitamin B supplement, and my energy has been great. I really like that it's about as clean of a supplement as I can get too... no fillers, just the good stuff. As for the cartilage supplement, this has been more effective than any glucosamine supplement I've ever taken. I took a week off the glucosamine before I started taking this so I could see how it did. 1 day on the cartilage was proof, and it has remained remarkable. I'll definitely be reordering these supplements.

Getting humans to eat organs again seems like a sales pitch, but getting dogs to eat them is a no-brainer. As soon as I open this container, our dog is 100 miles an hour from anywhere on the property!Honestly, this is one of those "why didn't I think of that?" products. 1/2 scoop on their food, mix-it-in, k9 primal instincts satisfied, properly nourished (like nature intended). No synthetic drops, or junk-filled chews. And no masterchef skills required!Best part is, quality is top notch. All New Zealand sourced organs (best quality in the world), and made in the US at a GMP-certified facility. Thank you Primalrx! (says my dog)

Tasteless capsules are easy to swallow. I added to my regimen for low iron & for joint health. Two capsules per day have made a difference for me. Recommend 9/10

It definitely has helped and she is not longer chewing herself or has an odor.

The capsules are easy to swallow, and there is no strong “organ” taste or smell, which makes it much more practical than eating liver or cartilage directly (which I do). After a few weeks of daily use, I noticed my beard had less grey (which comes from the naturally occurring coper and zinc).These check all the right boxes: grass-fed and pasture-raised source, no fillers, no heat processing, no antibiotics, and no added chemicals. I also appreciate that it’s a whole-food supplement rather than a synthetic blend. If you want the nutritional benefits of liver and cartilage, but prefer a clean, convenient capsule form, this is an excellent choice.

This is a great option for additional nutrition if you make your own dog food, treats, or toppers. Or just added to their regular food for a boost! The organ benefits are astronomical! Dogs really need the vitamins and minerals they get from organ meat, which is often lacking in traditional kibble. It's a great texture for sprinkling, and the dogs love the smell and taste. Plus it is big allergen free, including poultry!

I don't like to make big claims about things that are not FDA approved, but these supplements do seem to have good quality ingredients. You have to take them for a while to see benefits, so I'm not going to comment on that yet. This is not something that provides an immediate benefit, in my opinion. You need to take them consistently for at least weeks to months before you get the full benefit. But I do think they are high quality supplements and have been taking them.

Most of us know that offal is some of the most nutrient dense foods we can eat, yet many of use just don't care for it. I'm one of those folk. Fortunately, with these capsules, I can get those nutrients easily and with no stomach upset or digestive distress. These don't repeat on me, either. I'd never know what was in them, they just get to work. I'm very impressed with this duo. A+

As with any supplement, it may take several months to see any actual benefits. These capsules don't have any taste on them, which is good compared to some capsules where you guys should taste what's inside. The ingredient list reads very well.

These supplements are clearly made for people who prefer whole-food sources rather than synthetic vitamins.Both the liver and cartilage capsules are freeze-dried, grass-fed, and come with a very clean ingredient list. There are no sweeteners, fillers, or artificial additives, which I really appreciate. The capsules are easy to swallow and have no taste.That said, these are not products you “feel” right away. The effects are subtle and gradual, more like nutritional support than a quick fix. This makes sense, since they are essentially real food in capsule form, not concentrated extracts.I think these are a good option for anyone looking for gentle, long-term support and who understands how whole-food supplements work. If you’re expecting immediate or dramatic results, these may not be the right choice.Overall, the quality matches the price, and the sourcing and simplicity are the main strengths here.

I’ve worked my way through quite a few organ-based supplements, and the PRIMALRX Duo stands out as one of the cleaner, more thoughtfully formulated combinations I’ve tried. Pairing grass fed beef liver with bovine cartilage makes sense nutritionally. One delivers a broad spectrum of vitamins and minerals while the other supports joints, mobility, and connective tissues. Having them packaged as two separate 90 count bottles is convenient for dosing and storage.The capsules themselves are easy to take with no aftertaste, no burping, and no oily residue like you get with some organ blends. I also appreciate that they’re freeze dried rather than heat processed, preserving more of the natural micronutrients.As for effects, I noticed two things after about a week of consistent use:• A steady, nutrient-dense kind of energy; not jittery or caffeinated, just feeling more topped up nutritionally.• Smoother joint comfort, especially in my knees first thing in the morning, which is where Type II collagen tends to shine.What really sells the product for me is the simplicity of the ingredient lists with no fillers, no synthetics, just whole food organ sources in capsule form. If you’re someone who wants the benefits of liver and cartilage without cooking or dealing with strong flavors, this is a very practical and clean option.Overall, it’s a balanced stack for daily vitality plus joint support, and it fits easily into a whole food focused supplement routine.