Collagen

Collagen is the most abundant protein in your dog’s body. It’s the structural glue that holds joints, bones, muscles, skin, and the gut lining together. But as dogs age, natural collagen production declines, which can lead to stiff joints, weaker bones, and digestive discomfort.

Four Leaf Rover’s Collagen for dogs is made from just one ingredient: 100% grass-fed, pasture-raised New Zealand beef collagen. Rich in Type I and Type II collagen, it delivers highly absorbable peptides and amino acids that support key systems in your dog’s body:

• Joint & Cartilage Support: helps promote healthy cartilage, smooth joint movement and overall mobility
• Bone Support: helps contribute to bone density and stability by supporting the bone matrix
• Gut Health: helps support gut lining integrity 

100% Collagen

Not all collagen is created equal, and the best collagen for dogs is often sourced from beef. Bovine collagen is a more complete and beneficial solution for joint, bone, and connective tissue health.

Four Leaf Rover offer 100% bovine collagen from pasture-raised, grass-fed cattle raised without hormones, pesticides, or mRNA vaccines. No fillers, no fluff.

• Bovine Cartilage Extract: rich in Type II collagen and naturally occurring chondroitin sulfate to support joints and connective tissue
• Cartilage-Derived Growth Factors (CDGFs): natural compounds that promote tissue repair and strengthen joint resilience over time
• Type II Collagen Peptides: highly absorbable peptides that reinforce joint structure, flexibility, and post-activity recovery
• Low Molecular Weight Chondroitin Sulfate: designed for optimal absorption and joint lubrication

Give orally once daily or as directed by your veterinarian.

Net Contents: 3 oz (84.9 g)

Net Contents: 3 oz (84.9 g)

Four Leaf Rover's mission is simple: to make the best products for your dog while protecting the planet. They stand for clean, natural products free from harmful additives and believe all dogs deserve access to affordable, eco-friendly solutions without compromising health. Proudly carrying the NASC Quality Seal, Four Leaf Rover meets the highest standards of safety and effectiveness. As a Plastic Negative company, they partner with rePurpose Global to remove twice the plastic waste they generate. Every ingredient and piece of packaging is chosen with sustainability in mind, ensuring minimal environmental impact.

Why is beef collagen a better choice for some dogs?

Beef collagen for dogs offers a more complete and bioavailable source of joint and connective tissue support. It contains both Type I and Type II collagen (key components of cartilage, ligaments, tendons, and bones) plus at least 20% naturally occurring chondroitin sulfate to help cushion joints and ease stiffness. It’s also rich in essential amino acids like glycine, proline, and hydroxyproline that support cartilage repair, healthy skin, and gut lining integrity.

Compared to marine collagen, which typically contains only Type I collagen and may carry a higher risk of contaminants, beef collagen is better suited for dogs needing broad structural support.

Why is bovine collagen better for dogs with sensitivities?

Marine collagens often come from multiple sources and carry a higher risk of contaminants or allergens. Four Leaf Rover’s single-ingredient beef collagen is pure, traceable, and minimally processed. Perfect for dogs with food sensitivities or owners who prioritize clean ingredients.

Can I give Collagen with other mobility products?

Yes! You can give Collagen with Four Leaf Rover Hip & Joint or Alice & Eli Mobility Magic products for a full array of naturally occurring glucosamine, chondroitin, collagen, and growth factors.