Equine Elixirs PRO BONO® Bone Support
Strengthen your horse's foundation from the inside out with Equine Elixirs PRO BONO® Bone Support— a comprehensive, science-backed bone health supplement formulated to support continuous bone remodeling, increase bone density, and reduce the risk of fractures in horses across every stage of life. Because soundness starts with the skeleton, PRO BONO® delivers the precise nutrients bones need to stay strong, resilient, and capable of handling the demands of training, competition, and everyday life.
Bone remodeling — the ongoing process by which old or damaged bone is replaced by new, healthy bone — is essential to long-term soundness. PRO BONO® addresses this process directly with a bioavailable source of Vitamin K, which plays a critical role in activating osteocalcin, the protein responsible for binding minerals and collagen together within the bone matrix. Research confirms that inadequate Vitamin K intake is directly linked to low bone density and increased fracture risk — and horses removed from Vitamin K-rich pasture can experience measurable reductions in bone density in as little as 7 to 10 days. PRO BONO® fills this critical nutritional gap year-round.
Unlike Vitamin K1 found in fresh pasture — which is unstable, low in bioavailability, and rapidly depleted when grass is made into hay — PRO BONO® provides a highly bioavailable form of Vitamin K your horse can actually absorb and use. Combined with Vitamin D3 to facilitate calcium absorption and maintain the calcium-to-phosphorus balance essential for proper bone mineralization, and Calcium sourced from Lithothamnion red marine algae for superior bioavailability and bone formation support, PRO BONO® delivers a complete, synergistic approach to skeletal health.
Hydrolyzed Collagen, Phosphorus, and Magnesium round out the formula, supporting not only strong bone structure but healthy cartilage that is both durable and flexible — protecting joints and connective tissue alongside the skeleton.
PRO BONO® benefits a wide range of horses: young horses in active growth, horses with limited access to fresh pasture, horses on stall rest, broodmares supporting fetal bone development, horses recovering from bone or soft tissue injuries, and performance horses in heavy training.
Horse show safe, FEI lab tested, and picky-eater approved — PRO BONO® is trusted support you can count on, season after season.
Key Features:
- Supports continuous bone remodeling and long-term skeletal soundness
- Bioavailable Vitamin K to activate osteocalcin and support bone mineral binding
- Vitamin D3 for calcium absorption and calcium-phosphorus balance
- Calcium from Lithothamnion red marine algae for superior bioavailability
- Hydrolyzed Collagen for strong, resilient bone and cartilage
- Benefits growing horses, broodmares, horses on stall rest, and horses in heavy training
- Key ingredients: Hydrolyzed Collagen, Vitamin K1, Vitamin D3, Calcium, Phosphorus, Magnesium
- Horse show safe — contains no prohibited substances
- Lab tested and drug screened by an FEI-recognized laboratory
- Picky eater approved





