Natural Solutions for Bone Optimal Bone Strength Benefit: Assists in the assimilation of calcium and other minerals to promote bone strength and maintain bone density.Contains a proprietary blend of Blackberry Vine (Rubus fructicosus) young shoots; Giant Redwood (Sequoia gigantea) young shoots; Red Spruce (Abies pectinata) buds; Calcaire de Versaille; Parathyroid.