GaiaThera Opti-MSM is an Excellent Source of Bioavailable Sulfur The primary function of Sulfur from MSM (methylsulfonylmethane) is transporting oxygen across your cell membranes. Without intracellular oxygen, your health declines and you may age sooner, rather than later. Oxygen Transportation Across Cell Membranes Promotes... Cellular respiration (conversion of nutrients into energy, then waste elimination) Healthy cell regeneration Recovery from fatigue Athletic performance Tissue rebuilding (joints and skin) Normal blood pressure Scar tissue reduction Pain reduction Damaged nerve regeneration - this is the short list. Cellular oxygen transport supports healthy cellular regeneration. It's essential to joint...