Supports Immune Health! Vitamin C by Blackstone Labs, paired with our Liposomal Delivery System, is the most efficacious Vitamin C available on the market today. Vitamin C supports immune health, provides antioxidant support, and increases collagen production. Note: Manufacturers continually change product specifications. While we try our best to keep product descriptions up to date, they do not necessarily reflect the latest information available from the manufacturer. We are not responsible for incorrect or outdated product descriptions and/or images.