Sustained Release Technology - BIO-Pharma Vitamin C 500 mg Long Effect 120 Capsules Antioxidants - BIO-Pharma Vitamin C 500 mg Long Effect 120 Capsules Immune System Support - BIO-Pharma Vitamin C 500 mg Long Effect 120 Capsules Collagen Synthesis Support - BIO-Pharma Vitamin C 500 mg Long Effect 120 Capsules