L-ASCORBIC ACID SODIUM SALT (SODIUM ASCORBATE) L-Ascorbic acid sodium salt (Sodium ascorbate), an electron donor, is an endogenous antioxidant agent. L-Ascorbic acid sodium salt selectively inhibits Cav3.2 channels with an IC50 of 6.5 �¼M. L-ascorbic acid sodium salt is also a collagen deposition enhancer and an elastogenesis inhibitor. For research use only.