ENDUR-C Vitamin C SR with Rose Hips is ideal if you want to fortify your body's antioxidant defenses, promote optimal immune, skin and nerve health, and maintain healthy blood vessel function and optimal blood flow.*The antioxidant effect of ENDUR-C helps neutralize free radicals that can harm cells, including the endothelial cells that line your blood vessels and help blood vessels relax and promote optimal blood flow.

ENDUR-C also helps recycle and reactivate vitamin E, another antioxidant.*ENDUR-C combines high-potency vitamin C with our one-of-a-kind extended-release tablet core to provide a slow, steady release of ascorbic acid over 5 to 7 hours.