Ester-C esterified vitamin C of Solgar is a non-acidic form of vitamin C containing extra citrus citrifolia, aserola and hartworms and routine for enhanced absorption by the body. Natural metabolites of Vitamin C L-threonate, L-Lyxonate and L-xylonic acid help it get into the bloodstream faster, in larger quantities and with fewer losses, resulting in Ester-C absorbing about four times more, twice as fast and remain in the circulation twice as much as normal vitamin C.
Time Release Vitamin C 1000mg. These tablets are specially formulated to release the vitamin C gradually over 6-8 hours after swallowing, which means that the absorption of vitamin C into the bloodstream also occurs gradually. This is believed to create a more stable level of vitamin C in the blood for a longer period.