sophisticated slow release tablets for longer lasting vitamin c,our strongest vitamin c tablet, useful for anyone taking large amounts daily ,released over 6 hours to help maintain levels in the blood for longer ,with bioflavonoids and rosehipsthis is our strongest vitamin c tablet and useful for anyone who wants to take a high dose of this fascinating vitamin every day, as long as you don\'t mind large tablets. if tablet size is a problem then we also sell 1000mg and 500mg vitamin c tablets, which are both smaller.however they have several important features in common, in particular they are time release which means the vitamin c is released slowly from the tablet over a period of 6hrs after swallowing. this helps to maintain blood levels of vitamin c higher for longer than normal tablets. also, our three tablets also contain bioflavonoids and rosehips, two natural ingredients believed to work well with vitamin c.vitamin c plays an important role in the normal functioning of the immune system, and helps to protect our cells from damage from reactive chemicals called free radicals.