: Highly rated by BBC Good Food as a "Star Buy" for its high potency and added plant compounds that aid absorption.

: Most adults need 65–90mg daily, but supplements often come in 500mg–1000mg . The body can't store Vitamin C, so anything excess is usually flushed out.

: Look for Bioflavonoids or Rosehips on the label; these naturally occurring compounds help your body use the vitamin more effectively.