Holland & Barrett Magnesium Bisglycinate 375mg

Holland & Barrett (H&B) is one of the world's leading health and wellness retailers and the largest in Europe. The product shown, Magnesium Bisglycinate 375mg, is part of their own-brand collection of vitamins, minerals, and herbal supplements.

Originally founded in Bishop's Stortford, England, in 1870 by Alfred Slapps Barrett and William Holland, the brand has grown from a local grocery and clothing store into a global health powerhouse. While the brand remains deeply rooted in Britain, it is currently owned by L1 Retail, an investment arm of the international investment firm LetterOne.

Manufacturing for their house brands is primarily conducted in the United Kingdom to ensure high-quality standards, though ingredients are sourced globally. The brand is synonymous with high-street health shopping in the UK and continues to expand its digital and international presence under its current ownership.