Doppelherz Magnesium 400 + B-Complex

Doppelherz Magnesium 400 + B-Complex is a dietary supplement in the form of effervescent tablets, specifically formulated to support energy metabolism and muscle function. The brand, recognizable by its iconic 'double heart' logo, has a rich heritage dating back to 1919 when pharmacist Josef Peter Hennes developed the original 'Doppelherz Energy Tonic' in Essen, Germany.

The product is manufactured by Queisser Pharma at its headquarters and production facilities in Flensburg, Germany. Queisser Pharma was formed through the merger of Hennes' company and the pharmaceutical factory founded by Alfred Queisser in Hamburg in 1897. Since the late 1970s, the brand and the company have been 100% owned by the HGDF (Herm. G. Dethleffsen) Family Holding, a long-established family business also based in Flensburg. Today, Doppelherz is one of Germany's leading health brands, offering a wide range of vitamins and minerals distributed globally.