Doppelherz aktiv Magnesium + Kalium 400 Direct

Doppelherz is a well-established German brand specializing in vitamins, minerals, and other dietary supplements. The brand's history dates back to 1919 when the pharmacist Josef Peter Hennes developed the original 'Doppelherz Energy Tonic' in Essen, Germany. The brand became widely recognizable through its distinctive logo featuring two hearts, symbolizing vitality and health.

Today, Doppelherz is the flagship brand of Queisser Pharma GmbH & Co. KG, a company headquartered in Flensburg, Germany. Queisser Pharma was formed through the merger of Alfred Queisser's pharmaceutical factory (founded in Hamburg in 1897) and Hennes's company. Since the late 1970s, Queisser Pharma has been part of the HGDF Familienholding (Hermann G. Dethleffsen), a long-standing family-owned business group based in Flensburg.

While the majority of Doppelherz products are manufactured at the company's main production facilities in Flensburg, the brand has a significant international presence, exporting to over 60 countries and utilizing various regional distribution partners or subsidiaries for local market needs. The 'Magnesium + Kalium 400 Direct' product shown is part of their 'aktiv' line, designed for easy consumption without water.