Double Heart Active L-Carnitine Magnesium 500 + B12 DIRECT, 20 servings

Quantity Unit price Reference price
To 2 €5.95 * €185.94 * / 1 kg
From 3 €5.45 * €170.31 * / 1 kg
Content: 0.032 kg

*prices incl. VAT plus shipping costs

Ready to ship today,
Delivery time appr. 1-4 days²

Sold 14 times in the last month
Total price: 5.95 *
  • 610041
  • 30.06.2022
  • May contain traces of acidifiers, preservatives, stabilizers, sweeteners, aroma / flavors. Contains a source of phenylalanine.
  • 4009932131345
  • 13413
  • 16528654
  • Store dry and not above 25°C. Not suitable for children and adolescents, pregnant and nursing women and persons with impaired kidney function.
For your muscle + energy function from Doppelherz ..➤ Your health on safe hands... more

Double Heart Running Joints Bones

For your muscle + energy function from Doppelherz ..➤ Your health on safe hands

  • Magnesium for normal muscle function + energy metabolism
  • High dosage - for increased demand
  • Lactose-free and gluten-free
  • Suitable for vegetarians + vegans
  • With delicious lemon taste
  • Food supplements

Double Heart Logo

The challenges of everyday life and the physical strain of work or sport require energy and strong nerves. Just 1 sachet of Double Heart L-Carnitine + Magnesium 500 + B12 DIRECT supports a good supply of magnesium and B12, even in the case of increased requirements.
Physical well-being and performance are influenced by various factors. These include sufficient exercise and a healthy diet.

The modern dosage form for fast and direct intake: micro-pellets. The fine granulate beads can be taken at any time and any place without any liquid. This dosage form is therefore ideal for when you are on the move or have difficulty taking tablets.

Tasty and particularly easy to take, Doppelherz not only provides you with important nutrients but also tastes pleasantly fruity.

Information about L-Carnitine

L-Carnitine is an amino acid compound that can be produced in small amounts by the body.

The prerequisite for this is a good supply of the essential amino acid lysine. We also consume L-carnitine through our diet.

Information about vitamin B12

Vitamin B12 contributes to normal energy metabolism and to reducing fatigue and exhaustion. Vitamin B12 is equally important for cell division and blood formation as well as the function of the nervous system. In the human organism it is accumulated mainly in the liver and kidneys.

Magnesium storage during sport: Well-filled is half won!

Exercise is extremely important for us humans: for the heart, the circulation and the metabolism. It also protects against overweight and strengthens the bones. And: Sport promotes our well-being - as everyone who has run, swum or ridden a bike to the set goal knows!

Double heart Magnesium requirement

In order to be able to fully exploit their performance capabilities, people who are active in sports should make sure that their magnesium stores are always well filled, because the mineral has a positive effect on muscle function and muscle relaxation.

Magnesium is a vital mineral that the body cannot produce itself. Storage is only possible to a limited extent. Magnesium is vital for us.

Magnesium supports the normal energy metabolism and the normal function of the nervous system. The mineral contributes to electrolyte balance and normal muscle function.

And if you do your sport seriously, magnesium is also drawn from the body's own magnesium depots: On the one hand by the exudation of the mineral and on the other hand by the (positive) stress that the activity causes in the athlete.

The magnesium contained in the bags is available in micro-pellet form.

The application is also very easy and fast. Put the micro pellets directly on the tongue, let them melt slowly and enjoy the refreshing lemon taste!

Pay attention to an increased magnesium requirement

Magnesium contributes to normal muscle function and is therefore essential for muscle contraction and relaxation.

The muscles can signal us in different ways that the magnesium stores should be replenished. The first signs often appear in the calves and shoulders.

This can happen, for example, if you have a very one-sided and unbalanced diet. In addition, there are various groups of people whose magnesium requirements may be fundamentally increased:

  • Stressed-out working people and mothers: Their nerves are often tense and could well use additional magnesium!
  • Athletes: On the one hand they sweat out the important mineral and on the other hand they need it for muscle function.
  • People over 60: Your body no longer uses magnesium as effectively as before without a constant requirement.
  • Pregnant women: You must also supply the unborn child and its growing magnesium requirements.
Füllmenge (Gewicht): 32g
Füllmenge (Stück): 20
vegetarian: yes (V label)
drug: Nein
Gesundheit: Mineralstoffe & Vitamine, Muskeln & Knochen
country of origin: EU / non-EU Agriculture
milk-free products: Yes
glutenfreie Produkte: Ja
Shipping weight: 0,06 kg
Manufacturer: Queisser Pharma
Produktgruppe: Nahrungsergänzung/freiverkäufliche Arzneimittel
brand: Doppelherz
weitere Eigenschaften: freiverkäufliches Arzneimittel, glutenfrei, milchfrei, vegan
Available downloads:

Manufacturer contact: Queisser Pharma GmbH & Co. KG, Schleswiger Str. 74, 24941 Flensburg, Germany

Queisser Pharma FlensburgQueisser Pharma stands for healthy life and holistic well-being. As one of the leading German pharmaceutical companies, we can look back on more than 100 years of company history. At our headquarters in Flensburg, we develop, produce and market a wide range of selected products for the preservation and maintenance of health. Whether pharmaceuticals, medical devices, nutritional supplements or cosmetics - our range consists of high quality products.

Each and every employee personally stands for the quality level of the products of Queisser Pharma. Our customers trust our products. This trust is based on the supply of high-quality, needs-oriented products.

Our task is to meet the demands of our customers for quality every day anew.

The focus of our activities in Germany and abroad are high-quality products for the preservation of health.

Queisser Pharma sells a wide range of over-the-counter medicines and dietary supplements under the Doppelherz  brand  The products are sold in Germany in the pharmacy, in drugstores as well as the food retail trade.

In recent years, the product range has been steadily expanded to include innovative products, including the development of a wide range of vitamin and mineral preparations, which are characterized by ever new and intelligent compositions. Every day, customers opt for the company's quality products and make Doppelherz products one of the best-selling nutritional supplements in Germany.

The company history of Queisser Pharma

The company Queisser Pharma can look back on more than 100 years of company history. Comprehensive knowledge about health has a long tradition here.

The history of Queisser Pharma begins in 1897 in a small pharmaceutical factory in Hamburg. The graduate pharmacist Alfred Queisser had come from Lusatia in the district of Dresden to Hamburg to make his fortune as a manufacturer. He focused on the production of health and care products such as creams, liquid soap and toothpaste. Despite difficult circumstances, Alfred Queisser managed to continuously expand the company. He owed this to his extensive talents as a businessman, scientist and imaginative advertising expert, whom he united in one person.

The second root of today's Queisser Pharma was created by the Essen pharmacist Josef Peter Hennes. In 1919, he developed the original formula of today's Doppelherz® energy tonic from herbs and other natural ingredients. The tonic was produced and successfully marketed in the eponymous company founded by him.

Both houses eventually merged into "Queisser Pharma", which has been part of HGDF Familienholding Ltd. since the end of the 1970s. & Co. KG, a long-established Flensburg family business, whose parent company was founded in 1738 in Flensburg.

Queisser Pharma today

Since 1987, Queisser Pharma has its headquarters in Flensburg in the former production areas of a Rumherstellung. In addition to other brand products from Queisser, about 1 million liters of Doppelherz energy tonic are produced, bottled, packed and shipped in line with the market.

Queisser Pharma is guided by tradition and at the same time modern - with much grown experience and specialist knowledge, modern and innovative health products are regularly created. 

Demand for health products has been increasing for many decades. Our headquarters in Flensburg has therefore been continuously adapted and expanded to meet the steadily growing popularity. Here many of our products are manufactured, packed and shipped in modern production lines. From Flensburg the products reach all over Germany and all over the world. To date, we have grown to about 300 employees. This makes Queisser Pharma one of the biggest employers in the city of Flensburg.

Queisser logistics

The future of Queisser Pharma

The market for health is constantly changing. Health is becoming more and more important for every individual as well as for the social institutions.

The self-responsibility for the health increases as well as the consciousness to be able to influence the health and their continuance actively and independently. Increasing life expectancy and the rising share of older people are setting new trends and presenting the healthcare industry with new challenges. For a company involved in health products, there are great opportunities for the future.

Health awareness and demographic change

A modern medium-sized company like Queisser Pharma must actively change in this fast-paced world. A change that is characterized by major market changes, which are caused not least by the demographic development of the population structure in all countries of the world.

Never before have so many people become so old, while at the same time remaining so young, healthy and actively involved in social life. The proportion of over-60s to 100 people between the ages of 20 and 60 will almost double by 2030. In 2050, 78 out of 100 people will be over 60 years old.

Health care and personal responsibility

Life expectancy increases from generation to generation. Even today, the sixty-year-olds can look forward to more than 20 more years of life. With age, there is an interesting trend towards active health care, prophylaxis and personal responsibility. Clearly recognizable is the endeavor to provide your body with everything necessary to achieve a strong and active old age. People know that they can not leave their health today alone to the doctors. They have to take their health into their own hands and act on their own initiative and responsibility.

Composition ingredients   ingredient per... mehr
Nutritional values ingredients





per daily portion

(= 1 bag)

% NRV*
Magnesium 500 mg 133 %
vitamin B12 50 µg 2000 %
L-Carnitine 200 mg **
*Nutrient reference values according to EU regulation 1169/2011 related
**No nutrient reference values available


magnesium oxide, Filler sorbitol, L-carnitine L-tartrate, acidity regulator monosodium citrate, trimagnesium dicitrate, sweetener xylitol, flavoring, thickener sodium carboxymethyl cellulose, sweetener aspartame, Release agent Magnesium salts of fatty acids, sweeteners acesulfame K, cyanocobalamin

Recommended intake: Consume the contents of one sachet daily. Give the micro pellets... mehr

Recommended intake:

Consume the contents of one sachet daily. Give the micro pellets little by little directly on the tongue, let them melt slowly and swallow. Please open the bag in the direction of the arrow.

  • Do not exceed the recommended daily intake
  • Food supplements are no substitute for a balanced and varied diet and a healthy lifestyle.
  • Keep out of reach of small children
  • Not suitable for children and adolescents, pregnant women and nursing mothers and persons with impaired kidney function
  • Contains a phenylalanine source
  • May have a laxative effect if consumed in excess
  • Amounts above 250 mg of magnesium can have a laxative effect on sensitive people

Recommended consumption

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