Dr. med. Harald Pfeffer
Inspired by his rescue as a child, Harald Pfeffer committed himself to medicine. In 1976 he opened his own practice, which he handed over in 2003 to stay true to his vision "health belongs in the world, not within four walls". With Vitabay, that vision became reality. All our products are the result of more than half a century of medical knowledge, research and development. With his own patents, products and formulas he shapes not only Vitabay but the whole supplement sector.
FAQ
What is D-mannose and why should I take it?
D-mannose is a natural sugar found primarily in the urinary tract. It is frequently used to support the natural function of the urinary tract, especially in the prevention of recurrent bladder infections. Because it works directly with the body's natural processes, it is a gentle, plant-based option to support your health.
How do I take D-mannose powder?
The recommended serving suggestion is to stir one level teaspoon (approx. 2g) into water daily and drink. For acute symptoms, you can take up to one level teaspoon three times a day for two weeks. This allows for flexible use that suits your needs.
Can I also take D-mannose powder if I already have urinary tract problems?
D-mannose is often used to support the urinary tract. If you already have urinary tract problems, D-mannose can be a good addition to your daily routine. However, it is always advisable to consult a doctor before taking supplements, especially if you have existing health conditions.
Is the product really vegan and without additives?
Yes, our D-mannose powder is 100% vegan, natural, and un-irradiated. It contains no artificial additives, preservatives, or colorings and flavorings. We attach great importance to offering a pure and plant-based product manufactured to the highest quality.
How long does a pack of D-mannose powder last?
One pack contains enough powder for approximately 50 days if you use the product daily in the recommended amount of 2g. With increased intake (e.g., for acute symptoms), the duration will be reduced accordingly.



