Meet Dr. Han Siem

Ensuring Your Supplement Safety with Vanan Herbal

At Vanan Herbal, your health is our priority. We’re proud to introduce Dr. Han Siem, a pharmacist with over 30 years of experience and a specialist in interactions between regular medicines, nutritional supplements, and herbs.

He runs the Huizerapotheek and deVitamineApotheek, supplying top-quality supplements to over 40,000 patients in the Netherlands and Belgium. With a unique focus on medicine-supplement interactions, he collaborates with 300 therapists and has authored over 40 publications on the topic.

Now, you can verify your supplements’ safety through his expertise using this contact form to communicate with him directly.