plnktn. is a contemporary brand that introduces Marine Phytoplankton into human nutrition. Even though Marine Phytoplankton has been around for a while, we noticed that most people never heard of it. We felt the urge to change that! That's why we started plnktn. 

With plnktn., we are able to present a product that stimulates a healthier lifestyle. And that makes us proud! 

Taking plnktn. means enjoying a healthy superfood full of natural nutrients. 

We dare to say that Marine Phytoplankton is the future of nutrition. Why? 
Because it is the perfect supplementation for your daily nutritional needs.

Find us on LinkedIn: 

Thom Siersema - Founder

I am an enthusiastic and motivated person, full of energy and passionate to spread the word about Marine Phytoplankton! This is how I would describe myself. As a young student, I was introduced to Marine Phytoplankton. In the beginning, I was sceptic. When people close to me experienced major health benefits, I knew I was wrong. What followed was a period of trial and error, orientation and personal consumption of Marine Phytoplankton. The final result? The start of: plnktn.


Alexander Rakic  - The Medic

I would describe myself as the quieter one. A bit too serious, however relentlessly dedicated to the things I am passionate about. One of these things is Marine Phytoplankton. As a friend of Thom, I was intrigued by his motivation, but as a Medical Doctor I was even more interested in the product. Due to tons of positive testimonials and adequate published research, I was happy to help building a solid scientific background for this great product. The final result? The start of: plnktn.