AlgeaFert Liquid K+ is a highly concentrated liquid extract, it too a product from Norwegian Ascophyllum nodosum.
This brown seaweed i s the best raw material that can be used for the extracts because it ensures the maximum concentration of active ingredients.
The extraction process is carefully controlled in order to assure the utmost degree of solubilisation of the natural elements in the seaweed and guarantee top extract quality.  
Furthermore AlgeaFert Liquid K+ is richer in Potassium and Betaine than AlgeaFert Liquid.