Not familiar with that particular brand, but I started taking "Oceans Alive" . Only took it about a week.
I did feel more energy, and seemed to have better eyesight. Quit to do a ten day distilled water fast to flush what I thought was the start of a Kidney infection. The flush has worked so far so I will be adding the Phytoplankton to my morning smoothie again.
Read the web site you posted. They both say their's is the best. Go figure. LOL