- YOHO MEKABU FUCOIDAN GMP certified Manufacturer also certified by the Consumer Affairs Agency, Government of Japan - 10 Bottles/ Box - 50 mL/ Bottles - Brand New. Sealed. - 100% Natural Fucoidan Extract; Exceptional Quality & High Effectiveness - Produced under extensive quality control. Fucoidan (Mekabu extract) 150mg Fucoidan (Mozuku extract) 75mg Agaricus Blazei powder and mycelium powder 50mg