Hair-loss prevention with Korean Seaweed?

[MegaNatural]

This is the Red Seaweed Shampoo I use. this is the closest thing I could find to Korean Red Seaweed when I looked a few months back. In the picture the shampoo is green but they send the Red Seaweed shampoo.

http://www.bohemia-style.com/Stop-Ha...poo-p-245.html

should I get this seweed one or

http://www.dslaboratories.com/revita/#