Whats the best hair thickening shampoo for a middleaged man who's hair is extremley thinning out and fine?

I HATE TO SAY THIS BUT FROM THE ANCIENT BOOKS OF NAKIAJIMAOSINAKI IN JAPAN THE WISE MONK SED S.H.I.T!!!!!!!!!!!!!!! IS THE BEST FORM OF SHAMPOO. ALL YOU NEED TO DO IS PUT IT IN A BLENDER WITH SOME VANILLA ICE-CREAM AND MIX UNTIL A SOFT SOLUTION. AFTER RUB IT IN LIKE NORMAL. HOPE THIS HELPS =]Whats the best hair thickening shampoo for a middleaged man who's hair is extremley thinning out and fine?
i23 you can get it at walmart