We had started him on horny goat weed, before you told us about L-arginine. We had just kept him on both. Well, recently he ran out of Horny women in Burbank (San Jose), CA HGW, and through general life craziness, we hadn't been able to get out to the store to get more. He's been popping massive boners during the night and in the morning. We saw an increase in that when he stated the L-arginine, but I think the HGW had actually been suppressing it a bit. We're going to leave off the HGW for awhile and how it goes with just the LA.