An all human-grade AviCalm food supplement that can help your birds during stressful times to reduce aggression, feather plucking and screaming especially successful when used in conjunction with Featheriffic; the lecithin in the Featheriffic boosts the effectiveness of the Avicalm and the B vitamins, flax and amino acids in the Featheriffic helps grow feathers back. It is non-toxic and cannot be overdosed and is FDA listed as safe for food. The active ingredient in AviCalm, L-Theanine, is used as a food additive to promote relaxation. The active ingredient in AviCalm, L-Theanine, is used as a food additive to promote relaxation.