I don't use all the natural remedies, but I do use a couple.
Rescue Remedy = Shock
Celery Seed = Arthritis
Burdock - Also Arthritis
Rosehips = Preggo mares
Chamomile = Relaxation
Flax seed = Coats. Make em' shiny
I found these on this website :
Herbal horse remedies
And then I consulted a local expert before trying.....I already used rosehips on the dogs, so horses were no big deal