In our range "Specific care" we have the product BECOOL which could correspond to your mare.
This product does not sleep the horse, it does not affect performance.
It contains tryptophan, an essential amino acid in the regulation of stress, associated with magnesium, passionflower and chamomile.
It comes in liquid form to be mixed with the ration at the rate of 30 to 60ml per day for 2 to 4 weeks. The doses are modulated according to the reactions observed on the horse.
You can also administer it about 4 hours before a stressful situation for your horse: a transport in van ...