Supplements for mare in season

[Holz99]

Currently, I have a 9 year old mare who’s only just started to show signs of being in season which is proving a problem due to being covered previously when she was young causing another gelding to mount her due to her enticing him.
Wondering if there’s any supplements that have proven effective to calm down her seasons?
she has her own paddock but unwilling to stay in it constantly because she’s used to a big field and cannot go out with any other horses.

 

[Cortez]

You can talk to a vet, but seasons are completely natural and don't generally cause major problems unless the mare has a gynecological condition.