NAF Oestress LiquidNAF Oestress Liquid A fast acting liquid which compliments the mare's natural oestrus cycle by encouraging regularity and providing extracts of herbal ingredients that have been used for hundreds of years to support hormone balance. also provides bio available magnesium to relax muscle tension and encourage calmness. Also rich in natural antioxidants to support a healthy system. Oestress should be fed daily through spring and summer months but is also