Lincoln Platinum Pro Harmon8 1.5kg. The Lincoln Platinum Pro Harmon8 targets the horses hormones to help your horse feel more relaxed during her season. The supplement contains 8 different active ingredients, including Vitamin B1, B6, Ginger, Magnesium, Calcium and Chastetree Berry which have been shown to improve female hormonal related behaviour. Harmon8 is made in a palatable formula and contains passionflower extracts proven to ease nervousness. 1.5kg will last approximately 30 days.