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A very popular supplement for the very moody mare, Oestress from NAF has always been a favourite amongst many of our customers, who struggle with their mares' mood swings! The supplement works in harmony with the natural oestrus cycle, and balances out the hormones with the help of carefully selected herbal components. As well as focusing on the hormone cycle, Oestress also contains magnesium, which targets any tension in the muscles and aids in the overall calmess of your mare. NAF advise that Oestress should be fed daily during Spring/Summer, and can be increased in unison with the oestrus cycle, and if needed, it can be fed all year round.