Effol - Horse BalmEffol Horse Balm Guaranteed to cool over a period of three hours, relaxes, promotes good circulation and activates after strenuous activity. Has a refreshing and vitalising effect in the case of stiff muscles and tension. The special two phase effect means that a lasting cooling effect can be felt immediately after application. This is succeeded by a pleasant heat sensation. This high degree of efficacy has been confirmed by thermographic pictures.