Instone Lean Fire EU Instone Lean Fire keeps your metabolism optimised even when operating on reduced calories and increases energy levels to support an active and healthy lifestyle. Lean Fire Directions Male: Begin by taking 1-2 capsules of lean fire twice daily before a meal and/or exercise. Gradually increase serving size to 3 capsules twice daily. Female: Begin by taking 1 capsule of lean fire twice daily before a meal and/or exercise. Gradually increase serving size to 2-3 capsules twice daily.