By default, all Subscribe and Save products have up to 10% off. However, if the product is also on promotion whilst you have an active subscription both discounts will be applied consecutively. The additional discount will only apply when the product is on promotion. For example, if the product has a promotion of 5% off you would receive both this and the Subscribe and Save discount. If the 5% promotion has ended when your next subscription order is due only the Subscribe and Save discount will be applied.