I use Assos everytime for any ride. the jar directions are very clear on how and when to use. The two main benefits of using Assos is friction reduction and it's anti bacterial and anti fungual properties. All you need is to apply a thin film on the chamois this can even be done after washing before you hang them up to dry. If you use the after washing method I would apply some Assos creme to the areas, on your skin, where you notice friction just before riding. Assos works with a high quality chamois and helps it perform it's best. It won't make a bad chamois better.