Why should I use these instead of breast pads?
Breast pads soak up milk which is then wasted, whereas the collectors allow you to collect milk to save, store and use at a later time.
Should I use the shells to collect let down?
Yes, the milk collection shells are a great tool to collect letdown on the opposite breast whilst feeding. They are a passive way of collecting milk, so if you don't actively leak whilst feeding but want to collect milk we recommend the Silicone Breast Pump