I do not really like milk derived. But some times it has no choice. There is a can bruitant, I felt very silly the first time in I pulled my milk ... a real cow milk. I did that when my daughter was suckling the other breast to increase flow automatically to the other: it works. It is handy that works with batteries but with a catch. Medela has specialized in this kind of product. See the rest of the products to match. If there are problems we must not hesitate to help do this by association. Breastfeeding should not be a constraint I recommend
