You need to put a lot of time in, about 2 hrs/day noogling 10-15 minutes at a time with 5 minutes massage in between and an additional 2 hrs/day just massage with flaxseed or safflower salad oil. And drink lots of water. This for best results. Usually some in the morning and the rest in the evening. Most people cannot find that much time so do what you can.
Oh, and make sure you lube up well with the oil for noogling too. Another tip, heat helps, hot shower or hair dryer on boobs (not too hot, just warm) and even warming the cups.