Breastmilk for sale

Im planning to buy breastmilk kakilala ko naman po yung nagbebenta july 20 po ang oldest stock niya ng breastmilk and naka lagay po sa freezer ng 2 door fridge is it still safe to buy kahit medyo matagal na. Balak ko na po kasi bilhin lahat ng supply ng breastmilk niya.