We give Novalac HA 1 to our son Novalac 1 month and just change the formula, the new milk (more beige winds down over who was white) is much more difficult to dissolve (because thicker). We had a lot of bites nipples because lump: hell. Lonctuo of Béaba filled his role well (we put the milk in the water, mix a first time, heat it and then re-mix a second time, only way not to have lumps it with milk). I read that it was necessary to change the batteries frequently and that it lacked reliable. Perhaps, but the price is reasonable and we DONT no choice. Otherwise lergonomie is good !!! I recommend it for thick milk, difficult to mix / dissolve, for others, this is totally unnecessary.
