no, it is just finished saponifying and now it needs to cure for approx 4 weeks. it is safe to use though once it no longer zaps, it just isnt as good a result as it will be 4 weeks from now.
HP is a lot of fun and the instant gratification is nice. it is a whole other monster with issues all it's own though, so do your research and dont expect your first batch to be to pretty :wink:
my first batch looked like petrified mash potatoes
HP soap is safe to use when it's done cooking, but I prefer to let it cure still for at least 3-4 weeks. The soap will get harder, more water will evaporate and it will last longer in the shower.