Simple but still fun
Not really as involved as I was hoping.  You add a scent to an already made lotion, fill the syringe with the lotion, and put that into the little bottles.  The syringe was a little difficult for 9 and 4 year old to use, but we go it going.  Still giving it a 4 star because they had fun and that's what is most important.
Rating: 4 stars