"Personal Labs" does not have "Study" service mentioned in its Tech Tree entry. I do consider it unintended or at least an oversight.
Was a major cause of headache yesterday as I tried to figure out illogical Hellerium dependency when planning a Still in new base. Apparently you can't build Still without researching Alchemy, you can't get Alchemy without Hellerium, and you can't research Hellerium without "Study", which requires Still. Only alternate way through this bottleneck (and only in starting base) is brute forcing RNG for Hellerium freebie, but that comes so much later I'd already have 8 bases fully set up with 1 empty space remaining - for Still.
I was able to overcome this problem via online BootyPedia (offline looks broken in L4) which told be about Personal Labs but this isn't very good or long term solution. Not to mention spoiler galore.
Service is clearly mentioned in BootyPedia however but the problem with that is obvious. Too much stuff happens between then and now that we forget and we're not savants to keep it all in our heads. So please add it in tech tree where it belongs, to bring it in line with other relevant buildings. While we're at it might as well add services as searchable string in existing tree viewer mechanic (so "medic" brings up Sickbay [f] for example).
UPDATE
Well shit, "Personal Labs [f]" does have "Study" mentioned... hehe. In light of this I'll put the last part in suggestion thread as even with the string there it didn't help all that much as you can see.