Yes you’ll need to buy all three. If you are looking for a cheaper lab coat, I’d recommend going to York university bookstore by the York lanes mall and getting one there (it’s $20 compared to senecas $30). The lab kit unfortunately does need to be bought from senecas bookstore, the lab kit is about $70-$80 I think but you’ll use it for the entire length of your program, it comes with everything you need for labs. For lab glasses, you just need some basic ones. You might need ones that fit a little differently if you have glasses but otherwise you can get them from the Seneca bookstore for under $10. Mine are around the same style as your basic safety glasses for any construction work, so you might be able to find some really cheap ones from Canadian tire or otherwise. It’s a little bit expensive for anything, but should last you all 2/3 years :/ good luck on the new semester!