I suggest browsing a few supplier websites. For packaging, you'll see the categories of types of bottles(PET, HDPE, etc.. & the "shape" names: boston round, natural cylinder, etc.....) (maybe check out wholesalesuppliesplus, I know they have their containers listed by bottle/material type) As for bases & oils, etc....most sites will list the ingredients in their lotions & briefly tell you why some of the stand-out ingredients are good & how thier properties are helpful(wsp for this too). Then you can go on other sites to have them describe lotion/etc..ingredients. Some good sites to start reading would be: (& browse thru the entire sites & you'll find great information) www.lotioncrafter.com www.theherbarie.com http://www.candleandsoapstuff.com/inci.html http://www.oshun.ca/info.html www.soapnuts.com I know I'm missing one or two EXCELLENT sites, that I can't remember. Maybe someone else can chime in. Darn, they are on the tip of my tongue & I can't remember.