Well, if you really want to know...

Most people "making" glycerine based soap and selling it online are using melt and pour base, something like this SFIC Shaving Soap Base

and then adding essential fragrance oils like these in various amounts Essential Oils - Wholesale Supplies Plus.com

and then calling them their own formula and setting a huge mark up. Some will tweak the base by adding bentonite clay or lanolin or Shea butter. Those are better. cold process hot process (rendering fat and using lye and what not) are superior but are a lot more work and take a lot more know how and space to make.

I found this out when a cold process soap maker friend of mine looked into reproducing some popular shaving soaps at my request. She's too busy filling orders for what she already makes to go into shaving soaps but she pointed me to some wholesalers in case I wanted to do it myself. I frankly don't have the funds necessary for the initial investment or I would.