I'm still a rookie at this...but I know I did not shave with Colgate toothpaste. I bought it from eBarbershop.com--it was described as a 'collector's item' and a great product. I spent >$5 for the soap puck because I used Colgate canned shaving cream in college ($1/can). Wow, was I wrong on that purchase. Tried it >10x with no success--it was demoted to shower duty thereafter.