Glossing serum confusion

I just got an email from Chaz about the glossing serum. It says:

"This brand new product from Chaz Dean is designed to nourish your hair, enhance your shine, and give you a smooth polished finish. Just a few drops applied to soaking wet hair either in combination with or after your styling creme to get a blowout you have to see to believe. Can also be used on dry hair to tame flyaways."

I am totally confused on how this is different than the finishing creme, besides consistency (serum vs. cream). Isn't the finishing cream similar? How is it different than the styling cream (and why would we need both)? Would this be a better option for those who battle frizz from humidity? If you do notblow dry your hair, will this work well still or is best for blow outs?

And please, I am not here to bash the product because I like all the options and variety of products so please don't post the same ol' post about "chaz said all you need is cc and now all this...blah blah blah" I truly would like to know the answer to these questions. It would be handy if Chaz created a chart comparing the products and giving suggestions on who the product is best for. Dr. Gross has something like that for the variety of skincare serums he has and I find things like that very helpful.