[philipkglass]

Yes, MSG is MSG. Accent apparently has at least two products.

Pure MSG:

https://www.amazon.com/Accent-Flavor-Enhancer-lb-canister/dp...

And a seasoning mixture that contains MSG, salt, and a mixture of spices:

https://www.amazon.com/Sa-son-Accent-Seasoning-Original-Pack...

I have only ever seen the first kind of Accent before (crystals of pure MSG) so I too was initially confused about what the author meant when writing

I picked up a dusty bottle of Ac’cent-brand MSG at my corner bodega. I brought it home, made dinner, and stepped into the light. After a few months of passionate use, I levelled up from Ac’cent, which includes other flavorings besides MSG, to the more pure and exquisite Ajinomoto...