Is RYL by RAZ?
Yes, RYL is by RAZ. RAZ is the brand and manufacturer, and RYL is one of its model lines. The purse-shaped RYL Classic 35K is a RAZ product through and through, which is why it is often written as the RAZ RYL or the RAZ purse vape.
They are not two competing brands. RYL sits under RAZ, so a RYL vape and a RAZ vape can be the exact same device. The two labels sit on different lines of the same box.
How RYL and RAZ fit together
The cleanest way to picture it is a brand and its model. RAZ is the company name, the label that covers everything it makes. RYL is a specific line within that catalog, the one that produced the handbag-shaped 35K. So RYL being by RAZ is like a model being by its maker: expected, not surprising. The RYL badge tells you the line, and the RAZ name tells you the workshop it came out of.
This is also why the device carries several names at once. Called by its maker, it is a RAZ purse vape; called by its model, it is a RYL vape; read off the logo, it is an RL vape. All three describe the same authentic, lab-verified unit. For a side-by-side on the two names, the RYL vs RAZ page lays it out. No matter which name a listing leads with, the maker underneath stays RAZ.
Why people ask in the first place
The question comes up because the shell shows RYL while the wider packaging shows RAZ, so shoppers wonder whether they are dealing with one company or two. They are dealing with one. RAZ makes the device and uses RYL to name this particular line, the same way a single manufacturer sells several distinct models. Seeing both names on one purchase is normal, not a red flag.
Confirming the link matters when you are checking that a listing is genuine, since a real RAZ RYL comes with a scannable authentication code on the box. If you want the maker and its other lines, the who makes RYL vapes page covers them, and the what brand is the purse vape page gives the short answer. Once the brand-and-model link clicks, the RYL and RAZ labels stop competing for your attention and start describing the same box.