Affordable permanent or long‑lasting straightening cream? Longer than Kativa 12‑week

I’m looking for a permanent or long‑lasting straightening cream that lasts longer than the Kativa 12‑week treatment. My hair is wavy, frizzy, and dry, and I’ve used relaxers before.

I found some cheap straightening creams on AliExpress, but I’m not sure if they’re effective. If anyone has tried them or knows a good affordable option that gives long‑lasting straight results, I’d appreciate your feedback.

Mainly trying to find out which ones actually work.