I've had good luck with an FDA approved at home laser hair removal system. I'm mainly using it for facial hair. The hair that is left is a lot thinner than what was there before.
I had laser hair removal in a salon over a decade ago. At this point all the hair is grown back. I wanted to buy something where I could just give myself treatments at home.
This isn't the exact model I have, but I have the same brand. https://www.amazon.com/Remington-At-Home-Removal-Permanent-powerful/dp/B00HN6ILCI/ref=sr_1_6?dchild=1&keywords=remington+ipl&qid=1619124246&rdc=1&sr=8-6
Works good for me. Time consuming but I guess they all are.
https://www.amazon.com/dp/B00HN6ILCI/ref=cm_sw_r_cp_apa_fabc_YdSUFbHMTTBPR
Is this what you are talking about?