I entered my 30s and my hairline has receded into an M-shape, so I am planning to get a hair loss treatment. Does it really help fine baby hairs grow back?

I've had the feeling my forehead was getting wider, and lately, every time I look in the mirror, I can see the receding hairline on both sides looking huge, and it's driving me crazy. It's stressful that my bangs split whenever the wind blows, and when I tie my hair up, the sides look so bare that I'm even considering using hair fibers. I feel like I really need to go to a hospital and get proper hair loss treatment before it's too late and my hair follicles close up completely.

What hair loss treatments are trending these days? I'm really curious if getting Zero has the effect of noticeably filling in the hairline.

Honestly, since it involves injections or machine stimulation of the scalp, I think the pain will be intense, and because it isn't a one-time thing, the cost is the biggest burden.

Has anyone actually settled at a clinic and received regular hair loss treatments to improve their hairline or receding hairline? I would appreciate honest comments from those with experience on whether you were truly satisfied with the procedures—to the point where you could visibly see your hair getting stronger—or if hair transplantation is the only solution!