I'm curious about the duration of the hair loss treatment.

My hair loss has noticeably increased. I'm looking into hair loss treatments, and I'm wondering how long the effects last once I start. People around me say that treatments like injections or lasers definitely reduce hair loss and make hair thicker, so I'm interested, but I have no idea how long the results actually last. Don't hair loss treatments usually last a long time?

I wasn't sure if I have to go consistently for the rest of my life to maintain it, or if getting just a few intensive sessions would allow me to live without worry for a while. If it were the latter... I'm also worried that if I spend a lot of money starting this only to stop, I might go back to how I was before.

For those of you who have consistently received hair loss treatments, could you please give me some advice on how long the effects usually last?