How long does the volume-boosting effect of Pantodil on the crown of the head last?

Lately, every time I wash my hair and see the piles of hair falling into the drain, it almost brings me to tears. ㅠㅠ I think it might be due to stress, but the volume at the crown of my head has completely flattened, and my parting seems to be getting wider, so I think I need to start taking care of my scalp. I've heard that Pantodil injections are excellent for providing nutrients, so I'm looking into them!

I heard it is packed with ingredients that stimulate hair follicle cells to help hair grow thick and strong. Haha. They say it improves the scalp environment itself, so it is effective not only for prevention but also for those whose hair has already thinned. I’m curious how long the effects of Pantodil really last after just one treatment.

Since it goes directly into the scalp, I'm scared it will probably hurt much more than getting it on my face haha. Would it be bearable if I used a numbing spray? If it works well, I want to get it consistently, but I'd like to know how many sessions usually take to get fuller hair, and if there are any special tips to make the Pantodil effect last longer.

I want to strengthen my hair roots and have thick hair before it's too late. I assume going to the clinic to have nutrients injected directly is the surefire way to go, rather than just using regular shampoo or supplements, right? My scalp feels really hot, so I'm hoping the treatment will help cool it down a bit. To those of you struggling with thinning hair like me, and those who found enlightenment after getting Pantodil injections, please share your stories!