How many sessions of Livihill do I need to feel the effects?

Recently, while looking into various treatments to properly start taking care of my skin, I came across a procedure called Libby Heal. My skin has lost its elasticity compared to before, and I am starting to get a little concerned about fine lines, so I am thinking of getting professional care rather than just doing simple home care.

However, when looking at reviews for Libby Hill, opinions are divided between those who were satisfied after just one session and those who said multiple sessions were necessary for good results, so I am curious about the actual situation. I would like to know what changes are most noticeable after a single treatment, and whether skin texture or elasticity also improves noticeably after multiple sessions.

I am also curious about how to determine the treatment intervals for Libby Heal. I would like to hear opinions from those with experience on whether it is better to receive treatments consistently at regular intervals, or if it is also acceptable to receive them only when my skin condition worsens.

Cost is a constant concern for me, so I am debating whether to purchase a multi-session package right away or try just one session of Liviheal first to see if it suits my skin before proceeding with more. For those who have actually received multiple treatments, I would appreciate it if you could let me know at what session level your satisfaction began to increase. Please share honest reviews regarding the effectiveness and how long the results last.