How are the effects and treatment cycle of Liviheal, and how is the satisfaction with internally dry skin?

Whenever the seasons change, my face feels tight after washing and flaking starts from the inner part of my cheeks. Even if I apply two layers of moisturizer, the inner dryness returns by the afternoon. I feel like home care alone has reached its limit, so while looking into skin boosters, I came across a lot of talk about Libby Heal and am writing to inquire.

What I am most curious about is the effects of Libby Heal. I have heard that it is a procedure that replenishes moisture deep within the skin, so I would like to know what kind of changes I can expect for skin concerned with internal dryness and fine lines. Some reviews say the texture changes immediately after the procedure, while others say it improves gradually over 2 to 3 weeks, so I am also curious if there is significant individual variation.
Second, I would like to ask about the treatment cycle and recommended number of sessions. I would like to know how many sessions Libby Heal sets as the standard for the initial session, and whether an interval of 2 weeks or 4 weeks is appropriate. It would also be helpful if you could inform me of the duration of the effects and the follow-up care schedule.
Finally, regarding pain and downtime. I have heard that there is a stinging sensation since it is an injection; I am wondering if this is tolerable even without anesthesia, and if bruising or swelling will persist until the next day. The photo shows the hydrating ampoule and moisturizing cream I normally use; would using these products together help manage dryness after the Libby Heal procedure? I would appreciate advice from those with experience.