How long does Volneumer last?

I found out about Volneumer while comparing various procedures, and since it is my first time receiving it, I am most curious about how long the effects last.

I am curious about how long the effects of Volneumer typically last after a single treatment. I would also like to know if the duration of the changes felt immediately after the procedure differs from the maintenance of the improved elasticity that appears over time.

I am also curious if the duration of the effects varies significantly depending on individual skin condition, age, and the degree of sagging. I would like to know if the effects tend to fade quickly in cases of severe skin sagging, or if they last longer for those with good skin elasticity.