Skin resurfacing: Collagen/elastin production and loss of volume in the face?

I appreciate your questions, but the answer to all of them is it depends. The right treatment is dependent on the patient’s specific concerns, goals and skin tone. A doctor that understands the importance of customizing treatments is the best provider for you. Choose a board-certified dermatologist who will take the time to perform a thorough assessment of your skin and have a detailed discussion about your precise needs and desired results. The doctor that tailors your treatment plan will be able to produce the best results. 

Thank you for sharing your questions. There are many treatments available, but the best one should be tailored to your specific needs. You should see an experienced Oculofacial Surgeon who uses multiple modalities to treat the skin and uses different fillers in order to achieve optimal results. One size doesn’t fit all. I hope this helps.Good luck,

There is no "single" response to your questions - skin resurfacing, best for collagen / elastin production and facial volume filling.
Without your pictures, it it impossible to provide your accurate information. You bring up many good questions. If you are serious about your facial concerns, you should seek a face-to-face consultation. 
Sincerely,
Michael Kulick MD
San Francisco, Ca