Premature neck sagging, what can I do to stop it. (photo)

Thank you for your question. It is good to hear that you maintain a healthy lifestyle, including a cream regimen. I suggest that you move consult with your board certified facial plastic surgeon to determine your candidacy for non-surgical treatment plans. 
Best wishes,

The neck can have deep horizontal wrinkles and creases even from an early age (genetics play a key role) as well as from sun damage and aging in almost everyone. They can be super annoying and are hard to get rid of.Surgically removing them is the best way to get rid of them but this can leave a lot of scars in very visible areas which most young people don’t want.These creases are usually at the skin level. There are several nonsurgical and surgical options to consider. Some can be done at the same time. Surgery combined with injections and laser treatments before or after surgery is usually the biggest difference.  For people not interested in surgery, the hyaluronic acid injections and laser treatments are the most reasonable options, maybe combined with a chemical peel.These procedures can be done safely in the office and the results are often very satisfying. An in-office private consultation and examination with a board-certified plastic surgeon would be the best way to fully  address your specific concerns and determine the right treatment plan.I hope this helps answer your question.  If it does, please take a moment to up vote this answer on the “respond” button on the top right.  

Some people require surgery to get the best improvement.  Non invasive options for improvement include:
botox, dysport or xeomin and/or fillers to help platysmal bandsthermage radiofrequencyultherapy high intensity ultrasoundPDO nova threads or instalift for liftingsculptra injections for collagen productionbtl exilis ultra, venus legacy, and thermi250 for constant collagen stimulationJ plasma or thermiRF internal tighteningI recommend getting a formal evaluation with an expert. Best, Dr. Emer

I would not recommend anything surgical to improve the wrinkles on your neck, but you could try one of the radio frequency treatments such as Fractora.  This uses micro needles to deliver heat that can cause skin contraction to help tighten it.  

Thank you for your question. Moisturizer and sun block are your friends. Maintaining a steady weight is important. Eventually something may needs to be done but it is premature at this time in my opinion. 

Dear Alicia,
many thanks for your question and the photo you posted.
The first thing to ask is if either or both of your parents have suffered with the same ageing of the neck? If the answer is yes, then this is I am afraid genetic and difficult to combat.
I would suggest that you use a good skin care regimen, such as that from ZO Medical for example, as your baseline before any treatment/intervention.
Your next step would be to consider Radiofrequency tightening or equivalent and see how this improves things. The point to note is that these improvements are only temporary and thus can be costly when needing repeating on a regular basis.
Another option could include a chemical peel or Laser resurfacing to tighten things up a little.
If your 'sagging' continues to worsen, then your next step in the ladder would be to consider thread lifts.
I would avoid any thought of surgery at your young age, but keep it in mind in the future as this will ultimately give you the most dramatic and long-lasting improvements and more "bang for your buck" - but as I say, you are a long way of requiring this.
You should seek the consultation and opinion of a Board certified Plastic surgeon that can listen to your specific concerns more thoroughly, examine you and talk you through the available options in more detail.
I wish too well on your path.
BW,

Marcus