Horizontal lines across my neck, not a direct result of aging itself, I'm only 32. What procedure will help? (Photos)

there are a lot of options for this Including fillers, threads, moorpheus, and lasers. I suggest seeing an expert and starting at home enlighten peels with MTS dermarolling. See emeragecosmetics.com where we do free skincare consults daily.  
With significant neck sagging you would need a neck/face lift with muscle tightening (platysmaplasty). at the same time lasers (fraxel,  co2 or erbium( or microneedling RF (fractora, intensif) can be . performed to improve the crepe skin or wrinkles.  You need a formal consultation, as the neck can be treated with a combination approach:
1. micro needling and lasers for texture
2. botox, disport or xeomin to help platysmal bands
3. intensif or fractora RF microneedling for crepe skin and lifting
4. fillers like belotero, restylane silk, juvederm volbella to improve lines and folds
5. neck/face lifting if sagging is prominent or early starting +/- platysmaplasty (muscle tightening)
6. J plasma/Renuvion, thermiRF, inmode facetite for internal tightening
7. ultherapy and thermage for external tightening
8. regular Venus legacy, exilis ultra, or inmode forma treatments with facials to maintain tightness
9. PDO novathreads or silhouette instalift cone threads for lifting and long-term collagen production
see an expert for a full evaluation and treatment plan based on your individual situation and goals.
Best, Dr. Emer

Hi there, you can treat this issue with a combination of Botox and Fillers for best result. Botox will help to relax the muscle on your neck and fillers can smoothen the appearance of your necklines.
You are advised to consult a dermatologist or physician for proper diagnosis and correct treatment. Hope this helps!

I would suggest either microneedling or fractional resurfacing laser treatments to smooth your horizontal lines.

Morpheus8 treatments should help improve this area.  You should see improvement as treatments progress.  We also recommend using medical grade skin care products and wearing sunscreen every day.

HelloI have had clients with similar situation, young age, having horizontal lines.I treated them with fillers and PRP and one treatment did the job .one patient treated similarly with addition of fraxel laser because had multiple lines. ages ranges 26-45y.Best

The existence of horizontal neck lines represents the folding of the neck with flexion of your vertebra. These lines are similar to the lines on  the palm of your hands. These lines exist in just about every not overweight individual. It is practically impossible to remove these lines in a surgical or a surgical way as they invariably return. The attempts to make these lines go away usually results in more noticeable deformities. There is nothing wrong with your neck and I hope this helps. Good luck from New York City plastic surgery

Hello and thanks for your question. You may need a combination of treatments to get the result you're after however as a starting point a very fine filler injected superficially is your best option. As part of a plan botox can be used as well as energy based devices as you suggest,  Best wishes