How Can I Address Deep Neck Creases? In My Early 20's.

Hi,The horizontal neck lines are a hereditary condition. None of the treatment options are perfect as neck lifting or other face lift surgeries. But include botulinum toxin and fillers help to some degree and it is temporary. Longer term options could involve golden needle radio frequency, surgery with stem cell riches fat grafting, other radiofrequency options like Thermi RF.  Liposuction to release the skin from the underlying muscle is also a good option. Again the expectactation should not be so high.
 I hope this helps
 

Thank you for your question!  A combination approach would give the most improvement. Nonsurgical options such as Kybella, PDO NovaThreads, and Ultherapy do well in combination for skin tightening, but the results are mild compared to surgical options.
I would recommend a VASER Hi-Definition Liposuction with ThermiRF, Renuvion (J Plasma) and InMode BodyTite to contour and tighten the chin and neck. A neck lift can be performed at the same time, if you're a good candidate. I suggest seeing a board-certified cosmetic dermatologist to develop a personalized treatment plan that works for you. Best, Dr. Emer

It is impossible to erase these completely, however you can work on minimizing them with good  skin care products, skin boosters and PRP.

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.  

These horizontal lines on the neck are very difficult to treat. These are hereditary lines and may get worse with age, but are often present even on very young people. Surgical neck lifting procedures do very little to affect these lines. Filler injections when combined with Botox and/or laser resurfacing treatments may help to soften the appearance of the lines somewhat, but there is no treatment to make them go away completely.
All the best,