Wrinkles under the eyes can be treated with a variety of options. In some cases, the only solution is surgical intervention such as a lower eyelid lift. Laser skin resurfacing could help, but this depends on the patient. For laxity of the neck skin, there are MANY "non-invasive" options out there, but most patients end up spending a ton of money and wasting their time with these devices. In many cases, a neck lift is indicated to tighten the neck skin, and 44 is definitely not too young for this type of procedure. In some cases, a mini lift is all that is needed. Laser resurfacing on the neck can offer some degree of tightening, but this usually offers only very mild results in the neck. Be sure to see an expert like a facial plastic surgeon to review all of the surgical and non-surgical options in detail. All the best,