Losing 20 pounds is a significant accomplishment, and what you’re noticing is actually very common after weight loss, especially in the neck and jawline area where the skin is relatively thin and changes in facial fat distribution become more apparent. From your description, it sounds like you have mild early neck laxity rather than severe sagging, which is encouraging because treatments tend to work much better at this stage than when there is substantial excess skin. At 34 years old, your skin still has a meaningful capacity to produce collagen, so I would generally focus on collagen-stimulating and skin-tightening treatments before considering surgery. What I’d prioritize for someone your age 1. Radiofrequency microneedling (my first choice) For mild laxity under the chin and along the jawline, radiofrequency microneedling is often one of the most effective non-surgical options. It combines controlled microneedling with heat delivered into the deeper dermis, which can help: tighten mildly loose skin, improve skin texture, stimulate new collagen and elastin, and create a subtle lifting effect over several months. Most patients need 3–4 sessions spaced about 4–6 weeks apart, and the improvement is gradual rather than immediate. 2. Energy-based tightening devices If the laxity is a little more noticeable, treatments such as Morpheus8, Profound RF, or other bipolar RF tightening devices can provide somewhat stronger tightening than standard microneedling, though they also involve more downtime and cost. 3. Ultrasound-based tightening (Ultherapy) Ultherapy can be helpful for mild to moderate laxity, particularly when the goal is to tighten the deeper supporting tissues beneath the skin. Results are usually subtle and develop over 3–6 months. In younger patients with only early laxity, I often find RF microneedling gives a better balance of improvement, comfort, and value. What I would not jump to yet Based on your age and the degree of change you describe, I would not consider a neck lift or surgical skin excision as a first-line treatment unless there is significant excess skin that cannot retract on its own. I’d also be cautious about aggressive fat-dissolving treatments (such as Kybella) if the main issue is loose skin rather than excess fat, because reducing fat further can sometimes make laxity appear more noticeable. A few things that can make the area look worse After weight loss, people often become more aware of: platysmal banding (vertical neck muscle tension), loss of jawline support from the lower face, posture-related skin folding, and dehydration or rapid weight fluctuations. If your weight has been stable for only a short time, it’s worth knowing that the skin can continue to retract and remodel for 6–12 months after weight stabilization, especially in someone in their 30s. If this were my patient For a 34-year-old with mild post-weight-loss neck laxity and no major sagging, I would typically rank the options as: Radiofrequency microneedling → best overall first step Ultrasound or RF tightening device if additional tightening is desired Combination treatment (RF microneedling + topical retinoid + sunscreen) Surgery only if non-surgical treatments fail and laxity progresses significantly The good news is that early neck laxity at 34 is often quite treatable, and you’re seeking treatment at a stage where non-surgical collagen-stimulating approaches have the highest likelihood of producing a noticeable improvement. I would expect a well-chosen RF microneedling program to offer the most meaningful improvement in firmness and jawline definition without the risks and downtime of surgery.