Thank you for your question! For crepey neck skin following weight loss, a combination of non-surgical treatments can effectively improve skin texture, promote firmness, and enhance collagen production. RF microneedling, such as Morpheus8, remains a popular choice. While Morpheus8 is highly effective, newer-generation RF microneedling devices offer greater comfort and precision. These advancements allow us to target multiple skin depths, providing controlled collagen stimulation and tightening, which is essential for restoring elasticity to crepey skin on the neck. Additionally, Renuvion is an excellent minimally invasive option for neck rejuvenation. It combines helium plasma and RF energy to achieve immediate skin contraction and long-lasting collagen stimulation. Patients often notice improved definition and reduced wrinkling within days, with results that continue to develop over time. This treatment is especially beneficial for those looking for a quick yet impactful option to address skin laxity without surgery. For a comprehensive approach, we often combine RF microneedling or Renuvion with maintenance treatments like transdermal RF (e.g., Exilis) to sustain results and support ongoing collagen production. This layered approach, especially when complemented by regenerative treatments and targeted skin products, can significantly enhance and prolong the benefits. Consulting with a skilled practitioner will help you find the right combination of treatments tailored to your skin's unique needs and goals.