The results are evident after two to three months as new collagen forms to lift skin. Results may improve over the following three to six months and can last a year. https://ultherapy.com/how-ultrasound-skin-lifting-tightening-works/ ·      Enerjet (Kinetic lift) EnerJet Kinetic Facelift is a non-surgical skin tightening procedure the uses a high-pressure jet of air (150m/sec) that injects hyaluronic acid (HA), a healing compound, into the superficial muscular aponeutoric system (SMAS) which is located below the dermis. This induces a deep volumetric microtrauma effect which induces a cascade of wound healing in the subcutaneous tissue. This results  to skin tightening or face-lift with improved jawline contour, midface profile and nasolabial folds; lifted cheeks, jowls and brow; tighter upper face; improved skin quality; smoother fine lines and wrinkles; and improved facial muscle tone.  It has long lasting results, minimal downtime, minimal pain and low risk of side effects such as post-inflammatory hyperpigmentation (PIH). ·      Platelet-rich plasma or Plasma therapy  (facial stem cell regeneration) Plasma from your own blood, which  is rich in platelets, is administered or injected in the skin. Platelet have clotting and repairing abilities due to high concentration of growth factors. It can stimulate collagen and elastin production and prevent their degradation, hence reversing the signs of photoaging or sun-damaged skin. This results to smoother wrinkles and  fine lines, lighter pigmentations and  tighter skin around  the eyes, cheeks, mid-face, jawline, neck, back of the hands and decolletage.   It also improves overall skin texture and tone. ·      Monopolar Radiofrequency (RF) A non- invasive procedure that involves heating of the skin and underlying structures which results to immediate collagen contraction creating thicker and shorter collagen fibers resulting to tighter skin. Mild thermal injury gives rise to a wound healing response that produces dermal remodeling of phtodamaged skin overtime and rejuvenating the skin. In monopolar RF, the current passes through a single electrode in the handpiece through a grounding pad. There’s high density of power close to the electrode’s surface for deep heat penetration that reaches deeper layers of the skin. George J. Hruza. Lasers and light: Procedures in Cosmetic Dermatology Series (2017) ·      Syneron ReFirme ST (Bipolar radiofrequency with light energy) It is an FDA-approved a non- surgical skin tightening device for all skin types and colors that combines bi-polar radioffrequency and infrared (light) energies to heat the dermis stimulating collagen production. In a bipolar system the electrical current passes between two electrodes at a fixed distance. The depth of the penetration is limited to ½ the distance between the electrodes. It reaches shallow layers of the skin hence its effective in reducing fine lines and wrinkles, lifting sagged skin, and making skin smoother and more toned. George J. Hruza. Lasers and light: Procedures in Cosmetic Dermatology Series (2017)