Photorejuvenation is a skin treatment that uses,, or to treat and remove effects of such as, spots, and textures. The process induces controlled wounds on the skin, prompting it to heal itself by creating new cells. This process reverses the signs of photoaging to a certain extent by removing appearances of damage. The technique was invented by Thomas L Roberts, III using lasers in the 1990s.
Skin rejuvenation can be achieved through various modalities including: thermal, chemical, mechanical, injection, and light.
- Thermal rejuvenation using a radio-frequency device to induce a thermal effect in the skin.
- Chemical rejuvenation with.
- Photo rejuvenation with light pulses from or lamps.
- Mechanical rejuvenation by or microneedling damage the outer layers to promote skin regrowth.
- Injections for rejuvenation with botox, fillers, collagen.
Laser resurfacingA physician performing laser resurfacing using an erbium laser
Laser resurfacing is a technique that disassociates. It is used for the treatment of wrinkles,,, ( and surgical scars),,, and. It can be combined with to help tighten and smooth over the new contours after removal of excess fat. Resurfacing can be ablative, which vaporizes tissue and creates wounds, or non-ablative which keeps the skin intact. When compared to a chemical peel, or other forms of treatment, a laser allows the surgeon to customize the surgery not only for each patient but also to each area of the face.
Laser resurfacing is usually done with a 2940 nm or a 10,600 nm laser. Complete resurfacing was first done with a CO2 laser. Both Erbium and CO2 are used to treat deep, and. Through the heating of the deep, are stimulated to form new and helping to bring increased turgor and thickness to the skin. A variety of modes have been developed including Nd:Yag lasers and a plasma device. CO2 resurfacing has been shown to have an increased risk of and scarring than erbium lasers. This is due to the high degree of coagulation and thus heat production that occurs as a nature of the CO2 wavelength.
Fractional Laser (FP) is a form of laser based skin resurfacing commonly used now, with several devices on the market. A fractional laser delivers tiny pinpoints of laser light to a part of the skin. Hundreds or thousands of laser pinpoints may be used per square inch, leaving healthy skin between the areas, to allow more rapid healing and lower risks. FP may provide similar results to CO2 laser resurfacing without risk of scarring or significant downtime. Complications observed photo light treatment for skin cancer in a study of 961 treatments included and outbreaks and were temporary. There have been, however, anecdotal negative accounts of bad scarring and without any findings of. Erbium and CO2 fractional systems have a better safety profile than lasers of the past.
Laser TypesLaser Wavelength Uses CO2 10,600 nm, photodamage Er:Yag 2940 nm scars, photoaging Er:Glass 1540 nm rejuvenation, scaring Nd:Yag 1064 /1320 nm photodamage Diode 1450 nm facial rejuvenation
Intense pulsed light
(IPL) uses flashlamps (and not lasers) to produce high intensity light over broad visible and infrared wavelengths with filters that select the desired range. IPL is used to treat dyschromia, rosacea, melasma, acne, photodamage, vascular and pigmented lesions, and rhytides.
Beginning in the late 1990s, a number of studies have been performed to evaluate the safety and effectiveness of IPL on wrinkle-removal and rejuvenation of the skin. One such study conducted by a group of four researchers from the in 2004 found IPL to be a "non-invasive, non-ablative method for rejuvenating photoaged skin with minimal adverse events".
Studies have noted that exposing cells to direct heat can cause DNA damage not only in those cells but also in surrounding tissue that was not directly exposed, and concluded treatments can cause microscopic thermal injuries and that further research is warranted.
IPL has become a popular treatment and is effective for pigmentation and telangiectasias, but has lesser results for wrinkles. The procedure is quick, safe and well tolerated.
(PDT) uses photosensitive compounds that are activated selectively by light. PDT is used to treat, acne, photoaging and skin cancer.
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- Roberts, Thomas L III. The emerging role of the CO2 laser in aesthetic plastic surgery. Presented at the XIII Congress of the International Society for Aesthetic Plastic Surgery, New York, NY, Sept. 28-Oct. 1, 1995.
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- GRABER, EMMY M.; TANZI, ELIZABETH L.; ALSTER, TINA S. (March 2008). "Side Effects and Complications of Fractional Laser Photothermolysis: Experience with 961 Treatments". Dermatologic Surgery. 34 (3): 301–307. :. .
- Christine. "Adverse Effects Fraxel Repair". realself.com. RealSelf, Inc. Retrieved 17 February 2014.
- Ortiz, A. E.; Goldman, M. P.; Fitzpatrick, R. E. (Dec 2014). "Ablative CO2 Lasers for Skin Tightening: Traditional Versus Fractional". Dermatol Surg. 40 Suppl 12: S147–51. :. .
- Babilas, P; Schreml, S; Szeimies, R. M.; Landthaler, M (Feb 2010). "Intense pulsed light (IPL): a review". Lasers Surg Med. 42 (2): 93–104. :. .
- Sadick NS, Weiss R, Kilmer S, Bitter P, NS; Weiss, R; Kilmer, S; Bitter, P (January 2004).. Journal of Drugs in Dermatology. 3 (1): 41–49. . CS1 maint: Multiple names: authors list ()
- Purschke, M; Laubach, HJ; Anderson, RR; Manstein, D (2010).. The Journal of Investigative Dermatology. 130 (1): 86–92. :. .
- Kohl, E. A.; Babilas, P; Landthaler, M (2010). "Skin rejuvenation with intense pulsed light". Acta Dermatovenerol Croat. 18 (3): 181–4. .
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