Background: Cellulite represents a common cosmetic problem that affects nearly all women. This study aimed to evaluate microwave therapy’s effectiveness for cellulite treatment. Methods: In this study, 26 women showing severe or moderate cellulite underwent four sessions of microwave therapy on the buttocks and posterior thighs. The following assessments were performed at baseline and the three-month follow-up after the last treatment: the Cellulite Severity Scale (CSS), Nürnberger–Müller classification scale, photographic evaluation, and buttocks/posterior thighs circumference measurements. A Likert scale questionnaire was used to assess patient satisfaction at the 3-month follow-up. Results: The treatment positively affected the cellulite severity as confirmed by the Cellulite Severity Scale (CSS) and Nürnberger–Müller classification scale results. CSS showed a significant amelioration in cellulite severity between the initial assessment and the 3-month follow-up for the buttocks and posterior thighs, with total average scores that ranged from 10.7 ± 3.1 to 4.5 ± 1.8 (p < 0.01). The treatment also resulted in a remarkable improvement in comfort/satisfaction and a buttocks and posterior thighs circumference reduction. No serious adverse events were observed. Conclusions: Microwave therapy has proven to be a safe treatment for improving cellulite appearance and reducing body circumferences.

Background: Fractional ablative and non-ablative lasers are useful treatments for skin rejuvenation. A procedure that provides the sequential application of fractional ablative followed by non-ablative laser treatment may reduce patients’ downtime and deliver better cosmetic results than with either laser alone. Objective: The purpose of the current study was to demonstrate the ameliorative and therapeutic effects in skin remodeling of the synergistic use of the two laser wavelengths (fractional ablative CO₂ and non-ablative 1540 nm) with three different types of pulse shapes, S-Pulse (SP), D-Pulse (DP) and H-Pulse (HP), through which the CO₂ laser can emit, performing an ex vivo histological evaluation. Methods: In this prospective study, ex vivo sheep inner thigh skin was chosen due to its similarity to human skin tissue, and a histological evaluation was performed. Three irradiation conditions, using all of the three CO₂ pulse shapes (alone or averaged), were investigated: (1) 10.600 nm alone, the sequential irradiation of the two wavelengths in the same perfectly controlled energy pulses (DOT) for the entire scan area; ((2) 10.600 nm followed immediately by 1540 nm; and (3) 1540 nm followed immediately by 10.600 nm). Results: When comparing ablative to sequential irradiations, the synergy of the two wavelengths did not alter the typical ablative pulse shape of the 10.600 nm laser alone. With the same CO₂ pulse shape, the lesion depth did not vary with the synergy of the two wavelengths, while thermal lesion width increased compared to CO₂ alone. The ablation rate was achieved, while the total thermal lesion coverage in the scanning area of CO₂ − 1540 lasers was greater than when using CO₂ alone and then the other sequential irradiation. Conclusions: This study provides important preclinical data for new and early uses of the novel 10.600/1540 nm dual-wavelength non-ablative fractional laser. The synergy of the two wavelengths enhanced all the benefits already available when using CO₂ laser systems both in terms of tone strengthening, thanks to a greater shrinking effect, and in terms of stimulation and collagen remodeling thanks to a greater volumetric thermal effect.

Ablative fractional CO₂ laser is an established tool for dermatologic and aesthetic indications. Non-ablative wavelengths, such as 1540 and 1570 nm, are increasingly being combined with CO₂ laser to optimise the results while reducing the recovery time. A narrative review of the literature was conducted, including ex vivo, in vivo, and in vitro studies, as well as human clinical trials that evaluated the efficacy, safety, and histological impact of dual-laser systems. Preclinical studies have shown that sequential application of fractional CO₂ followed by 1540/1570 nm expands the thermal coagulation zone without increasing the ablation depth. At the histological level, the dual protocol promotes collagen remodelling with greater thermal precision. On a clinical level, a combined treatment has shown efficacy in improving scars, striae distensae, skin laxity, and wrinkles, with reduced recovery times compared to CO₂ monotherapy. Preliminary data also suggest potential benefits in inflammatory conditions such as hidradenitis suppurativa. The sequential CO₂ + 1540/1570 nm combination represents an effective and well-tolerated approach in regenerative dermatology. Current evidence supports its use as a versatile, safe, and reproducible technique for skin rejuvenation and scar modulation; however, further comparative studies are needed to standardise protocols.

(1) Introduction: In cosmetic dermatology, benign hyperpigmentation is a prevalent issue. Solar lentigo and other melanoses are bringing patients to the attention of physicians more and more often. The Q-switched 1064/532-nanometer (nm) laser is the gold standard device to treat these conditions. A new generation of these machines, able to shorten pulse duration to hundreds of picoseconds, has emerged showing better preliminary results. In order to treat hypermelanoses in Asians, we used a Q-switched laser with a picosecond pulse. (2) Methods: A retrospective recruitment of 31 Asian individuals requesting treatment for melanosis was conducted at Catanzaro’s Magna Graecia University, University of Rome Tor Vergata and Villa Bella Antiaging. Although they might have varied, the treatment settings were typically as follows: for dermic lesions, a pulse wavelength of 1064 nm with a duration of 450 picoseconds (ps) was used, and for epidermal lesions, a pulse wavelength of 532 nm with a duration of 370 ps was used. Up to four laser treatments were carried out, each at least 30 days apart. During a three-month follow-up after the final session, patient satisfaction was evaluated using a visual analogue scale (VAS). Images taken prior to laser treatments and thereafter were compared, and the aesthetic effect was scored on a five-point scale by two blinded specialists. (3) Results: Of the 31 patients recruited, 25 (80.6%) were female and 6 were male (19.4%). The average stated age was 48.96 ± 13.68. During the dermatological examination, all patients were found to have nearly completely removed melanosis, with a mean VAS score of 7.03 ± 1.35 and a five-point evaluation scale of 2.71 ± 0.78. Conclusions: The Q-switched 1064/532 nm laser can be seen as a safe and effective option to treat benign hypermelanosis in Asian patients. Compared to other technologies, the use of a picosecond pulse appears to promise superior outcomes. To validate the results of this investigation, however, a clinical trial comparing the many commercially accessible therapy options is required.

Cosmetic dermatology increasingly utilizes laser technologies to address various aesthetic concerns. This study evaluates the efficacy of the flash-lamp pulsed-dye laser (FPDL) in treating vascular and scar-related conditions. A cohort of 71 patients with diverse vascular lesions, including facial telangiectasia, port-wine stains (PWSs), striae rubrae, erythematous acne scars, facial traumatic scars, and keloids, was treated using the FPDL (Synchro Vas-Q, Deka MELA). Treatment protocols varied based on lesion type, with sessions ranging from one to eight at intervals of four to eight weeks. Clinical outcomes were assessed using a four-point grading scale and patient satisfaction surveys. Results indicated that 70.4% of patients achieved excellent clearance of lesions, while 16.9% and 9.9% showed moderate-good and slight clearance, respectively. Minimal or no improvement was observed in 2.8% of cases. High patient satisfaction was reported, correlating with effective lesion reduction and manageable side effects, primarily post-operative purpura. The study underscores FPDL’s selective efficacy for hemoglobin-rich lesions and its safety profile, advocating for its continued use in cosmetic dermatological practices. These findings contribute to the growing evidence supporting laser therapy as a pivotal tool in aesthetic medicine, emphasizing the importance of tailored treatment protocols and patient education for optimal outcomes.

(1) Benign melanoses are a frequent issue in aesthetic dermatology. Solar lentigo, ephelides, café au lait spots, and other melanoses represent a cosmetic issue for a growing number of subjects. The Q-switched 1064/532-nanometer (nm) laser may be considered the gold standard for management of these aesthetic issues. A new generation of Q-switched lasers, capable of concentrating the energy pulse in the spectrum of hundreds of picoseconds, is emerging, promising better results than previous ones. In this paper, we report the use of a Q-switched laser with a picosecond pulse to manage hypermelanoses. (2) Methods: 36 patients seeking melanosis removal were retrospectively enrolled at Magna Graecia University of Catanzaro. Treatment parameters, although variable, were the following: 1064 nm with a pulse duration of 450 picoseconds (ps) for dermic lesions and 532 nm with 370 ps for epidermal lesions. Up to four treatments, with a minimum interval between laser treatments of 30 days, were performed. After the last session, patients’ satisfaction was assessed at a three-month follow up with a Visual Analogue Scale (VAS). Two blinded dermatologists measured the aesthetic outcome using a five-point scale comparing pictures before laser sessions and during follow-up. (3) Results: 36 patients were enrolled; 23 were females (63.9%) and 13 males (36.1%). The mean reported age was 49.2 ± 18.9 years. All participants were assessed with a complete/almost complete melanosis removal at the dermatological evaluation, with a mean VAS score of 9.39 ± 0.90. (4) Conclusions: The Q-switched 1064/532 nm laser may be considered the main weapon in treating benign hypermelanosis. The picosecond pulse seems to guarantee better results than other devices. However, a clinical trial comparing Q-switched nanosecond pulse with picosecond pulse is necessary to confirm this study’s findings.