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This narrative review discusses the evolution and diverse medical applications of laser technologies, particularly in dermatology and skin biology, without reporting new research findings.

This review discusses the use of ablative and nonablative fractional resurfacing for enhanced topical drug delivery in dermatology and reports no new clinical results; further studies are needed to explore these methods.

This study observed that cutaneous microwounds created by fractional photothermolysis heal differently from typical wounds, displaying rapid re-epithelialization and limited inflammation, which may help reduce scar formation by delaying collagen remodeling and minimizing myofibroblast activation.

This review discusses five popular resurfacing technologies for facial rejuvenation, highlighting their role in achieving smoother, healthier, and younger-looking skin, and reports no new clinical results.

This source highlights that fractional CO2 laser, as a minimally invasive technology, shows significant benefits in treating various skin and mucosal conditions by improving therapeutic outcomes, shortening recovery times, and enhancing precise personalized interventions through emerging technologies like AI and biomarker monitoring.

This study identified a novel mechanism by which dsRNA-induced TLR3 activation and retinoic acid pathways contribute to new hair follicle formation after deep wounds in mice and suggested a similar potential in humans.

This article contains no new research findings or results.

In this review, the authors report that fractional resurfacing can be a safe and effective technique for treating scars and promoting photorejuvenation in Asian skin, though it requires cautious use to minimize risks like post-inflammatory hyperpigmentation and rebound melasma.

This review details the advancements and benefits of fractional erbium:YAG resurfacing lasers for treating photoaging, acne scarring, and dyschromia, but it presents no new clinical results.

This literature review reported that fractional lasers, like the 1550-nm nonablative erbium-glass laser, may enhance hair regrowth by stimulating a wound healing process, but more randomized controlled trials are needed to confirm their effectiveness and optimize treatment parameters.

In this study, the researchers found that the effectiveness of a 1,550-nm fractional laser in promoting hair growth in mice depends on the specific combination of beam energy and density, with inappropriate settings potentially causing ulcers or hair follicle injury.

In this study involving 13 patients with vitiligo-associated leukotrichia, minimal hair repigmentation was observed following treatment with fractional CO₂ laser and topical betamethasone, though the method was well tolerated, highlighting the need for further research to optimize treatment parameters.

This study concluded that ablative fractional lasers may induce hair regrowth in mice by activating the Wnt/β-catenin pathway.

This study found that PRP was effective for treating alopecia areata with similar improvement across groups, while topical delivery via fractional CO2 laser or microneedling reduced injection pain.

This study found that 1,540 nm fractional erbium-glass laser treatment combined with topical minoxidil significantly increased hair regrowth in alopecia areata patches compared to minoxidil alone, with response rates of 60% versus 16%, though the long-term effects remain unknown.

In this study, researchers evaluated the efficacy of a collagen booster used alongside CO2 fractional laser treatment for skin aging, finding that the combination treatment affected the vascularization and healing process of the skin on a healthy adult's forearm.

This book reviews the various types of acne and acneiform conditions, as well as their treatment options, with expert insights from multiple fields.

This article discusses a wide range of procedures in facial plastic surgery and highlights the recent advancements and trends without reporting new clinical findings.

This study found that combining fractional erbium-glass laser therapy with topical minoxidil significantly improved hair density and diameter in men with androgenetic alopecia compared to using minoxidil alone over a 24-week period, with no serious adverse events reported.

This study observed that combining nonablative fractional laser treatment with topical minoxidil led to hair regrowth in Chinese alopecia areata patients, noting complete regrowth in some patients and no relapse in the majority at a one-year follow-up, without reported side effects.

This overview highlights an increase in nonsurgical cosmetic procedures and a growing number of male patients seeking cosmetic treatments, without reporting new clinical results.

This study found that combining fractional CO₂ laser with halometasone cream improved chronic eczema more effectively than halometasone alone, with efficacy varying by laser parameters and showing better results at 4 weeks compared to 1 week. Pain was noted with higher energy treatments.

In this review, the authors discussed how men seek cosmetic procedures for distinct reasons compared to women, emphasizing the need for dermatologists to consider male-specific desires for discrete treatments with minimal downtime and differences in psychological motivations.

This review suggests that dermatological cosmetic procedures can be safely performed on dark-complexioned skin with appropriate treatment adjustments, highlighting the need for careful consideration to prevent adverse effects.

Laser technologies improve medical treatments and outcomes.

Tailored nonsurgical cosmetic procedures are crucial for safely treating diverse skin types, especially skin of color.

Minoxidil is the only FDA-approved topical drug for treating male or female pattern hair loss, and other medications like finasteride and dutasteride can also increase hair growth.

This study suggests that metformin's ability to enhance insulin sensitivity may improve acanthosis nigricans by addressing the underlying insulin resistance.

This review highlights the various cosmetic and therapeutic applications of laser technologies in dermatology, discussing the mechanisms, safety, efficacy, and recent advancements to provide a comprehensive overview of their uses and potential future implications.

This article discusses various forms of hair loss and their psychological impacts, noting the lack of definitive treatments, but reports no new clinical findings.