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In this study, Nd:YAG picosecond lasers using fractional micro-lens array were found to have a comparable effect to ablative fractional Er:YAG lasers in treating atrophic acne scars, with better safety profiles but slightly less patient satisfaction.

In this study, 755-nm alexandrite laser treatment significantly reduced acne keloidalis nuchae lesions in male patients, improving quality of life and showing low recurrence rates, with temporary hair loss as a reversible complication.

In this observational study, the effectiveness of a diode laser was evaluated for treating pseudofolliculitis barbae at the Laser and Skin Surgery Center of New York, but it reports no new clinical results.

This study introduced a new laser-only method called EKA for acne treatment, which is reported to be safe, painless, and heat-free, showing promising results for both acne and scar repair in initial sessions without combining with LED light.

This article reviews the use of the Nd:YAG laser for hair removal and reports no new research findings.

In this study, a 532 nm laser at 15 J/cm² increased the proliferation and tenogenic differentiation of tendon-derived stem cells in rats, mediated by Nr4a1 up-regulation.

Laser hair removal is generally effective, with results varying by laser type and patient.

This chapter explores the promising use of low-power laser irradiation for post-hysterectomy reconstructive care, emphasizing enhancements like a flexible fiber optic module, to potentially improve genitourinary rehabilitation in cervical cancer patients.

This study found that the LightSheer Diode EP Laser System significantly reduced hair growth among women with hirsutism, with side effects disappearing within three days and no long-term skin pigmentation issues observed.

Fractional infrared technology is effective and safe for treating cervical laxity.

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 advancements in laser hair removal technologies and the potential role of radiofrequency for certain hair types, but it reports no new clinical results.

This study found that a high-power triple-wavelength diode laser effectively and safely treated facial hirsutism and follicular disorders in individuals with darker skin tones, showing significant hair reduction without adverse events.

This article discusses the scientific and safety aspects of optical hair removal devices but reports no new clinical results; it notes encouraging initial reports of long-term efficacy.

This review reports that current in-office laser hair removal devices, particularly the Nd:YAG system for pigmented skin, effectively provide long-term hair removal, though more research on home-use devices is needed.

This study found that using a ruby laser for hair removal resulted in a significant average reduction of 56.4% in hair density among participants dissatisfied with other methods.

This article discusses the use of laser technology in hair transplantation and highlights its potential benefits and drawbacks, emphasizing its role in achieving natural results in cosmetic hair restoration.

In this study using guinea pigs, the low-dose 800 nm semiconductor laser was found to effectively treat skin blackheads and coarse pores by promoting hair follicle cell apoptosis, while maintaining PCNA expression levels in sebaceous glands.

In this study, treatment of unwanted hair with 755 nm alexandrite laser in 14 patients showed a decrease in excess hair at the armpit and thigh areas, with a 75% accuracy rate in hair density estimation using Monte Carlo modeling.

This case study reports that treating a female patient with facial partial unilateral lentiginosis using a 532-nm Nd:YAG fractional picosecond laser resulted in significant improvement in pigmentation without notable side effects, indicating it may be an effective and well-tolerated treatment option.

Laser treatment for skin conditions VEN and ILVEN is effective and liked by patients.

This article discusses the use of lasers and light sources for hair removal and reports no new clinical results; it emphasizes the significance of selecting the appropriate laser system and treatment protocol for effective and safe outcomes.

This study found that a 532 nm laser at 15 J/cm² enhanced the proliferation and differentiation of tendon-derived stem cells in rats, potentially accelerating tendon healing through the up-regulation of Nr4a1.

In this study, the researchers demonstrated an automatic alignment method for beams in an electron pumped excimer laser system that achieved high precision and accuracy, with a reported alignment accuracy of 0.63μrad.

This article reviews the use of laser and light technologies in hair treatments, highlighting their potential and challenges, but provides no new clinical findings.

Hair shine can be measured by how it reflects laser light.

In this review, researchers examined the current status and advancements in using long-pulse alexandrite lasers for treating hair removal, vascular lesions, and pigmented lesions, aiming to guide clinical use based on how the laser's 755nm wavelength is absorbed by melanin and hemoglobin.

This study found that the long-pulsed alexandrite laser effectively reduced hair growth with varying efficacy depending on the pulse duration, anatomic location, and number of treatments, without causing permanent adverse effects in skin types I–III.

In this study, photodynamic therapy was found to achieve permanent reduction of nonpigmented hair in mice, unlike an 800-nm diode laser, by targeting the hair matrix through repeated sessions.