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In this study, using a 1064 nm picosecond Nd:YAG laser effectively removed undesirable scalp micropigmentation in four patients within 1–3 treatment sessions, with no unexpected adverse events reported.

This article reviews the growing trend of at-home laser and light devices for treating conditions like acne, hair removal, and psoriasis, emphasizing their popularity and the need for cautious use but reports no new clinical results.

595 nm pulsed dye laser is a cost-effective treatment for nonmelanoma skin cancer with a low recurrence rate.

This study found that photodynamic therapy may offer a new option for removing nonpigmented hair, although it was less effective than diode laser for black hair in mice.

This article introduces a needleless microjet injector using laser pulse energy for tattoo pigments in scalp micropigmentation, highlighting an almost painless procedure without anesthesia.

This study observed that 675-nm diode laser therapy may serve as a safe and possibly effective adjuvant treatment for telogen effluvium, showing improvements in hair pull test results, pruritus, and trichodynia among patients. However, controlled studies are needed to confirm its efficacy.

This study found that using a nonablative 1927 nm wavelength laser followed by hydroquinone cream is safe and effective for treating postinflammatory hyperpigmentation in patients with dark skin types.

In this experimental study, laser irradiation significantly altered the gene expression of cytokines in cultured human T-cell lymphocytes, suggesting that such laser light may photobiomodulate cytokine production in vitro.

This article reviews the use of laser and light-based devices for hair removal, highlighting their effectiveness in significantly reducing hair growth in individuals with fair skin and dark hair, and suggests that photoepilation offers advantages over traditional hair removal methods.

This study found that low-level laser therapy with an 830-nm wavelength most significantly stimulated hair growth in rats, compared to other wavelengths tested.

In this study, 675 nm laser treatment significantly improved hair density and reduced miniaturization in both male and female patients with alopecia androgenetica, showing promising results without side effects after 10 sessions.

This study found that intense pulse light and diode laser treatments were similarly effective and tolerable for reducing unwanted facial hair in female patients with hirsutism, with no significant differences in hair reduction, adverse effects, or patient satisfaction between the two methods.

This study found that the dual-wavelength non-ablative fractional laser provides enhanced skin rejuvenation by increasing thermal lesion coverage and collagen remodeling compared to using the CO2 laser alone in an ex vivo setting.

Lasers in hair transplantation show promise but are not yet standard, with current methods causing some side effects and needles still being preferred for creating recipient sites.

This special issue reviews various advances in laser and light-based technologies for dermatological treatments, emphasizing improvements for diverse skin types, but reports no new empirical results.

This study found that using a commercially available IPL home-use device led to significant hair reduction and demonstrated long-term efficacy in maintaining hair reduction one year after treatment.

This review discusses the use of laser and flashlamp technology for unwanted hair removal and reports no new clinical results, highlighting challenges with light-colored hair and treatment safety for darker skin tones.

This study concluded that both low and incremental radiant exposures of diode lasers produced similar hair reduction and patient satisfaction, but low radiant exposure was less painful and better tolerated.

This study found that low-level laser therapy accelerates skin regeneration in gamma-irradiated mice and enhances the biostimulatory effect on hair follicles.

This study found that long pulsed Nd: YAG laser is a safe and effective method for hair reduction in individuals with skin types IV and V, with significant improvements observed over six sessions.

This textbook chapter reviews the use and efficacy of various laser and light systems for hair removal in Asian skin, but it reports no new clinical findings.

This article compares traditional nonlaser hair removal methods with newly developed laser-assisted techniques, discussing their applications but not presenting new research findings.

This study evaluated a novel hand-held low-level light therapy device for treating mild-to-moderate acne, finding it significantly reduced inflammatory lesions and moderate acne severity without severe adverse reactions, while also reducing Cutibacterium acnes viability in vitro.

This study found that repetitive 532 nm laser therapy significantly decreased scores for macules, pigmented, and vascular lesions on the facial area, regardless of skin phototype or age.

This article shares the authors' experiences with the erbium YAG laser in hair restoration surgery, noting improved graft yield and reduced thermal damage compared to traditional methods.

The Nd:YAG laser is a successful and safe way to treat ingrown and pincer nails.

Low level laser therapy may help with hair loss.

In this study, helium-neon laser irradiation at approximately 1 J/cm² significantly increased the percentage of hair follicles in the anagen phase in both testosterone-treated and untreated mice, suggesting stimulation of hair growth.

This study reported that a new laser scanner using 655 nm red and 808 nm infrared lasers significantly improved hair density in patients with androgenic alopecia compared to both a laser hat and no treatment, without observable adverse effects.