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This review suggests that 308 nm excimer therapy may offer a well-tolerated non-pharmacologic option for alopecia areata, with more limited evidence for its effectiveness in lichen planopilaris and frontal fibrosing alopecia.

The 308-nm excimer laser helps hair regrowth in some alopecia areata cases but not all.

In this study, 15d-PGJ2 administered in a topical cream inhibited oxidative and inflammatory skin changes caused by UVB radiation in hairless mice, suggesting it as a promising treatment approach.

In this study, orally administered Centella asiatica extract, standardized for asiaticoside content, significantly improved skin barrier function, elasticity, and reduced signs of UVB-induced photoaging in hairless mice, highlighting its potential as a nutricosmetic for skin health.

In this study, treatment with cell-derived nanovesicles from hair follicle mesenchymal stem cells improved photoaging signs in UVB-exposed mice and human dermal fibroblasts by reducing oxidative stress, enhancing cell proliferation, and promoting extracellular matrix production.

This study analyzed watercress oil and confirmed its phytochemical profile, UV absorption properties, and potential efficacy for hair growth, supporting traditional hot oil applications.

This review discusses the challenges and contradictions in understanding nanoparticle penetration and toxicity in human skin, emphasizing the need for standardized testing and further research on particles smaller than 10 nm.

This study found that S-Methylmethionine sulfonium (SMMS) enhances cell survival and reduces damage from UVB irradiation in skin cells, suggesting its potential as a cosmetic ingredient for UV protection.

This systematic review found that light and laser therapies, including excimer and erbium-glass lasers, generally increase hair density and diameter in various types of alopecia, with particularly notable effects in androgenic alopecia but limited efficacy in telogen effluvium.

Regenerative medicine is effective and safe for treating vitiligo.

This review highlights that a comprehensive approach combining pharmacological, immunomodulatory, and regenerative interventions, including phototherapy enhanced with topical treatments and JAK inhibitors, appears effective and promising in the management of vitiligo by addressing its autoimmune and melanocyte-loss aspects.

Combination therapies might work better for some vitiligo patients, but results vary.

This article discusses a new global consensus on the classification of vitiligo, describing histopathological findings and outlining treatment strategies, but reports no new clinical results.

In this study on a mouse model of vitiligo, NB-UVB/ADSC combination therapy improved oxidative stress and calcium homeostasis, but the protective effect was reversed by inhibiting Nr2 signaling.

This review synthesizes research on solar radiation's multifaceted effects on skin and recent advancements in sunscreen technology, including formulation, testing methods, and the use of AI, to inform future sun protection product development.

Adequate vitamin D is crucial for skin health and should be considered in dermatology.

This review explores the detrimental effects of sunlight on the skin’s circadian rhythm and photodamage, noting the potential of natural cosmeceuticals to influence this rhythm, but reports no new results.

This study found that adipose-derived stem cell extracellular vesicles reduced wrinkles and promoted cell proliferation in UVB-induced photoaging in mice by decreasing oxidative stress and inflammation.

The study found that in mice, conditional knockout of p53 in epidermal keratinocytes reduced food intake following UVB exposure and resulted in anxiety-related behaviors, suggesting that p53 plays a role in appetite stimulation and anxiety via UVB-induced β-endorphin production.

This study found that the immune-competent B6. Cg‐Tyr c−2J Hr hr /J congenic mouse line had a more pronounced delayed sunburn response and different proliferative skin reactions to UV exposure compared to SKH 1 mice.

This review discusses the role of the unliganded vitamin D receptor in hair follicle cycling and tumor formation in mice and reports no new experimental findings.

In this mouse study, UVA and UVB exposure led to hair follicle miniaturization, graying, and prolonged hair cycle duration, associated with changes in stem cells and increased Wnt signaling activity.

This review discusses recent advances in understanding Merkel cell carcinoma biology, including the development of genetically-engineered mouse models and potential therapeutic targets, but reports no new clinical results.

This article discusses the foundational concepts of nanotechnology and its contributions to dermatology and medicine, but does not present new research findings.

This article reviews the basics of hair follicle biology, laser/tissue interactions, and hirsutism and hypertrichosis causes, discussing the long-pulsed alexandrite laser's role in hair reduction without reporting new clinical results.

This review discusses plant extracts for dermatological use, highlighting evidence that some can reduce edema in chronic venous insufficiency or help treat actinic keratoses, but it reports no new clinical results.

This review discusses the applications and advantages of LED-based photobiomodulation therapy for dermatological and cosmetic purposes but highlights existing challenges and health concerns while exploring future perspectives.

The document explains various skin conditions and their treatments.

This review discusses the interplay between signaling/transcription factor-mediated and epigenetic mechanisms in skin development and regeneration, highlighting the need for further exploration of epigenome reorganization in these processes.

The document concludes that managing skin conditions during pregnancy is important and requires specialized care.