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This study found that chemical and photochemical oxidative processes modify the main classes of proteins in hair, confirmed through microspectrophotometric, fluorescence microscopy, and electrophoretic methods.

In this study, researchers developed cationic liposomes encapsulated with keratin to improve the recovery of UV-damaged hair, finding that these liposomes significantly improved keratin penetration and reduced protein denaturation and lipid peroxidation, resulting in smoother hair surfaces compared to keratin solution alone.

This study found that hair damage from sunlight and chemical processes like perms and bleaching varies in internal microstructure changes, suggesting that protective techniques should be tailored to the type of chemical treatment used.

This review discusses the current understanding of hair photodamage and photodegradation and reports no new findings; it highlights unresolved questions about radiation effects and melanin's role in different hair types.

This commentary highlights the importance of additional sun protection for individuals with alopecia, noting that common headwear like baseball caps may provide insufficient photoprotection for the scalp.

In this laboratory study, researchers reported that Camellia sinensis seed flavonoids significantly reduced oxidative stress and inflammation in UV-irradiated skin cells by modulating key signaling pathways, highlighting its potential as a skincare ingredient for anti-inflammatory and anti-photoaging benefits.

The study concluded that a new method can effectively assess scalp sun damage in balding men, which increases with age and sun exposure.

Topical retinoids effectively improve photodamaged skin.

This study found that chronic ultraviolet-B exposure increased skin vascularization and wrinkle formation in mice, while overexpressing the angiogenesis inhibitor thrombospondin-1 reduced these effects, suggesting angiogenesis inhibition as a potential approach to prevent photo-damage.

In this study, researchers used a human skin organoid model to show that solar UV exposure damages hair follicles and skin, while exosomes from mesenchymal stem cells reduced inflammation and supported hair follicle regeneration.

This study found that subcutaneous adipose tissue-derived extracellular vesicles (AT-EVs) protect skin from photodamage by enhancing fibroblast proliferation and reducing oxidative stress compared to those from adipose-derived stem cells.

Some treatments can improve skin's defense against damage, but overuse may cause other skin problems.

This study found that UVA and UVB exposure increased hydroquinone and sunscreen absorption in nude mouse skin, with less absorption enhancement observed in more lipophilic sunscreens.

In this in vitro study, pretreatment with Dead Sea water and saline magnetized water reduced UVB-induced DNA damage and inflammation markers in human keratinocyte cells, primarily through autophagy activation, suggesting potential use in topical products to prevent skin damage from UV exposure.

This study validated a facial aging scale that predicts patients' age with good reliability and validity, potentially serving as a useful tool for assessing facial rejuvenation treatments and clinical research.

This study found that a novel proniosomal gel formulation of CoQ10 improved antioxidant levels and provided better skin protection against UV radiation compared to a conventional CoQ10 gel in animal models.

This study found that conditioned media from human amniotic fluid-derived stem cells may enhance skin regeneration by promoting cell proliferation and migration, and by modulating gene expressions altered by UV irradiation.

This review discusses sex-specific cosmetic treatment recommendations using lasers and energy-based devices for male patients and reports no new clinical findings, highlighting the need for tailored approaches for common male concerns.

This study presented a case series of erosive pustular dermatosis on the scalps of elderly patients, noting unusual presentation with hypergranulation tissue and unique dermoscopic vascular patterns, diverging from typical manifestations.

This study observed that long-term UV-A exposure and semi-permanent dye treatment can cause significant structural damage to human hair, particularly affecting the cuticle and cortex layers.

This report details a case of a 58-year-old male diagnosed with erosive pustular dermatosis of the scalp, which improved following 3-5 weeks of treatment with topical clobetasol proprionate.

As skin ages, it gets thinner, paler, and more wrinkled, and protection and care like sunblock and moisturizers are important.

This study found that UVB radiation primarily causes hair protein loss, while UVA radiation mainly contributes to hair color changes, with no significant differences in mechanical properties observed between photooxidized and non-irradiated hair.

Alpha-hydroxy acids, like glycolic acid, safely improve skin issues and work on all skin types.

This review discusses the role of antioxidants in managing oxidative skin damage and reports no new results, emphasizing the need for understanding their mechanisms, limitations, and risks for safe use.

This review discusses various dermatologic treatments for periorbital skin rejuvenation but reports no new clinical results; it highlights the importance of patient selection and aging severity in choosing appropriate therapies.

This study found that higher melanin concentration in black hair offers photoprotection against sunlight-induced protein damage in the cortex, whereas the cuticle experiences similar photodamage regardless of hair pigmentation.

This review discusses the potential benefits of flavonoid-containing botanicals, such as Panax ginseng, in reducing hair loss and promoting hair growth, but reports no new experimental results.

This review discusses the application of active transdermal technologies in cosmetic devices for skin restoration and enhancement, reporting no new clinical results.

This review summarizes the positive clinical response of using platelet-rich plasma as an adjuvant in skin rejuvenation treatments, with no identifiable complications, suggesting a promising outlook for its future use.