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This paper reviews the evolution of skin appendages and keratin-associated proteins among amniotes, proposing a model for their genetic divergence without new experimental results.

Dermoscopy is a good, noninvasive way to see normal cat skin structures and could be useful for check-ups.

This study found that fluorescence excitation spectroscopy could be a promising noninvasive tool for assessing the effects of comedolytic agents like retinoids on acne-like lesions in rhino mice.

This study found that adding 10 mg/day of biotin to isotretinoin treatment for acne improved hair growth and maintained skin hydration, potentially reducing isotretinoin's mucocutaneous side effects.

In this study on rats, CBF injections demonstrated significant wound healing effects and improved recovery after skin cryoablation, similar to the effects observed with Actovegin.

In this study, a 90-day course of a plant-based supplement significantly improved hair density, skin hydration, and nail growth among participants with dermatological concerns, while also reducing hair fall and pigmentation, without adverse effects.

This abstract does not provide study results but outlines that acne is influenced by factors like androgens, sebum production, abnormal keratinization, and inflammatory reactions involving lymphocytes, macrophages, and neutrophils.

Both skin products were equally effective in improving facial discoloration and skin quality.

This study suggests that the keratins found in reptile and bird skin appendages evolved independently from mammalian hair keratins, highlighting convergent evolution in these species.

This study by Flores and colleagues found that the type of tumor that develops in a specific subset of epidermal stem cells is influenced by which tumor suppressor gene is deleted.

This study found that humans have a much higher eccrine gland density than chimpanzees and macaques, suggesting a unique evolutionary path for human skin features.

This review outlines various clinical methods for assessing ageing skin and discusses their application in supporting the efficacy claims of anti-ageing treatments, but it reports no new clinical results.

This study found that a CLSM-based approach could semi-quantitatively assess the transdermal penetration behavior of fluorescent dyes with different lipophilicities, offering a tool for early-stage screening of compound penetration.

This article discusses isotretinoin for severe acne vulgaris, noting its effectiveness but also highlighting significant side effects on skin, mucous membranes, and hair; it reports no new clinical results.

In this study, pneumatic injections of non-cross-linked hyaluronic acid were associated with improvements in skin texture, pores, wrinkles, and transepidermal water loss in healthy female volunteers.

This study found that QV Face Rescue Gel effectively induces collagen production, reduces UV-induced erythema, and decreases transepidermal water loss on sensitive facial skin, while being nonstinging, nonirritating, and noncomedogenic.

Intradermal PRP significantly improved melasma in dark skin, with lasting results and no relapse after 3 months.

This study found that among women with PCOS, higher HOMA-IR levels were associated with acanthosis nigricans, and increased DHEA-SO4, FAI, and FI values were linked to hirsutism.

In this study, a topical cream containing 3% lactic acid ferment lysate (VHProbi ® MixP) was found to significantly reduce sebum, porphyrin levels, and pore size, while increasing hydration and improving skin texture in participants with oily skin over a 60-day period.

The supplement may improve hair growth and skin health with some mild risks.

This study found that valproic acid-loaded microemulsion formulations enhanced skin penetration pathways in guinea pigs compared to an aqueous solution, with composition elements like oil content and surfactant ratios significantly affecting drug delivery performance.

In this study, researchers found that topical mousse treatments containing chlorhexidine and other active ingredients showed significant antibacterial effects on both skin and hair in short-haired dogs, but mainly on hair in long-haired dogs, suggesting hair evaluations might overestimate skin-level efficacy.

This study found that four sessions of Intense Pulsed Light treatment significantly improved signs of photodamaged skin in adult female patients, as demonstrated by patient satisfaction and 3D camera assessments.

This study aimed to investigate the effects of antioxidant therapy on skin aging in MetS patients in Latvia but provides no new findings on its effectiveness.

This study evaluated a commercial topical solution with essential fatty acids for its potential effectiveness in treating skin disorders in rabbits.

This study found that a combination of botanical extracts from jasmine, Longoza, peony, and lily significantly increased a6 and b4 integrin protein expression in human skin cells, suggesting complementary effects that could enhance skin quality.

This research suggests that hair keratins evolved from claw keratins in a hairless ancestor, with Hoxc13 controlling their expression in tetrapods, evidenced by the knockout of Hoxc13 hindering claw formation in Xenopus tropicalis frogs.

This study identified a new S100 fused-type protein, scaffoldin, in reptiles and birds and suggests that SFTP-positive epithelia serve as scaffolds for the growth of various skin appendages, indicating a common evolutionary origin.

This study found that acne lesion formation involves early hyperkeratinization and inflammation around hair follicles, creating a self-sustaining cycle that may progressively worsen acne.

This study found that finasteride-loaded microemulsions using poloxamer 124 significantly enhanced skin penetration of the drug compared to a standard solution, primarily through targeting hair follicles via the transfollicular pathway, with intercluster, intercellular, and transcellular pathways contributing less.