February 2026 in “Clinical Cosmetic and Investigational Dermatology” This study found that mice exposed to low humidity showed altered epidermal gene expression, which was modulated by topical emollient application; this suggests emollients may help manage dry skin in low-humidity environments by affecting specific gene pathways.
October 2022 in “Chinese Journal of Dermatology” This study observed that skin dryness does not seem to indicate impaired epidermal barrier function, as there was no negative correlation between stratum corneum water content and transepidermal water loss.
February 2022 in “Cosmetic Dermatology” Healthy skin prevents water loss and protects against threats.
August 2019 in “Journal of Investigative Dermatology” This study found that tight junctions extend to the most superficial layer of the stratum granulosum in human skin, challenging previous claims of their limited presence in the epidermis.
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July 2022 in “International Journal of Molecular Sciences” This study found that treating reconstructed human epidermis with beta-lipohydroxy salicylic acid increased tight junction remnants in the stratum corneum, potentially affecting skin cohesion and desquamation.