PEER-REVIEWED ARTICLE

Facial Skin Aging: Effect of Aging in Different Layers of the Skin on Wrinkles and Sagging

Dangdang Cheng · Qin Zhang · Wanwen Shan · Feifei WangJournal of biophotonics 2025, 18(9), e70028DOI 10.1002/jbio.70028 ↗

The supplied index reports a single-centre retrospective study examining correlations between skin microstructure parameters and wrinkles/sagging in 34 participants aged 42–60 after 56 days of anti-ageing product use. Epidermal ageing parameters showed stronger associations, dermal-epidermal junction parameters showed moderate associations, and dermal parameters showed no significant association within this cohort and observation period.

Epidermal ageing parameters showed a stronger association with wrinkles and sagging (based on data from 34 participants after 56 days of product use).From a single-centre retrospective observational study

Dermal-epidermal junction parameters showed a moderate association, and dermal parameters showed no significant association.From a single-centre retrospective observational study, correlation analysis

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