Transitioning from Anti-aging to Skin Activation: Limiting Cellular Fatigue and Senescence for Skin Longevity

Area of Science:

• Dermatology
• Aging Research
• Cellular Biology

Background:

• Skin thinning (dermatoporosis) is a natural aging process characterized by structural weakness, impaired barrier function, and cellular senescence.
• These age-related changes present significant challenges for maintaining long-term skin health and integrity.

Purpose of the Study:

• To introduce Skin Activation as a novel dermatologic strategy aimed at promoting skin longevity and resilience.
• This approach integrates methods to remodel the extracellular matrix (ECM) and dermo-epidermal junction (DEJ), restore skin barrier function, enhance hydration, and reduce senescent cells.

Main Methods:

• Data were collected from a multicenter dermatoporosis trial, a randomized controlled trial, and sensitive skin patient cohorts, alongside preclinical studies.
• Key endpoints included assessments of trans-epidermal water loss (TEWL), hydration, skin thickness via LC-Optical Coherence Tomography (LC-OCT), DEJ integrity, ultrasound measurements, and analysis of senescent markers, cytokine profiles, and cellular renewal biomarkers.

Main Results:

• Participants showed significant improvements: 20-40% reduction in TEWL, an 80% increase in hydration, and a 5% increase in skin thickness.
• Eighty-three percent of subjects exhibited improved DEJ integrity compared to 17% in controls.
• Preclinical models demonstrated reduced fibroblast senescence and activation of the JAG/NOTCH pathway.

Conclusions:

• The Skin Activation program represents a shift from general anti-aging to a targeted strategy focusing on skin structure, function, cellular energy, and renewal.
• This innovative approach offers a structured method for enhancing skin longevity and reinforcing dermatological advancements.