Related Experiment Video
Updated: Mar 6, 2026

Induction and Validation of Cellular Senescence in Primary Human Cells
Published on: June 20, 2018
Transitioning from Anti-aging to Skin Activation: Limiting Cellular Fatigue and Senescence for Skin Longevity
Background:
Skin thinning, known as dermatoporosis, is an expected consequence of aging that involves structural weaknesses, barrier deficiencies, and cellular senescence, posing challenges for maintaining long-term skin health.
Objective:
To introduce Skin Activation as a dermatologic strategy for promoting skin longevity. It is supported by clinical and preclinical evidence, combining methods to remodel the extracellular matrix (ECM) and dermo-epidermal junction (DEJ), restore the barrier, and enhance hydration, along with reducing senescent cells. This improves the skin's functional resilience.
Methods:
Data were generated from a multicenter dermatoporosis trial, a randomized controlled trial, and specific cohorts of sensitive skin patients, in addition to preclinical studies. Study endpoints included trans-epidermal water loss (TEWL), hydration levels, LC-Optical Coherence Tomography (LC-OCT), assessments of the DEJ, ultrasound measurements, senescent markers, and histology. The data also included measures of senescence, cytokine profiles, and biomarkers of cellular renewal.
Results:
Among 400 participants, notable changes included a 20-40% reduction in TEWL, an 80% increase in hydration based on corneometer readings, a 5% rise in skin thickness, and improved DEJ integrity in 83% of subjects compared to 17% of controls. In preclinical ex vivo models, decreases in fibroblast senescence levels were observed, along with activation of the JAG/NOTCH pathway.
Conclusion:
A recently developed skin activator program shifts dermatologic skin health strategies from a broad anti-aging focus to a more targeted skin activation approach focused on structure, function, and cellular energy and renewal. This reinforces the ongoing commitment to dermatological innovation and establishes a more structured approach to skin longevity.  .
Insights
Skin Activation therapy improves skin structure and function by remodeling the extracellular matrix and dermo-epidermal junction. This approach enhances skin resilience and hydration, combating aging-related skin thinning.
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.
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