Zenakine4 May 2025 09:22
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Unlock and Reveal the Power of Skin’s Chronobiology to Combat Cortisol Damage with Zenakine™
Interview with Hishda Mohamed, Senior Marketing Lead | Insights and Innovation, Croda Beauty Actives
What is chronobiology?
Every organ of our body has its own internal biological clock, synchronised by the centralclock in the brain. Chronobiology is the science that studies biological rhythms and howthey influence our body's functions, including skin functions.
Why is it important in skin care?
The human skin follows a 24-hour circadian rhythm that influences different functions such as cell proliferation, repair and defence, regulated by clock genes such as CLOCK, BMAL, PER and CRY. The expression of clock genes oscillates in a 24-hour cycle, peaking at different times of the day. For instance, PER1 and PER2 expressions peak in the morning when barrier function is increased allowing skin hydration and protection against external aggressors. CRY1 and CRY2 expressions, in contrary, peak at night when maximal cell repair mechanisms occur to ensure skin regeneration. It is then important to maintain this rhythmicity to promote skin health and longevity. However, lifestyle and life challenges can trigger the production of molecules such as cortisol that perturbates circadian rhythms, disrupting proper skin functions.
What is cortisol and how does it impact our skin and wellbeing?
Cortisol is a key messenger that helps regulate our body’s response to psychological and emotional challenges. It is beneficial for maintaining skin homeostasis during occasional stress. However, chronic stress leads to excessive cortisol accumulation that disrupts circadian rhythm, weakens the skin barrier, and reduces collagen production resulting in skin fatigue, dryness and premature ageing.
What is Zenakine™ and how does it counteract cortisol damage?
Zenakine™ is a cutting-edge neuroactive ingredient designed to counteract the effects of stress on the skin and overall wellbeing. It works in sync with the skin’s natural biological rhythms, enhancing melatonin production to help improve sleep quality, elevating positive emotions and stimulating skin regeneration. After 1 month of use, Zenakine™ restores skin firmness by 13.3 % (p