Scientists have demonstrated why sleep is so important for our skin via decoding our skin's night-time schedule and examining chronobiology and circadian rhythms.
Day vs Night
The skin’s functions change according to 24-hour cycles called circadian rhythms. It is the shift between the day and night that naturally regulates the internal clocks responsible for our circadian rhythms. During the day, the skin mainly defends itself against environmental aggressors, such as the wind, sun, cold or even pollution, while at night it focuses on regenerating itself in preparation for the next day. Irregular or poor sleep quality can disrupt the balance of our circadian rhythms and, in turn, affect skin quality, which may result in drawn features, a dull complexion and uneven skin tone.
Night-Time Repair Mechanisms
During the night, the skin is working its hardest to regenerate and repair itself in preparation for the next day. During this time 4 key skin regeneration cycles taking place: skin renewal, cellular differentiation, microcirculation & helping to recover the barrier function.
1. Cell regeneration for a radiant, younger-looking complexion
Studies have shown that the number of cell divisions reaches a maximum around the time between midnight and 1am, and a minimum in the day between 12pm and 1pm. This change demonstrates that cell regeneration is much higher at night than during the day.
2.Microcirculation stimulated for nourished skin
Skin blood flow reaches a peak between 11pm and 4am. This increase in blood flow at night is due to a peak in skin cell exchanges, which either provide nutrients or help eliminate toxins.
3. Skin shedding boosted for a radiant complexion!
The skin is constantly renewing itself, eliminating old cells to make way for new ones. This means the outermost layer of the epidermis is made up of dead cells ready to be removed. At the end of a four- to six-week cycle, they are eliminated from the skin's surface in the form of flakes. Studies have shown that this flaking on the surface layer of the skin reaches a maximum between 7pm and 11pm. This important part of the renewal process during night makes way for a radiant complexion by day!
4. Protective barrier strengthened for soft and soothed skin
This intensive night-time cell regeneration, alongside the increased cell differentiation, microcirculation and skin shedding, enables the skin to prepare itself for the next day when it will restore its protective barrier function.
Therefore it’s no surprise that we can wake up with a tired looking, grey complexion when our sleep is disrupted or cut short. However, it is not all doom and gloom Idealia Skin Sleep has been formulated for those who experience poor sleep. The formula, enriched with a complex of [GLYCYRRHIZIC ACID - HYALURONIC ACID - CAFFEINE-LHA], is designed to recreate the look of a good night's sleep. Therefore even if you've tossed and turned your skin looks fresh, rested and bright in the morning. Find further tips and advice on how to cope with a lack of sleep.