Low moisture levels in the skin are caused by a natural lack of water or by an ongoing increase in a process called transepidermal water loss (TEWL).
Put simply, TEWL is the process of water within the skin rising to the surface and escaping. It’s a normal and healthy skin function; however, too much TEWL and skin becomes persistently low in moisture.
There are ultimately three ways that a moisturiser can solve this problem:
1. Increasing water content
2. Preventing the rise of water to the upper skin surface
3. Minimising evaporation
Humectants, Emollients, and Occlusives have these effects three effects, respectively.
Each one of these categories of ingredients will help to moisturise the Skin. Many moisturisers contain only two of the three, but for the greatest possible effect, H.E.O. Mask combines all three in an optimised ratio for synergistic hydration power.
The Medik8 research team developed the final ratio of humectants emollients and occlusives after trialling several different options, gathering instrumental data (using corneometry) and detailed user feedback to determine the optimum levels for overnight hydration.
This unique combination of gold standard moisturising ingredients can only be found in H.E.O.