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Transepidermal Water Loss (TEWL) 

TEWL measurements are performed using a Tewameter® (C+K). TEWL shows whether skin is in a good condition.

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The Skin Test Institute is a Laboratory in Switzerland where they specialize in safety and in vivo efficacy testing of nutritional complements for skin, cosmetic ingredients and cosmetic products. Evaluation studies, both sensory and bioengineering, are completed with various groups of volunteers (e.g. skin type, age, ethnical). An example of these tests would include sebum casual level testing and moisture level testing. Moisture is evaluated using a Corneometer® (C+K) and a Sebumeter® (C+K) is used to help determine sebum casual levels.

Skin Test Institute makes their documentation available in the regions indicated below:

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