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Turnaround Time

2 weeks

Price

Our test prices are dependent on the quantity of test items.

Get in touch today to ask for pricing information. 

Illustrative diagram showing how skin barrier integrity affects the ability of the skin to retain moisture. 

Turnaround Time

4 - 6 weeks

Price

Our test prices are dependent on the quantity of test items.

Get in touch today to ask for pricing information. 

Trans-Epidermal Water Loss (TEWL) Test

In vivo and in vitro TEWL testing services available 

      For companies developing skin moisturizer formulations, it would be important to understand the skin condition and to prove the efficacy of the products before they were being marketed. This test can be used to measure the TEWL value to show its ability to reduce TEWL or skin moisture loss after applying the skin moisturizer formulation onto the skin.

  • Overview

      TEWL is the rate at which water vapor is lost from the body across the skin and is based on the measurement of the vapor pressure gradient between two points close to the skin. This test is a measure of the skin barrier integrity. External irritants that damage the skin barrier leads to water loss from the dermis and epidermis. This water loss is measured using a probe.