Fast, Easy, and Scientifically Trusted TEWL Meter
VapoMeter® (VX)
VapoMeter® (VX) is Delfin’s latest generation of portable TEWL meters, offering effortless operation and scientifically proven accuracy - now with a smart, ergonomic design and intelligent features that make skin barrier research more efficient than ever.
VapoMeter® (VX) - TEWL. Smart simplicity. Reliable science. Closed-Chamber.
Transepidermal water loss (TEWL) is a key indicator of skin barrier function, and accurate measurement is essential for both clinical research and personal care applications. Powered by Delfin’s validated closed-chamber technology, the VapoMeter® (VX) delivers fast and repeatable TEWL measurements, making it ideal for both laboratory and on-site testing.
Unlike open-chamber TEWL meters, the closed-chamber of VapoMeter® (VX) principle shields measurements from ambient airflows and orientation effects, enabling reliable readings within seconds. With improved usability and a user-replaceable calibrated sensor, the VapoMeter® (VX) also includes a built-in skin temperature sensor. Recording the skin temperature with each TEWL measurement helps users interpret and analyze results more effectively. Diffusion cell adapters will soon be available, enabling the device to support in vitro measurements.
Designed for science - keeping the user in mind
From R&D labs to clinical trials, VapoMeter® (VX) is built for professionals who value simplicity, and science in one device. Whether you're testing cosmetic formulations, studying skin barrier recovery, developing topical treatments, or conducting in vitro assessments, VapoMeter® (VX) helps streamline your work while ensuring data quality. It's the perfect balance of scientific performance and modern usability. Experience the new standard in TEWL testing.
Benefits
- Closed-chamber measurement principle
- Smart ergonomic design with high-resolution display
- Fast measurement process
- User-replaceable calibrated sensor (no shipping for calibration)
- Built-in skin temperature measurement
- Remote software updates
- Bluetooth & Wi-Fi Connectivity
- Intelligent on-screen guidance
- Sensor check procedure
- ESG-friendly, reusable design
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FAQs
FAQs
Transepidermal water loss (TEWL) is the amount of water that evaporates through the skin. It is one of the most important indicators of skin barrier function. High TEWL levels signal barrier damage, which is linked to conditions such as eczema, psoriasis, and irritant dermatitis. Measuring TEWL provides objective data for dermatology, cosmetics testing, and skin research.
Working on skin hydration measurements instead of TEWL? See Delfin's skin hydration testing devices.
VapoMeter measures TEWL with a closed-chamber method. The device captures water vapor inside a sealed chamber placed on the skin, and built-in sensors calculate the evaporation rate. This technique provides fast, reliable results in seconds and is unaffected by ambient airflows or the instrument’s orientation.
The closed-chamber method protects measurements from external factors such as airflow, temperature changes, and humidity variations. This ensures more consistent, repeatable results compared to open-chamber devices, where environmental conditions can distort readings. VapoMeter’s closed-chamber design makes it ideal for both clinical studies and field research.
Yes. The VapoMeter is often referred to as a vaporimeter or vapourimeter. All of these terms describe a device for measuring transepidermal water loss (TEWL) using the closed-chamber method. The VapoMeter is the first and only fully portable closed-chamber TEWL meter available.
In vivo refers to measurements performed directly on living skin, while in vitro refers to tests carried out in laboratory settings, often using skin samples or Franz cells. The VapoMeter is designed for both in vivo and in vitro use, providing accurate TEWL measurements across clinical studies, cosmetic testing, and skin physiology research.
