http://www.nbysolen-tech.com/facial-device/
Features of Portable Skin Moisture Testing Pen
1. Durable and safe to use.
2. Portable Skin Moisture Testing Pen can be used to test the the skin moisture, oil content, and also can be used to detect the fluorescer.
3. With different cute facial expression icons, keeps you aware of your current skin condition.
4. Highly sensitive probe offers more accurate result.
5. Stylish and portable with pen-type design, good for home, traveling, beauty salon and professional skin hospital.