This device uses **808nm diode laser technology with ice cooling** and is designed for professional-grade hair removal. It generally works best on **light to medium skin tones with dark hair**. Darker skin tones require extra caution and appropriate settings to reduce the risk of burns or pigmentation changes. **Yes, it can be used in a home spa for personal use**, provided you follow the instructions and safety precautions carefully. If you plan to treat clients, professional training and compliance with local regulations are recommended. For confirmation of compatibility with your specific skin tone, please contact **service@freyara.com** before purchasing.