For Skin Tones 3 through 6, there are situations where both wavelengths may be used within the same session. This is not required and not always appropriate, but it can be effective when treating mixed hair types or more resistant growth.
The Nd:YAG delivers deeper heat into the follicle, while the Alexandrite targets pigment more aggressively at a more superficial level.
This approach requires strong understanding of both devices, proper sequencing, and the ability to read the skin in real time.
This is an advanced technique and is covered in full detail in Section 2.