LightSheer Vs. GentleLASE - What's the Difference?

Both
the LightSheer and GentleLASE lasers work beautifully for laser hair removal.
The GentleLASE uses 755 nanometer wavelengths and the LightSheer uses about 808
to 810 nanometer wavelengths.

The
LightSheer, or diode laser, works a little bit deeper within the tissue.
However, the additional 50 nanometers of frequency does not equate additional
effectiveness in hair removal. The LightSheer also has a larger spot size;
practitioners can finish their sessions faster and offer less pain for
patients. (Neither of these lasers are particularly painful, especially when a
topical anesthetic is applied to the treatment site prior to beginning therapy.)

I see a
great efficacy with three sessions of either laser for slowing down hair growth
in treated areas. The bottom line - I
would pick whichever laser is more cost-effective at your dermatologist.

The GentleLase and Lighsheer are both very effective, and popular, hair removal lasers. 

The GentleLase (755nm long-pulsed Alexandrite laser) is a very effective laser for hair removal in lighter skin types.  It has excellent pick up by melanin (skin and hair pigment), making it great for hair removal in lighter skin types, but not a good option for colored skin.

The Lightsheer (810nm long-pulsed Diode laser) is not absorbed by melanin as well as the Alexandrite.  This may make it less effective for thinner or lighter brown hairs, but allows some darker skin types to be treated.  I still would not treat African American skin with this laser--- for dark brown or black skin I prefer the long-pulsed Nd:Yag lasers such as the GentleYag.

So-- for lighter skin types, especially if you have thinner or lighter pigmented hairs, the GentleLase is a better option.  If you are darker skin toned, such a darker Italian skin, Middle-Eastern, Hispanic etc-- the Lightsheer (or the GentleYag) would be a better choice.  For dark brown and black skin, stick with the GentleYag.