Probably would not do much to flesh other than a sharp prick of pain and
maybe some burnt tissue if the beam is delivering enough power in a short enough amount of time.
I've got a slightly less powerful (~120mW) blu-ray laser like that and have been crazy enough to shine it on my own skin. You can definitely feel it, takes about a second or two of continuous contact before the sensation crosses the threshold of pain and triggers the involuntary "OW"
*jerk hand away* reaction.
The real danger is to your eyes, of course. Even the most brief exposure to the beam will do irreversible damage to your retina. And by 'irreversible damage' I mean put a hole right through it. The short wavelength of violet light also isn't too healthy.
The mechanisms for photochemical induced retinal injury are caused by the absorption of light by photoreceptors in the eye. Under normal conditions when light hits a photoreceptor, the cell bleaches and becomes useless until it has recovered through a metabolic process called the visual cycle.[5][6] Absorption of blue light, however, has been shown to cause a reversal of the process where cells become unbleached and responsive again to light before they are ready. This greatly increases the potential for oxidative damage.[7] By this mechanism, some biological tissues such as skin, the lens of the eye, and in particular the retina may show irreversible changes induced by prolonged exposure to moderate levels of UV radiation and short-wavelength light.
