As both Nd:YAG and GentleMax Pro are effective for dark skin, the degree of efficacy and safety is a bit higher in the former one for black skin. Nd:YAG proved foolproof and increasingly popular for its minimal side effects. On the other hand, GentleMax Pro is also deemed safe for black skin as it produces two wavelengths with a varied range of pulse durations that destroys hair follicles on black skin adequately.