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Fractional infrared technology is effective and safe for treating cervical laxity.

In this study, Nd:YAG picosecond lasers using fractional micro-lens array were found to have a comparable effect to ablative fractional Er:YAG lasers in treating atrophic acne scars, with better safety profiles but slightly less patient satisfaction.

In this pilot study, researchers found that fractional picosecond laser therapy may promote hair regrowth in men with mild-to-moderate androgenetic alopecia, with significant improvements in expert assessments and patient satisfaction observed over a four-month period, though further research is needed to confirm these findings.

This case report suggests that 1064 nm picosecond Nd:YAG laser therapy may effectively improve alopecia totalis when used as an alternative adjuvant treatment, as demonstrated in a split-scalp study showing better results than steroid treatment alone.

In this study, using a 1064 nm picosecond Nd:YAG laser effectively removed undesirable scalp micropigmentation in four patients within 1–3 treatment sessions, with no unexpected adverse events reported.