Fig. 5:

Comparative measurements of the improvements in (a) mean pore size and (b) mean sebum levels between the groups treated with the micropulsed and Q-switched 1064 nm Nd:YAG laser. Although significant improvements in both pore size and sebum level were seen for both modes, there was no significant difference in improvement between the modes themselves. Note the slight falling-off in efficacy for both modes at the 8-week assessment.