So, you may be wondering, how do I choose the best pen for my needs? Well, first note, all pen models will perform very similar. There are some unique features that make one pen a bit more advantageous than another model for a specific application. The Ultima A6 Deluxe Pro kit is still peoples choice as its features and specifications make it the most versatile Dr. pen® in the line up. Medium 32 gauge pins for all skin types, wireless capable, and... the most assortment and easiest to find replacement tips. Women, Men, and all ages use this model for bbglow to reversing the appearance of pits / stretch marks/ scars and more.