I'm a barber, and a self proclaimed product snob. I'm always on the lookout for products that not only work well, but aren't going to leave behind gnarly buildup and residue on my clients/my own hair. The entire Patrick's line has blown me away, and is the only line that ACTUALLY works the way it says it should, for it's suggested hair type. I have dense, fine hair (lots of hair, but the individual strands are fine) that I typically wear in a loose pompadour. M1 is my favorite product for my hair (and clients with fine hair, no matter how sparse or dense) for getting definition, volume, texture, and touchable hold. I'm able to apply it to towel dried hair, and let it air dry without it falling flat. Or I can blow dry for more volume. The scent is clean, and masculine, the packaging is on-point, and the PRC has proven to be effective. I have yet to see any thinning in my hair (knock on wood!), but my hair definitely seems more thick, full, soft, and voluminous. And I've seen serious improvement in my clients that have thinner hair. All in all, this line has crushed it. I'll not be taking my business elsewhere anytime soon.