John Mayer Is the Beauty Blogger You Never Knew You Needed

"So okay, we've washed with Proactiv, and now it's time for the night moisturizing routine," Mayer explains, with his hair tied back like the rest of us.

Mayer's entire routine—Proactiv face wash aside—is comprised of products from Natura Bissé. "I have a feeling this is used mainly by people in their 60s and 70s, but I love it," he says.

Rather than spreading his Natura Bissé Diamond Life Infusion ($590; net-a-porter.com) onto his skin using his hands, Mayer demonstrates what he calls the D.A.T.—or, direct application technique. "Apply directly to the face," he explains. "Applying skin lotion to your hands and then rubbing it in gets a lot of lotion stuck in the creases of your fingers, and that's expensive." Noted.

Eye cream isn't limited to just your undereye area, at least if John Mayer has anything to say about it. "Eye Concentrate is really just better facial moisturizer, but more expensive and in smaller bottles," he says as he squirts Natura Bissé's Diamond Extreme Eye ($205; net-a-porter.com) all over his face. "Use it."

With his Vitamin C Complex ($190; barneys.com) in hand, Mayer enlists his D.A.T. technique to create what he calls "the offset smiley" along the lower portion of his face. He squirts two pumps on either side of his nose, then a curved line along his chin.

Clearly, John enjoys acronyms as much as he does skincare. Mayer follows by dotting Natura Bissé's Diamond Extreme ($345; barneys.com) over areas he's dubbed C.N.Z.s, or crucial necessity zones where he needs the most moisture. "This is the piéce de resistance," he says, holding up the jar. "This is some crazy sh-t." After applying spots all over his face, Mayer follows by blending the cream in with a Q-tip.

A veil of Natura Bissé's Diamond Mist ($92; barneys.com) is the final step in his routine. "This is gonna set in all the moisturizers you put on for the night," Mayer says. "You do not want to spray mists directly on your face, that's way too harsh for your skin. You want to spray it in front of your face and headbutt it."