Our editor-approved list of the products, treatments, and trends to try this week.

•Prep your hair for spring. Winter's rapid temperature changes (going from extreme indoor heating to bitter outdoor coldness) can stress out strands. We just discovered the Paul Mitchell in-salon KeraTriplex Treatment as an easy, convenient way to give hair the T.L.C. it needs to get ready for a new season. This keratin-based formula was thirty years in the making, and prevents and repairs damage breakage by coating the cuticle with good-for-you ingredients like awapuhi (a type of wild ginger). Yum.

•Try a natural toothpaste. Did you know that some whitening toothpastes may be too abrasive for sensitive teeth and gums? The rough edges of ingredients like silica can scratch the gum's surface, causing bleeding and irritation. If you're looking for a gentler way to brush away your Easter-candy indulgences, try a greener toothpaste, like Dentisse Natural Reflection, which is free of chemical additives and uses kaolin (a type of soft clay) to scrub teeth clean.

•Get interactive with your makeup purchases. Asking your girlfriends for makeup-buying advice has never been this easy. MAC just launched the Shop Together feature on their site which allows you to chat up with to five friends to discuss which purchases are best-suited for and you—and your BFF.

•Get an eco-friendly facial. Thanks to Tata Harper, the impossibly chic founder of the self-named, 100% natural skin-care range, going green is now as easy as going to the gym. To slough away dull skin this spring, visit your local Equinox to get the Tata Harper signature facial. Even though all of the ingredients used in Harper's products are grown on her organic Vermont farm, this anti-aging facial delivers uptown-worthy, fast results.