"Walnuts contain omega-3 essential fatty acids, which can improve skin's elasticity," Dr. Bank says. The nuts are also loaded with copper, a mineral that boosts collagen production. Snack on a handful of walnuts each day to improve your complexion's texture, and slough tough calluses with True Blue Spa Smoothing Foot Scrub Toe the Line ($15, bathandbodyworks.com). The ground walnut it contains acts as an exfoliant.
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