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"1. Glycolic acid Considered one of the top exfoliators in skincare, glycolic acid&amp;#039;s buffing properties help treat acne, stimulate collagen, even skin tone, minimize fine lines, and reduce the appearance of hyperpigmentation. &amp;quot;Glycolic acid works by breaking down substances that bond dead skin cells,&amp;quot; says Neil Sadick, MD, Clinical Professor of Dermatology at Weill-Cornell Medical College, who recommends Peter Thomas Roth Glycolic Acid 10% Moisturizer ($25, amazon.com). 2. Vitamin D You know that vitamin D boosts bone health, but it also benefits your skin. &amp;quot;Having sufficient vitamin D in the skin helps minimize acne, boost elasticity, stimulate collagen production, enhance radiance, reduce lines, and lessen the appearance of dark spots,&amp;quot; says Sadick. (You can \u2014 and should \u2014 work the vitamin into your skincare regimen even on cloudy days.) Gary Goldfaden, MD, founder of Goldfaden, recommends the Dr. Dennis Gross Skincare Active Vitamin D Serum Oil ($65, dgskincare.com). Massage a couple of drops into a clean complexion (day or night) and follow up with lotion. 3. Collagen Collagen is the key protein that&amp;#039;s responsible for that firm, smooth &amp;quot;youthful&amp;quot; plumpness, which unfortunately diminishes with age. &amp;quot;While products with collagen won&amp;#039;t cause your skin to rebuild its own collagen, they do help to retain moisture and self-repair, mimicking the skin&amp;#039;s natural structure,&amp;quot; says Marina I. Peredo, MD, founder of Marina I. Peredo Dermatology and Spatique Medical Spa. She likes L&amp;#039;Oreal Collagen Moisture Filler Daily Moisturizer Night Cream ($12, amazon.com). 4. Peptides Peptides are among the most common anti-aging ingredients, Peredo says, because they &amp;quot;help stimulate collagen production, repair damage skin and boost natural antioxidant activity.&amp;quot; And unlike other volatile ingredients, peptides can be used daily in conjunction with other skincare products. Sadick recommends Olay Regenerist Advanced Anti-Aging Night Recovery moisturizing cream ($13, amazon.com). 5. Grapeseed oil Don&amp;#039;t shy away from this skincare hero just because you have an oily sheen! Derived from seeds of grapes, the oil is rich in antioxidants and easily absorbable. &amp;quot;Often referenced to as nature&amp;#039;s perfect moisturizer, it&amp;#039;s great for sensitive and acne-prone skin,&amp;quot; says Goldfaden, who recommends Yes to Cucumbers Calming Night Cream ($10, amazon.com). Since many oils are derived from nuts, grapeseed oil gets a gold star for its allergy-free nature and its ability to treat a handful of chronic skincare conditions, like psoriasis and eczema. 6. Tea tree oil Probably the most multitasking ingredient, tee tree oil serves as a cure-all and treats everything from warts to dandruff. It has anti-inflammatory, antiseptic, anti-viral, and anti-fungal properties, says Sadick. Tea tree oil is also used in shampoos, acne products, soaps, and ointments. Peredo says it also provides therapeutic benefits to severely chapped lips and razor burns. Try The Body Shop&amp;#039;s Tea Tree Skin Care Kit ($25, thebodyshop.com). 7. Lycopene You know it as the pigment (officially: carotene) found in red fruits and vegetables, like tomatoes, carrots, bell peppers, watermelons, and papayas. While it&amp;#039;s known to have UV protection, Kristen Ahern, MD, says its equivalent SPF level would only be 3, so don&amp;#039;t replace your daily broad-spectrum sunscreen with a lycopene-laced product. But lycopene does boast other benefits. Higher traces of it are linked with reduced &amp;quot;oxidative damage that occurs from daily exposure to the sun and other environmental pollutants,&amp;quot; says Sadick. Try 100% Pure Tomato Lycopene Face Cream ($32; 100percentpure.com).   8. Shea butter This intense hydrator is found in most heavy-duty creams (hand creams and lip balms, too), and for good reason, because it&amp;#039;s rich in vitamins and excels at nourishing the skin \u2014 perfect for winter. Slather it on everywhere or use it as a spot treatment for chapped and dehydrated areas. Peredo likes Eucerin Daily Defense Moisturizing Lotion ($7, target.com). 9. Sulfur Sulfur gets a bad rap for its not-so-pleasant scent, but derms swear by this acne fighter. It draws out impurities to help clarify skin. Usually found in masks, like Murad Clarifying Mask ($34; amazon.com), sulfur is used in creams and lotions that can help clear up seborrheic dermatitis, rosacea, eczema and even dandruff, says Sadick. 10. Caffeine Caffeine is known for minimizing the appearance of cellulite, as it helps constrict blood vessels. &amp;quot;However, once you stop using the product, results will begin to diminish,&amp;quot; warns Peredo. For a good product that aims at tightening skin, she suggests Dermelect Cosmeceuticals Lipo-Conquer Body Toning Cream ($32; amazon.com). Caffeine&amp;#039;s other uses include lightening dark under eye circles and healing sun damage, adds Ahern. 11. Honey As nature&amp;#039;s golden healer, honey is brimming with all sorts of goodness. Thanks to its antibacterial properties, honey is a pro at killing acne-causing bacteria. Plus, it&amp;#039;s a natural humectant and exfoliant, since it contains alpha hydroxy acids, says Peredo. Use honey as a scrub, like Epicuren Cinnamon Vanilla Brown Sugar Scrub ($46, amazon.com), to lessen the appearance of skin imperfections and boost radiance. 12. Pumpkin enzymes Not just for pies and jack o&amp;#039; lanterns, pumpkin is a skincare star. It&amp;#039;s chock-full of essential vitamins, like A and C, and antioxidants that help reduce inflammation and redness. &amp;quot;Pumpkin can be beneficial in skincare products and is worth it, especially if you have skin damaged from the sun,&amp;quot; says Peredo, who recommends glotherapeutics Pumpkin Enzyme Scrub ($32, gloprofessional.com). 13. Blueberries The sweet berry may be tiny, but it packs huge skincare benefits. Loaded with antioxidants, blueberries have natural sunscreen properties (but don&amp;#039;t toss your sunscreen) and can combat damaging oxidation processes, says Sadick. Plus, it helps reduce redness and soothes acne-prone skin, says Goldfaden who likes Yes to Blueberries Intense Skin Repair Serum ($19, amazon.com). 14. CC cream If you&amp;#039;re a fan of BB cream, you may want to try CC cream. CC stands for &amp;quot;color correct&amp;quot; or &amp;quot;color care,&amp;quot; and it differs from BB in that it&amp;#039;s lighter in texture but offers a little more coverage, says Goldfaden. The all-in-one hydrates, primes, and protects with SPF. Since it does marry makeup and skin care, CC cream is perfect for someone who is looking for a product that does a bit of everything. The sunscreen component can leave the cream feeling sticky. &amp;quot;CC creams work for some people, but others still find the texture too heavy,&amp;quot; says Goldfaden. Curious? Give this one a whirl: Ole Henriksen Perfect Truth CC Cr\u00E8me Broad Spectrum SPF 30 ($36, sephora.com). "^^<http://www.w3.org/2001/XMLSchema#string>
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