When it comes to skin care, it's easy to go overboard. There are so many products, ingredients, and benefits, figuring out what you need can be a real challenge. InStyle  discovered that there's only one ingredient you need for flawless skin all Summer long.
My skincare regimen is extensive to put it lightly. I regularly slather miracle serums and potions on my face (and neck!) with wild abandon. But this summer, I've finally given in to some streamlining. And now there's one secret ingredient that I won't leave the house without, and what it is just might surprise you. It's not a $500 oil phenom but good old zinc oxide. Every dermatologist I've ever interviewed (and there have been many) has insisted that mineral-based sunscreens such as zinc are the only real way to prevent skin damage and premature aging. Dr. Cybele Fishman told us that it's an inert mineral which blocks both UVA and UVB rays. Zinc oxide and titanium dioxide sit on top of the skin, forming a barrier against the sun's rays. Sunscreens with zinc start protecting you as soon as you put them on. You may have heard you should look for a "broad-spectrum" product that protects against both UVA and UVB rays. Any sunscreen that contains the physical blocker zinc oxide or titanium dioxide will have you covered.
This year I turned 40 and my charming freckles that I hadn't seen since childhood reemerged as sunspots — significantly less charming. Dr. David Colbert told me the damage wasn't new or recently acquired. It was from all the days at the beach that I laid around with nothing but a reflector and a bottle of baby oil coming back to haunt me. Colbert said the only way to truly prevent them from coming back is with zinc sunscreens. Even wearing an SPF 50 UVA doesn't have the same protection as a mineral sunscreen. If zinc brings to mind the white, pasty noses of '80s lifeguards, let me introduce you to the new wave. Click through the gallery to see the best, most lightweight and effective products out there. Happy Summer!
More from InStyle:
SPF-Infused Foundations to Protect and Correct 
Manicure Game Changers 
How to Get a Perfect Faux Tan, No Matter Your Skin Tone 
Peter Thomas Roth Instant Mineral SPF 45
With sunscreen needing reapplication every 80 minutes, this mineral powder  ($30) is perfect for quick touch ups, and unlike most sunscreens, leaves a matte finish.
Kiss My Face Natural Mineral Sunscreen SPF 40
Kiss My Face’s double-acting formula  ($17) incorporates Hydresia, a moisturizing oleosome from safflower, as well as a clear, water-resistant formula.
Badger Organic Sunscreen Base with Zinc Oxide
In addition to being organic, with a base of Sunflower Oil, Beeswax, Seabuckthorn, and Vitamin E, Badger’s formula  ($16) is environmentally friendly and biodegradable.
Make Face Primer SPF 30
This primer  ($32) provides an easy way to incorporate SPF into your routine, protecting against UV-rays while concealing imperfections.
Skinceuticals Physical Eye UV Defense SPF 50
Many sunscreen labels warn against applying near the eye area, however SkinCeuticals’ treatment  ($30) is specifically formulated for its delicate surface, and won’t cause irritation.
CeraVe Sunscreen for Body SPF 50
Zinc Oxide is notoriously heavy, however, CeraVe's sunscreen  ($17) is lightweight and won't disturb even sensitive skin.
Mustela SPF 50+ Broad Spectrum Mineral Sunscreen Lotion
Mustela's mineral lotion  ($22), intended for children and babies, provides the perfect solution for those with sensitivity to the harsh chemicals and fragrances found in many formulas.
Chantecaille Protection Naturelle SPF Powder and Refill
The NYC-based brand's powder  ($72) melds naturally to skin whether applied to bare skin or layered over makeup, and doesn't have the chalky feel or residue of many other powders on the market.
Elta MD UV Aero Broad-Spectrum SPF 45
When it comes to sunscreen, sprays are certainly the most convenient formula, yet can be tricky in terms of ensuring you receive full coverage. EltaMD's spray  ($34) is white rather than clear, leaving no missed spots.
SkinMedica Environmental Defense Sunscreen SPF 50+
SkinMedica's sunscreen  ($47) claims to be "very water resistant," and combines antioxidants Green Tea, Caffeine, Vitamin E, and Picea Excelsa to help shield skin from free radicals.