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The truth about selenium
All minerals, selenium included, work to stimulate antioxidant production in the body. But, you must get them from your diet because your body does not naturally produce them. Selenium specifically is one of the most powerful minerals as it aids in the absorption of vitamin E in addition to protecting your skin's elasticity and providing sun protection.

The kicker is that you only need a very small amount of it -- think a millionth of a gram (55 mcg*) daily. More than that may be toxic and lead to hair and nail loss. "Many times, something that helps in low doses, can do the exact opposite in high doses. The very thing you're taking it for will actually start to deteriorate," says Canfield. So, if you take selenium and think your skin is getting worse, don't take more of the mineral, which would only aggravate it more, she says. It's quite the catch-22.

Where it's found: Canfield says that since U.S. soil has selenium in it almost anything that grows from the ground will contain it. Grains, wheat germ and legumes all have selenium, in addition to seafood and eggs. Canfield says, "it's really rare that someone has a selenium deficiency," so her advice is to avoid taking a supplement.

* According to the Linus Pauling Institute

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The truth about phytonutrients
Phytonutrients (like lycopene and lutein) are antioxidants that come from a plant substance. They have been shown to be powerful weapons in the fight against degenerative diseases.

And while Canfield points out that they don't have a direct affect on skin or hair, when you consume phytonutrients, it will improve the overall health of your body. And "whenever you're well nourished, your antioxidant intake is what it should be, and your immune system is at its best, then your skin is at its healthiest (assuming your getting adequate water)." Basically, "when your body is healthy, your skin is going to reflect that -- and so is your hair."

Where they're found: Lutein is found in veggies that have a yellow-orange pigment -- think butternut squash, and deep green vegetables like spinach and kale, says Canfield. Lycopene is found in red fruits and veggies -- and especially in tomatoes and tomato products. Other fruits like red watermelon, papaya, guava and pink grapefruit also contain the nutrient.

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The truth about supplements
This may come as a shock, but "it's a good general rule that you don�t need supplements, if you just focus on getting your fruits and veggies in," says Canfield. Plus, you'll get more nutrients and benefits from eating the antioxidants in their natural form, while avoiding an overdose. "When you try to extract something out of a food and put it in to a pill, you take it out of its natural environment, and there are other substances in the foods that help your body utilize the antioxidant better," she says.

That's why she recommends increasing your fruit and veggie consumption to eight or nine servings a day. One way to make sure you're getting variety is to "eat something that's from a [different] color of the rainbow every day." So have something white (cauliflower, onion, potato), and red (tomato, watermelon) and so forth. "Then, you'll get a nice mix of phytonutrients, vitamins and minerals."

Simpson agrees saying, "the biggest myth is how people think they can supplement with antioxidants and not have to follow a balanced eating plan. [Good health] is really about synergy." Simpson personally looks at supplementation to "complement diet," not replace it.

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The truth about ingesting vs. applying antioxidants
"When you're talking about nutricosmetics, people think they're replacing a topical product or regimen, but that isn't the case," says Simpson. "When you're applying [the antioxidant] topically, you're putting it on the acute area. When you're taking an ingestible, that's going to go through the body, and works systemically." The primary difference between topical and oral applications of nutricosmetics is that topical products directly the area it's applied to (such as your under eye area), but consuming the nutrients will improve your skin from head to toe.

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The truth about results
Simpson says a prevalent misconception many women have is that you'll see instant results from taking ingestibles. But the truth is, it takes three to five weeks for new skin cells to grow, so regardless of whether you apply antioxidant-rich products topically or consume the nutrients, it'll take at least that much time for results to show.

Antioxidants. We hear this word every day as it relates to maintaining a healthy skin diet and we assume we also need them in our skin care regimen. But what are these antioxidants exactly and what do they do?

Warring camps in the dermatology world are having ongoing debates about the importance of antioxidants. In fact, the Journal of the American Medical Association conducted a study that shows that ingesting too many antioxidants may cause harmful toxin levels in our bodies to rise, which may, in turn, cause cancer. A scary thought indeed.

Skip to get the 411 on antioxidants now.

But we do also know that antioxidants are the nutrients that protect our bodies from nasty little free radicals, which attack cell membranes and cause accelerated aging and chronic disease. In essence, antioxidants act as a shield, taking the hits these free radicals fire and neutralizing them before they can attack healthy cells.

Because of their protective properties, antioxidants are said to reduce signs of aging and prevent certain cancers. But the question must be asked -- are the superpowers these nutrients seem to have too good to be true? And could they really be causing more harm than good?

To figure out the answer we went to Gayl Canfield, Director of Nutrition at Pritikin Longevity Center + Spa in Miami and celebrity nutritionists Paula Simpson and Joy Bauer. Here they boil down the conflicting chatter you've likely heard about the antioxidants contained in the nutricosmetics and nutritional supplements that claim to support your skin's youthful image. You'll find that while some are necessary for healthy skin, others may actually wreak havoc.

Get the 411 on antioxidants now.
BY SHARON J. YI | SHARES
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