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The 7 Best Skin Supplements For A Healthy Glow — A Dermatologist Explains

Whitney Bowe, M.D.
Author:
June 10, 2022
Whitney Bowe, M.D.
Dermatologist
By Whitney Bowe, M.D.
Dermatologist
Whitney Bowe, M.D. is an author and dermatologist living in Greenwich, Connecticut. She attended Yale University, where she graduated Summa Cum Laude with a Bachelor of Science in Molecular, Cellular, and Developmental Biology.

For the most part, we can get all our nutrients, including vitamins, minerals, and probiotics, from our diets—and we should aim for that. But let’s be honest: Achieving optimal levels through diet alone on a daily basis is often not realistic today (at least not for me and my patients!). We are busy, and our dietary options can fall short once in a while, despite our best efforts.

The ones I’ve chosen to highlight are the vitamins and supplements most helpful in accomplishing two important goals: first, supporting the gut-brain-skin axis by nourishing the intestinal microbiome, and second, giving the body what it needs to maintain healthy skin (and, I should add, healthy hair and nails).

Here are my go-to-glow supplement recommendations—but do consult with your doctor before starting a supplement routine.

1. Vitamin E supplement (400 IU daily)

This fat-soluble vitamin is an antioxidant that stops the production of free radicals when fat undergoes oxidation. In addition to its activities as an antioxidant, vitamin E is involved in immune function1, cell signaling, regulation of gene expression2, and possibly other metabolic processes3. The term vitamin E actually is the collective name for a group of fat-soluble compounds with distinctive antioxidant properties. Vitamin E is very difficult to consume through diet because it’s not found in many foods (sunflower seeds and some nuts contain this vitamin). Moreover, UV damage rapidly depletes vitamin E.

Summary

Vitamin E is a fat-soluble antioxidant that helps lipids in our body fight free radical damage. I can help with immune function and overall cell function. Want to learn more about vitamin E benefits for the skin? Check out this story.

2. Vitamin C supplement (1,000 milligrams daily)

The vitamin famously linked with citrus fruits does a lot more than boost immunity. It not only promotes fibroblast proliferation4 (fibroblasts are the cells that produce collagen and other fibers), but it also acts as an assistant (a "cofactor") in enzymatic activity that relates directly to skin health and function. It even controls some of the DNA repair that goes on in skin to forestall cancerous growths. Its association with cells that control skin pigmentation (melanocytes) makes it a helpful ingredient in products that address skin discoloration. Because this vitamin is so easily lost in our urine, it’s ideal to consume vitamin-C-rich foods throughout the day via fresh fruits and vegetables while also taking a supplement. Foods high in vitamin C include red peppers, kale, broccoli, Brussels sprouts, tomatoes, and, of course, oranges (but please eat them whole—never juiced!).

Summary

Vitamin C is a water-soluble antioxidant that helps your body build collagen, boosts immunity, and controls DNA repair. Not sure where to find potent vitamin C supplements? Here's a list of our top picks.

3. Vitamin D supplement (1,000 IU daily)

Actually a hormone, not a vitamin, vitamin D is produced in the skin upon exposure to UV radiation from the sun. It participates in a wide variety of biological actions to promote health, including strengthening bones and increasing calcium levels. In fact, there are receptors for vitamin D throughout the body, which speaks volumes about its importance. Both animal and laboratory studies show that vitamin D protects neurons from the damaging effects of free radicals5 and can reduce inflammation—all good things in terms of skin health. In 2017, a team of researchers at University Hospitals Cleveland Medical Center showed that oral supplementation of vitamin D can quickly reduce inflammation caused by a sunburn6. We have evidence now that vitamin D deficiency and the development of melanoma7—the most deadly type of skin cancer—are related. And here’s another critical fact: Vitamin D performs a lot of its tasks through its regulation of gut bacteria8.

It is best to get this vitamin by consuming supplements (and foods and fortified drinks) rather than exposing oneself to skin-damaging sun. Foods such as salmon, mushrooms, cheese, eggs, and fortified products such as almond milk all contain vitamin D. The safe upper limit is 4,000 IU per day, so if you take a 1,000 IU supplement and eat a few eggs or a piece of salmon in a single 24-hour period, you’re still in a very safe range.

Summary

Vitamin D is produced in the skin upon exposure to UV radiation from the sun. It participates in a wide variety of biological actions to promote health, including strengthening bones and increasing calcium levels. Here's a list of our favorite vitamin D supplements to make shopping easy.

4. Calcium supplement (500 milligrams daily)

A common element in the human body, calcium is critical to the health not only of your bones and teeth but of all bodily organs, including the skin, where it plays a role in regulating the skin’s many functions9. Most calcium in the skin is found in the outermost layer, and if there’s not enough there, your epidermis can appear fragile, thin, and dry. A lack of calcium in the skin will prevent the production of new skin growth and the shedding of dead skin cells10. In other words, skin turnover comes to a screeching halt. Calcium ions also allow neurons to signal one another, which ties in to the gut-brain-skin axis11. It’s fine to find a calcium supplement that contains vitamin D (in which case you don’t need a vitamin D supplement).

Summary

Calcium is critical to the health not only of your bones and teeth but of all bodily organs, including the skin, where it plays a role in regulating the skin’s many functions. Oftentimes, calcium is found in high-quality multivitamins. We picked out the very best multis for each benefit—here's that list.

5. Collagen supplement

Collagen is the body’s most abundant protein. It comprises one-third of the body’s total protein, accounts for three-quarters of the dry weight of skin, and is the most prevalent component of the extra-cellular matrix. So as you can imagine, collagen continuously undergoes a cycle of renewal (including breakdown and repair). In fact it’s what makes your skin (and muscles, which are also rich in collagen) particularly adept at preparing cells after damage. Ingesting collagen on the daily can help with this renewal process.

Summary

Collagen is the body’s most abundant protein and needed for proper skin health. Ingesting it can support your body's natural production. The world of collagen supplements can be difficult to navigate, so here's a list of 15 of the very best collagen supplements to make it simple.

6. Trace mineral supplements

The minerals most essential to skin health are zinc, copper, and selenium. If you get enough in your diet, you will not be deficient in these minerals and will not need to supplement with them, so be sure to do testing with your doctor. Look for them in the supplements I’ve already recommended, to which they are often added.

Zinc (10-30 mg daily)

This mineral works as an antioxidant, lessening the formation of damaging free radicals12 and protecting skin fats and fibroblasts. Because zinc is involved with cellular turnover and immune function, it is thought to help reduce acne flare-ups13. The amount you take will depend somewhat on your diet (zinc is naturally found in grass-fed meat, grains, oysters, sesame and pumpkin seeds, peas, and beans). You don’t want to go overboard with zinc because too much of it will put you at risk for copper deficiency14 (large doses of zinc prevent the absorption of copper in the digestive tract). These two minerals work together. Do not take zinc on an empty stomach, for it can cause stomach upset and nausea. Aim to take zinc halfway through a meal or right after. Not sure where to find a zinc supplement? We narrowed down the list for you; here, 13 great options.

Copper (1.5 - 3 mg daily)

Copper peptides in skin care products promote the production of collagen and elastin, among other important skin structures, and act as an anti-inflammatory15. Copper also benefits your skin when taken orally because it’s a factor in many enzymatic activities16 that promote healthy skin, hair, and even eyes. Good food sources of copper include dark leafy greens, legumes (especially beans), nuts and seeds, mushrooms, shellfish (especially oysters), avocados, and whole grains.

Chelated selenium (45 mcg daily)

This trace mineral is an antioxidant that protects other antioxidants, such as vitamin E. Studies have shown that a deficiency in selenium may play a role in inflammatory skin conditions such as acne, eczema, and psoriasis17. Selenium functions in an enzyme called glutathione peroxidase, which is important in preventing the inflammation that characterizes acne. Foods high in selenium include Brazil nuts, halibut, sardines, grass-fed beef, turkey, and chicken.

Summary

The minerals most essential to skin health are zinc, copper, and selenium. They aid your skin in a variety of ways including acting as an antioxidant, helping product collagen and elastin, and reducing inflammatory skin conditions. These minerals can also be found in comprehensive multivitamins as well.

7. Probiotics supplement (10 to 15 billion CFU each daily)

While it’s ideal to obtain your probiotics from fermented foods and beverages like kombucha, there’s nothing wrong with taking a probiotic supplement. Probiotics control the development of the immune system, often shifting the immune response toward regulatory and anti-inflammatory conditions18. This ability to modify chronic inflammatory states means that probiotics may have a role in treating chronic inflammatory conditions19, ranging from inflammatory bowel disease to acne20, rosacea, eczema, and premature aging resulting from the ravages of UV radiation.

To ensure you’re getting plenty of probiotics, consuming probiotic-rich foods and beverages as well as taking a supplement is optimal. And to find the highest-quality probiotics, first go to a reputable store known for its natural-supplements selection.

Please do not stop taking the pharmaceuticals that your doctor or dermatologist has prescribed for you. These supplements do not replace drug regimens or sunscreen. They will work in tandem with any other protocol you are currently following. As a reminder, if you are taking oral antibiotics, schedule your probiotics so that you take them in the hours in between your doses of antibiotics.

Summary

Probiotics control the development of the immune system, often shifting the immune response toward regulatory and anti-inflammatory conditions. Some probiotics work best for different health goals, so here's a list of top picks broken down by the desired benefit.

The takeaway.

While many of these vitamins and minerals do come in one-off capsules, we understand not everyone wants to take a bunch of supplements every day. Beauty supplements blend together many of these skin-loving components into a one-stop-shop. We know it's not easy to figure out which supplement is best, so here's a list of some high-quality beauty supplements along with a guide to help you make the right choice.

Excerpted from The Beauty of Dirty Skin: The Surprising Science of Looking Radiant From the Inside Out. Copyright © 2018 by Whitney Bowe M.D. Used with permission of Little, Brown and Company, New York. All rights reserved.

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