Best Supplements for Skin Health: Vitamin C, E, Omega-3 and Probiotics
- , by SANUSq Research team
- 14 min reading time
Dull, dry skin? Wrinkles and fine lines? Uneven skin tone and dark spots? With age, these tell-tale signs of ageing are normal and expected.
Over the years your skin goes through a number of changes. You don’t make enough collagen and elastin, which means your skin is not as firm and elastic as it used to be. Your body makes its own antioxidants that protect your cells — including your skin cells — from the oxidative damage caused by UV exposure and pollution, but this capacity takes a hit once you enter your twenties and thirties. Your sebaceous glands also produce less oil, which leaves skin looking dry and less supple.
Years of UV exposure and declining levels of natural oils, collagen, elastin and internal antioxidants show up as the familiar signs of skin ageing: fine lines, dryness, wrinkles and sunspots. There is little you can do to stop these signs from appearing altogether.
What you can do is control the outside factors that make your skin age faster than it should. Poor nutrition, sugar, chronic stress, drinking, smoking and inadequate sleep are all detrimental to skin health and appearance, driving premature ageing. They trigger inflammation and break down collagen and elastin while slowing the renewal of skin cells. Your skin then struggles to bounce back and hold moisture, giving rise to fine lines, wrinkles and dryness — with dark spots and pigmentation issues not far behind.
So how do you protect your skin from premature ageing, and give it the lift it needs to stay healthy, nourished and glowing for longer?
Daily cleansing, a good moisturiser and sunscreen, cutting refined sugar and sleeping well all go a long way. But what you eat makes an enormous difference to keeping skin healthy from the inside out. A clean, well-balanced diet supplies the vitamins, minerals and antioxidants your skin needs to stay radiant — and that often means supporting it with antioxidant and collagen-building nutrients that are otherwise difficult to obtain from diet alone.
Below are some of the top supplements for skin health. Better still, the benefits of each reach well beyond healthy, beautiful skin.
1. Vitamin C
Vitamin C, best known for its role in immunity, is also one of the best supplements for your skin.
It is a powerful antioxidant that protects skin from the free radicals formed during exposure to UV rays and chemicals. Daily exposure to smoking, pollution, UV and other toxins depletes the body’s vitamin C, leaving skin more vulnerable to oxidative damage.
Vitamin C is also essential for making collagen. It acts as a co-factor in collagen synthesis and helps with its repair and maintenance. Over the long term, UV exposure triggers enzymes that degrade collagen and other structural proteins in the skin, accelerating the ageing that shows up as fine lines, wrinkles and pigmentation (Pullar et al., 2017).
Vitamin C in skin health
- Supports the healthy production and repair of collagen, keeping skin smooth and firm
- Protects against UV damage and helps prevent the premature formation of wrinkles and fine lines
- Reduces the severity of sunburn
- Lowers inflammation, which can help with acne and rosacea
- Aids wound healing
You can’t make your own vitamin C, so you have to get it from food and supplements. For skin health and sun protection, vitamin C supplements work best alongside vitamin E, another potent antioxidant.
Vitamin C also does plenty beyond skincare (Carr & Maggini, 2017):
- Boosts immunity and helps fight infection
- Improves iron absorption
- Supports heart health and helps reduce the risk of atherosclerosis
- Helps keep eyes healthy and lowers the risk of cataracts and macular degeneration
- Supports joints and bone health
- Helps the body cope with stress
- Offers some protection against radiation exposure
2. Vitamin E
What do most anti-ageing beauty products have in common? They nearly all contain vitamin E — a fat-soluble, essential vitamin. In fact, vitamin E is not a single molecule but a family of naturally occurring compounds with antioxidant properties.
Your skin has its own arsenal of antioxidants that fight free radicals and oxidative damage, and vitamin E (as alpha-tocopherol) is one of the most abundant. It sits ready in your tissues to protect the lipids in your skin cells from oxidative damage caused by chemicals, smoking, pollution and the sun.
Vitamin E also absorbs UV light, and research shows that, used together with vitamin C, it lengthens the time it takes skin to burn. That is no reason to ditch your sunscreen — it simply means that raising your skin’s antioxidant content alongside using sunscreen gives better protection against sun damage (Keen & Hassan, 2016).
The evidence reaches into clinical practice, too. A randomised, double-blind, placebo-controlled trial gave 70 people with mild-to-moderate atopic dermatitis either 400 IU of oral vitamin E daily or a placebo for four months. The vitamin E group saw a significantly greater improvement in disease severity (SCORAD score) along with less itching, and the researchers reported it was well tolerated at that dose (Jaffary et al., 2015).
You can get vitamin E from foods such as almonds, avocado, sunflower seeds, spinach, mustard greens and fish. Wheatgerm oil is one of the richest sources, and cold-pressed oils such as argan, coconut and olive oil are good options too. Even so, you may benefit from supplemental or topical vitamin E to support skin function and repair, especially since skin levels tend to fall with age — and even brief sun exposure can deplete the vitamin E and other antioxidants your skin holds.
Vitamin E in skin health
- Helps protect against sun-induced skin damage
- Supports collagen production
- Helps reduce the appearance of fine lines and wrinkles
- Helps guard against age spots, dryness and flakiness
- Lowers inflammation
- Supports blood circulation in the skin
- Supports wound healing
Other health benefits of vitamin E
- Helps reduce the risk of blood clots and coronary heart disease
- Supports immune function
- Supports eye health and may reduce the risk of age-related macular degeneration
- Helps keep hair strong and lustrous
- Supports hormonal balance
3. Omega-3 fatty acids
Omega-3 fatty acids are among the best anti-inflammatory nutrients available and are well known for supporting heart and brain health. They also keep skin healthy, moist and resilient. You’ll find them in walnuts, flaxseeds and oily fish (salmon, mackerel, sardines), as well as fish oil supplements. Sacha inchi oil is another excellent — if lesser-known — source of omega-3s and omega-6s, especially for vegetarians.
A healthy balance of omega-3 and omega-6 fatty acids matters for both the function and appearance of skin. These fats are a key component of cell membranes, including those of your skin cells, giving them structure and integrity. Omega-3s also support the skin’s barrier function — locking in moisture, helping to regulate oil production and keeping irritants out.
They further promote the production of enzymes and signalling molecules that calm inflammation, which is why omega-3s can be a valuable tool for soothing red, angry, inflamed skin. If you aren’t getting enough, skin tends to lose moisture and elasticity, becoming rough, dry and more prone to irritation and flare-ups.
The skin-specific evidence is encouraging: long-chain omega-3s, particularly EPA, appear to reduce UV-induced inflammation in human skin and may offer some protection against photoageing and photo-damage when combined with standard topical sunscreen measures (Pilkington et al., 2011).
Omega-3 fatty acids in skin health
- Keep skin moisturised and nourished from within
- Soothe inflammation and help calm red, itchy skin and frequent flare-ups
- Help regulate oil production, easing both dryness and breakouts
- Help protect skin cells from sun-triggered damage and inflammation
- Strengthen cell membranes and support a protective barrier against toxins and free radicals
Other health benefits of omega-3 fatty acids
- Significantly reduce the risk of heart disease
- Support brain health and function
- May offer some protection against dementia
- Support eye health and reduce the risk of macular degeneration
- May help reduce ADHD symptoms in children
4. Probiotics
Looking for clear, radiant, healthy skin? Start with your gut.
Probiotics are the beneficial bacteria in your gut. They keep harmful bacteria in check, help keep your immune system in good shape and assist with the absorption of certain nutrients. By maintaining a healthy gut flora, probiotics support whole-body wellbeing — and skin health is no exception.
An imbalance in gut flora can lead to a leaky gut, where partially digested food particles, toxins and unfriendly bacteria pass into the bloodstream. This restricts the absorption of essential vitamins and minerals, allows toxins to build up in cells and tissues, and ultimately drives systemic inflammation. Fatigue, low mood, autoimmune conditions, inflammatory bowel disease, headaches and thyroid disorders have all been linked to poor gut health and inflammation.
There is a clear connection between an unhealthy gut and inflamed skin. A growing body of research describes a “gut-skin axis” in which the gut microbiome helps regulate skin conditions such as acne, rosacea, eczema and psoriasis (Salem et al., 2018). Supporting that balance with probiotics has been associated with benefits for immune regulation, acne and photoageing (Kober & Bowe, 2015). Kefir, kombucha, sauerkraut, miso and yoghurt are great fermented choices, but it is hard to get all the probiotics you need from food alone, so a good-quality supplement from a reputable brand can help.
Probiotics in skin health
- Help reduce inflammation and flare-ups in conditions such as psoriasis, acne, rosacea and eczema
- Help keep skin hydrated
- Help protect against skin damage caused by free radicals
- Support the skin’s defence against infection
Other health benefits of probiotics
- Support digestion
- Improve absorption of nutrients from food
- Help clear toxins
- Support immunity
- Keep unfriendly bacteria, viruses and fungi in check
- Help prevent and manage digestive complaints such as diarrhoea, constipation and irritable bowel syndrome
It helps to know what throws gut flora off balance. Sugar, processed foods and long-term antibiotic use are common culprits, and stress and poor sleep can tip the balance between good and bad bacteria too.
Last but not least: stay hydrated and cut the sugar
Drinking enough water matters for your overall wellbeing, including skin health and function. Dry, flaky skin is often a sign of dehydration. Beyond hydration itself, water supports digestion, helps flush toxins from your cells and improves circulation.
Coffee and tea don’t count, but you can top up your fluids with plenty of fresh fruit and vegetables — cucumber and watermelon, for example. These foods also deliver vitamins, minerals and antioxidants that nourish skin from within and support collagen, helping you keep supple skin that is less prone to damage and quicker to repair.
If there is one food that damages skin like no other, it is sugar. Why is it so bad? Sugar feeds unfriendly gut bacteria, increases inflammation and drives the formation of advanced glycation end products, or AGEs. When sugar binds to important proteins it alters their structure and function, producing these AGEs — which cross-link and damage collagen, a process accelerated further by UV exposure (Danby, 2010).
Eating well and following a good skincare routine are the foundations of healthy skin. Sometimes, though, you need a little extra help — and that is where these supplements can play their part.
Always consider speaking with your healthcare professional before starting any dietary supplement, particularly if you are combining two or more antioxidant supplements, as they may interact with medication you are already taking.
Frequently asked questions
Can supplements really improve your skin, or is it all about what you put on it?
Topical products work at the surface — they protect and hydrate the outer layer. But much of what drives skin ageing happens inside the cell: collagen production, antioxidant defence and barrier integrity. Nutrients such as vitamin C, vitamin E, omega-3s and a balanced gut support skin from within, complementing a good topical routine rather than replacing it.
How long does it take to see results from skin-supporting supplements?
Skin renews over weeks, not days. Collagen turnover and cell renewal are gradual, so it is reasonable to give a consistent routine at least 8 to 12 weeks before judging the effect. Consistency, hydration and an overall healthy diet matter more than any single product.
Is it safe to take several of these supplements together?
Many of these nutrients are commonly combined — vitamin C with vitamin E, for example — and a balanced approach is generally well tolerated. That said, combining two or more antioxidant supplements, or adding them alongside existing medication, is best discussed with your healthcare professional first, as interactions are possible.
References
- Pullar JM, Carr AC, Vissers MCM. The roles of vitamin C in skin health. Nutrients. 2017;9(8):866.
- Carr AC, Maggini S. Vitamin C and immune function. Nutrients. 2017;9(11):1211.
- Keen MA, Hassan I. Vitamin E in dermatology. Indian Dermatol Online J. 2016;7(4):311–315.
- Jaffary F, Faghihi G, Mokhtarian A, Hosseini SM. Effects of oral vitamin E on treatment of atopic dermatitis: a randomized controlled trial. J Res Med Sci. 2015;20(11):1053–1057.
- Pilkington SM, Watson RE, Nicolaou A, Rhodes LE. Omega-3 polyunsaturated fatty acids: photoprotective macronutrients. Exp Dermatol. 2011;20(7):537–543.
- Salem I, Ramser A, Isham N, Ghannoum MA. The gut microbiome as a major regulator of the gut-skin axis. Front Microbiol. 2018;9:1459.
- Kober MM, Bowe WP. The effect of probiotics on immune regulation, acne, and photoaging. Int J Womens Dermatol. 2015;1(2):85–89.
- Danby FW. Nutrition and aging skin: sugar and glycation. Clin Dermatol. 2010;28(4):409–411.
The health information contained in this article is for educational purposes only. Consult your healthcare professional before making any medical decisions.
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