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Antioxidants and summer skin.
Why UV, heat and long screen days stress your skin, and what antioxidants can and cannot do.
What sun does to skin
Sun does more than tan or burn. UV light creates unstable molecules called free radicals. Your skin has its own antioxidant defences, and strong sun can wear them down.
That imbalance is called oxidative stress. Over the years, it is one reason UV speeds up visible ageing. Close to the equator, the sun is strong all year, so summer skin is an everyday matter in Malaysia.
What antioxidants do
Antioxidants are molecules that neutralise free radicals. Your body makes some of them. You also get them from food, especially colourful fruit and vegetables.
Some antioxidants, such as vitamins C and E, are added to sunscreens. Some oral ingredients have been studied for skin too, mostly in small studies. The evidence is still early.
Sun protection comes first
Sunscreen is the proven first line. Dermatologists recommend a broad-spectrum sunscreen with SPF 30 or higher. Apply it before you go out, and reapply about every two hours.
Add shade, a hat and light clothing. Take extra care between 10am and 4pm. No tablet replaces any of this.
A simple routine
Keep it small and steady. Sunscreen every morning. Colour on your plate at most meals. Water through the day.
If you add a supplement, see it as one small part of the routine. Check the label, and talk to your doctor or pharmacist if you take medication.
FAQs
No. Sunscreen blocks UV at the surface. Antioxidants may help with oxidative stress inside skin cells. They do not stop UV from reaching your skin.
Visible light may add a little oxidative stress, but the research is still early. For most people, UV is the bigger concern.
References
- Skin photoageing and reactive oxygen species. PMC6973136, pmc.ncbi.nlm.nih.gov/articles/PMC6973136.
- American Academy of Dermatology sun protection guidance, as summarised in JAMA Dermatology.
- The Medical Letter on Drugs and Therapeutics. Sunscreens, including antioxidants added to sunscreen products.
This article is for information. It is not medical advice. Speak to your doctor about your own health.
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