Your skincare routine doesn’t take summer off - neither should your Vitamin C.

Every year, like clockwork, Vitamin C sales climb as the nights draw in. We reach for it the moment someone in the office starts sniffling, stock up in November, and quietly forget about it by April. Somewhere along the way, Vitamin C got filed in our minds as a cold-weather nutrient - something for fighting off the sniffles, not for sunny days at the beach.

But here’s the thing your skin already knows: summer is when your body faces some of its heaviest oxidative load of the year. Longer days outdoors, stronger UV, more sweat, more heat - all of it places real demand on the very nutrient most people have just put back in the cupboard.

If you wouldn’t skip sunscreen in July, it’s worth rethinking why you’d skip Vitamin C. Let’s make the case for keeping it in your routine all year round.

Why we treat Vitamin C as a winter-only nutrient

The association is understandable. Vitamin C is famous for one thing above all: immune support. And because we catch most of our colds in the cooler months, that’s when the bottles come out.

It’s true that Vitamin C contributes to the normal function of the immune system - that part isn’t a myth. But reducing Vitamin C to a winter cold remedy massively undersells what it actually does in the body. This is a nutrient involved in collagen formation, antioxidant defence, iron absorption, energy metabolism and the protection of cells from oxidative stress. Several of those jobs become more important, not less, when the sun is at its strongest.

In other words: winter is when we remember Vitamin C. Summer is arguably when our skin needs it most.

Sun exposure and oxidative stress: the free-radical problem

Spend a day in the sun and your skin is doing far more than turning a shade darker. UV radiation triggers the formation of free radicals - unstable molecules, often called reactive oxygen species, that can damage cells, proteins and DNA. This process is a major driver of what dermatologists call photo-ageing: the fine lines, loss of firmness and uneven tone that build up from sun exposure over time.

This is where Vitamin C earns its place. As one of the body’s key water-soluble antioxidants, Vitamin C helps protect cells from oxidative stress - neutralising free radicals before they can do their damage. Think of it as part of your skin’s internal defence team, working from the inside while your sunscreen works on the surface.

No supplement replaces SPF, and Vitamin C is not a sunscreen. But topical protection and internal antioxidant support are two different layers of the same strategy - and in summer, you want both.

Collagen, UV and keeping skin firm

If there’s one role that makes Vitamin C non-negotiable for summer, it’s collagen.

Collagen is the protein that gives skin its structure, firmness and bounce. Your body can’t produce normal collagen without Vitamin C - it’s an essential cofactor in the process. This is exactly why Vitamin C is one of the few nutrients with an authorised claim that it contributes to normal collagen formation for the normal function of the skin.

Here’s the summer angle: UV exposure accelerates the breakdown of existing collagen and interferes with the production of new collagen. So just as your skin is losing collagen faster under the summer sun, it also needs a steady supply of Vitamin C to keep making more. Running low at exactly the wrong time of year is how sun exposure quietly chips away at skin firmness over a season.

Keeping Vitamin C topped up through summer gives your skin the raw material it needs to keep its structure supported when demand is highest.

Brightness and an even tone

Summer is also prime season for uneven skin tone. Sun exposure stimulates melanin production - the pigment behind a tan, but also behind dark patches, sunspots and the stubborn marks many people notice creeping in from July onwards.

Vitamin C is a long-standing favourite in the skincare world for supporting a brighter, more even-looking complexion, thanks to its antioxidant activity and its role in healthy skin function. While most people only think of Vitamin C serums here, supporting your skin from within with a well-absorbed oral Vitamin C complements your topical routine rather than competing with it.

If a glowing, even summer complexion is the goal, Vitamin C deserves a spot on both sides of the bathroom mirror - in your serum and in your supplement routine.

After a day in the sun: supporting recovery from within

We’ve all had that evening after one too many hours outside - skin warm, tight and a little pink. While the smart move is always to avoid getting to that point, what you do afterwards matters too.

Recovery is fundamentally a repair process, and repair depends on the same things Vitamin C supports: collagen synthesis to rebuild skin structure, and antioxidant activity to manage the oxidative stress left behind by UV exposure. Topical aloe and aftersun lotions soothe the surface, but they don’t give your body the building blocks it needs underneath. That job is an inside one - and Vitamin C is central to it.

Pairing daily Vitamin C with good hydration through the summer months gives your skin steady support to recover from everyday sun exposure and keep doing its job day after day.

Heat, sweat and why summer raises your needs

There’s a quieter reason summer increases your demand for Vitamin C, and it has nothing to do with your skin.

When the temperature climbs, you sweat more. Sweating is how your body cools itself, but it also means losing fluid and electrolytes - and the more you perspire, the harder your body works to stay balanced. Heat, physical activity and sun exposure all add to your overall physiological load, and your antioxidant reserves get drawn down faster as a result.

Vitamin C also contributes to normal energy-yielding metabolism and to the reduction of tiredness and fatigue - both genuinely useful when summer heat leaves you feeling drained. Staying well hydrated and keeping your Vitamin C steady is a simple way to support your body through the season’s extra demands.

Topical vs internal: why absorption is everything

By now the obvious question is: serum or supplement? The honest answer is both, because they do different things. A topical Vitamin C serum works on the outer layers of the skin. An oral Vitamin C supports your whole body - skin included - from within, feeding collagen production, immune function and antioxidant defence everywhere at once.

The catch with oral Vitamin C is absorption. Standard Vitamin C can be poorly absorbed at higher doses, with much of it simply passing through. This is where delivery makes the difference. Our Liposomal Vitamin C uses a liposomal PureWay-C® formulation designed for higher bioavailability - meaning more of what you take is actually absorbed and put to use, with a smaller, gentler dose. For a nutrient you want working hard all summer, getting it where it needs to go matters.

Building your summer Vitamin C routine

So what does keeping Vitamin C in your summer routine actually look like? A few simple principles:

• Take it daily, not just when you feel run down. Vitamin C is water-soluble and isn’t stored long-term, so consistency beats the occasional big dose.

• Pair it with hydration. Water and Vitamin C work as a team through hot, sweaty months.

• Don’t drop your other sun-season antioxidants. Your skin isn’t the only thing facing UV - your eyes are too. Lutein Complex supports eye health and helps filter high-energy light during those long, bright days outdoors, making it a natural partner to Vitamin C in summer.

• Keep SPF non-negotiable. Supplements support your skin from the inside; they don’t replace sun protection on the outside.

If you’d rather not assemble it piece by piece, our Daily Defender Bundle brings everyday antioxidant and immune support together in one routine - a simple way to keep your defences topped up from the first warm day to the last.

The bottom line

Vitamin C was never meant to be a winter-only nutrient. Collagen support, antioxidant defence, recovery from sun exposure, and help through the heat and sweat of the season - these are summer jobs, and Vitamin C is built for all of them.

Your skincare routine doesn’t take summer off. Your sunscreen doesn’t. Your Vitamin C shouldn’t either.

Keep it daily, keep it absorbable, and let your skin head into the sunniest months of the year with its defences ready.