Here’s the honest secret of vitamin C: the expensive bottles oxidise on your shelf exactly as fast as the affordable ones. What matters is a sensible formula, an opaque air-restricted bottle, and replacing it every few months — which is precisely why we recommend effective, affordable options you’ll actually repurchase. (Check what it pairs with in the ingredient checker — morning vitamin C + SPF is the classic combination.)
A well-built formula pairing vitamin C with niacinamide, from a lab with real formulation muscle. Light texture, layers under SPF without pilling, and visible brightening on dull skin within a few weeks. The one to start with.
£9.30£8.72–£12.98 since 6 Sep
A straightforward 10% formula for skin already comfortable with actives — a touch more potent, still gentle enough for most, and transparent about exactly what’s in the bottle.
Vitamin C with centella for skin that likes its brightening served calm — a solid daily serum at a repurchase-friendly price.
Morning, on clean skin, under moisturiser and always under SPF — vitamin C and sunscreen are a team, each making the other work better. If the serum turns dark orange or smells metallic, it’s oxidised: bin it and replace. That replacement rhythm is the real argument for affordable bottles.
Generally no — stability and packaging matter more than price, and all vitamin C oxidises within months of opening. An affordable, well-formulated serum you replace regularly beats a costly one you ration.
Morning, on clean skin, under moisturiser and SPF. Vitamin C boosts your sunscreen's protection against UV-generated free radicals — they're designed to work together.
Colour and smell: a serum that's turned deep orange/brown or smells metallic has oxidised and lost effectiveness. Expect a 3–6 month usable life after opening.
Yes — the modern approach is vitamin C in the morning, retinoid at night, so they never compete. Same-time layering is unnecessary and raises irritation risk.
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