Vitamin C Serum: Benefits, How to Use It, and Why 20% Matters
Posted by Englantina Hasankolli
Vitamin C is one of the most researched ingredients in skincare — and for good reason. As a potent antioxidant, it helps defend the skin against the daily free-radical damage caused by UV exposure and pollution, while supporting a brighter, more even complexion over time. Here is what it does and how to get the most from it.
What vitamin C does for your skin
A well-formulated vitamin C serum works on three fronts. It brightens by helping to interrupt excess melanin production, which is what drives dark spots and uneven tone. It protects by neutralising free radicals that break down collagen. And it supports firmness, because vitamin C is a cofactor your skin uses in its natural collagen-building process.
Why concentration matters
Not all vitamin C serums are equal. Lower concentrations can still offer antioxidant benefit, but a higher, stable concentration tends to deliver more visible results on pigmentation and radiance. Our AM Brightening C 20% is formulated at a professional 20% strength, designed to target pigmentation, boost radiance and help reverse visible signs of ageing.
How to use a vitamin C serum
Vitamin C is best applied in the morning, after cleansing and before sunscreen, so it can shield your skin through the day. For an extra hydration boost, layer it over our Hydrating Hyaluronic 97%. Always finish your morning routine with an SPF — antioxidants and sunscreen work best together.
A note on layering
If you also use niacinamide (vitamin B3), apply it at a different time of day to your vitamin C to keep both performing at their best. Vitamin C in the morning and active treatments such as retinol in the evening is a simple, effective rhythm.
Frequently asked questions
When will I see results? Radiance can improve within a few weeks, while changes in pigmentation typically take 8–12 weeks of consistent daily use.
Can I use vitamin C every day? Yes — once each morning is ideal. A light tingle on application is normal with active formulas.
Is it suitable for sensitive skin? Introduce it gradually and patch test first. Pair with a hydrating serum to support the skin barrier.
Ready to brighten? Explore the AM Brightening C 20% serum — Australian made and 100% vegan.
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