What is vitamin C in skincare?
Vitamin C is an antioxidant and an essential cofactor in collagen synthesis. In skincare it appears as L-ascorbic acid – the purest and best-studied form – or as more stable derivatives such as sodium ascorbyl phosphate, magnesium ascorbyl phosphate and tetrahexyldecyl ascorbate.
Skin cannot make its own vitamin C, and levels fall with age and UV exposure. Applied topically at the right pH and concentration, it penetrates the epidermis and replenishes what has been depleted.
What skin concerns does vitamin C treat?
It neutralises free radicals generated by UV and pollution, which makes it a genuine daytime defence layer under sunscreen rather than a replacement for it. It also inhibits tyrosinase, the enzyme behind melanin production, so it fades dark spots and evens overall tone.
Because it is required for collagen cross-linking, consistent use improves firmness and softens fine lines. Clinical work shows measurable benefit in photoaging and melasma over several months.
What ingredients are best paired with vitamin C?
Vitamin E and ferulic acid are the classic partners – together they stabilise L-ascorbic acid and multiply its photoprotective effect. Add hyaluronic acid to offset any dryness, and follow with broad-spectrum SPF every morning.
Niacinamide and vitamin C work well together in modern formulations, despite the old myth that they cancel out. Avoid layering it directly with strong AHAs, BHAs or benzoyl peroxide in the same step. Store it dark and airtight; oxidised vitamin C turns orange and stops working. Take our Skin Quiz.
What are wrinkles?
Wrinkles are permanent folds and creases in the skin. They begin as dynamic lines that appear only with expression, then set into static lines visible at rest once the underlying support structure can no longer push them back out.
They form first where skin is thin and movement is constant: crow’s feet, forehead lines, frown lines between the brows, and nasolabial folds. Deeper folds also reflect loss of fat and bone volume, not just skin change.
What causes wrinkles?
Internally, collagen and elastin production declines steadily from the mid-twenties and the dermal matrix thins, so skin loses the scaffolding that keeps it smooth.
Externally, ultraviolet radiation does most of the damage – it activates enzymes that break down collagen and degrades elastic fibres. Smoking, pollution, sugar-driven glycation, poor sleep, sleeping position and repeated facial movement all accelerate the process.
What ingredients are best for wrinkles?
Retinoids have the deepest evidence base for stimulating collagen and measurably reducing wrinkle depth over six to twelve months. Vitamin C supports synthesis while neutralising the free radicals that break it down, and peptides signal repair.
Round it out with hyaluronic acid and ceramides for hydration and barrier strength, niacinamide for elasticity and tone, and AHAs for surface renewal. Daily broad-spectrum SPF is the most effective anti-wrinkle product there is. Take our Skin Quiz.
