Serums
Concentrated actives that target a specific concern — dark spots, dullness, breakouts or dehydration. Serums are where your routine does its real work, layered between toner and moisturiser.
How to choose: vitamin C for brightening and dark spots (mornings), niacinamide for oil and blemishes, hyaluronic acid for hydration, azelaic acid for breakouts and even tone. Introduce one new active at a time, and always wear SPF when using brightening serums.