Most people begin to notice visible improvements in skin brightness and tone within 4 to 8 weeks of consistent daily use. Vitamin C serum works gradually, so the key is making it a regular part of your routine rather than expecting overnight changes. For best results, apply it every morning before your moisturiser and broad-spectrum SPF.

Yes, our Powerful-Strength Line-Reducing Concentrate is designed for daily use as part of your morning and evening skincare routine. Its stabilised 12.5% Vitamin C formula balances efficacy with tolerability, so it is suitable for everyday application. We recommend starting with once a day if your skin is new to vitamin C serum, then building up to twice daily as your skin adjusts.

Vitamin C serum delivers powerful antioxidant protection while helping to brighten skin, reduce the appearance of fine lines, and fade dark spots. It works by neutralising free radicals from environmental stressors like pollution and UV exposure, which can accelerate visible signs of ageing. We recommend pairing your vitamin C serum with a broad-spectrum SPF for maximum protection.

Yes, you can absolutely use vitamin C serum alongside retinol, though we recommend applying them at different times of day. Vitamin C works best in the morning to protect against environmental damage, while retinol is typically more effective in your evening routine. Our Retinol Skin-Renewing Daily Micro-Dose Serum pairs beautifully with a morning vitamin C application.

Apply your vitamin C serum before moisturiser, as serums have smaller molecules that penetrate best when applied directly to clean, slightly damp skin. After your serum has absorbed (typically 30 seconds to a minute), follow with your moisturiser to lock in hydration. This layering order ensures your vitamin C serum can work effectively without any barriers.

Some people may experience mild tingling when first introducing vitamin C serum to their routine, particularly with higher concentrations or if you have sensitive skin. This is typically normal and tends to subside as your skin adjusts over the first week or two. If irritation persists, we recommend starting with every other day application and gradually building up to daily use.