Vitamin C serum
Form, timing and compatible routines — without overstated efficacy claims.
Reviewed 2026-07-17 · Roccato Studio
In a routine
Vitamin C serums are often used in the morning before moisturiser and SPF. Stability and form vary by product — follow the label.
Combining
Do not blindly combine with strong acids or retinol if your skin is reactive. Build slowly and stop if irritation occurs.
This page is cosmetic guidance, not medical advice. See a clinician for skin concerns.