Because this serum is water-based and lightweight, it belongs early in the routine. A simple order is: cleanse, apply the serum to still-damp or dry skin, wait about a minute, then follow with moisturiser and sunscreen in the morning. If you use a toner or essence, apply it before the serum; if you use facial oils or heavy creams, apply them after.
When your routine includes vitamin C, many people use vitamin C in the morning and this serum at night, or apply vitamin C first and wait a few minutes before the serum. There is no single rule that works for every skin, so start with separate times of day if you want to be cautious. With retinoids or exfoliating acids, it is often practical to apply the serum in the morning and the stronger active in the evening, or to alternate nights. The serum can help provide hydration while the skin adjusts to stronger actives, but do not add several new products at once.
In the morning, always finish with a sunscreen, because a hydrating serum does not protect against UV exposure. If you are unsure how to fit this serum into an existing routine, or if you are receiving dermatological treatment, ask your specialist before adding new products. This product is not intended to diagnose or treat any medical condition.