Tiam My Signature Red C Serum

It is generally recommended to use Vitamin C serums in the morning and retinol at night to prevent potential skin irritation. If you have a highly tolerant complexion, you can layer them, but applying them in separate routines maximizes their individual antioxidant and anti-aging benefits.

Because it contains active Vitamin C derivatives, you should store this serum in a cool, dark place away from direct sunlight to prevent oxidation. Many users choose to keep it refrigerated to extend its shelf life and maximize its antioxidant efficacy.

Yes, this serum is formulated with stabilized Vitamin C derivatives like Ascorbyl Glucoside rather than pure L-ascorbic acid, making it notably gentler on sensitive skin. However, you should always perform a patch test 24 hours before applying it to your full face.

Yes, the Vitamin C in this formula actively inhibits melanin production, which helps fade post-inflammatory hyperpigmentation and brightens the overall complexion. While it will not treat textured acne scars, it is highly effective at reducing dark spots over time.