Advanced Defense Serum for Radiant, Protected Skin

That's the Vitamin C activating. It's normal and usually fades within minutes. If it feels too strong, apply every other day or layer over a light moisturizer.

Fresh serum is light yellow and clear. If it turns dark orange or brown, it's a sign of oxidation. Store tightly closed, away from heat and sunlight.

Most users notice brighter, smoother skin in 2–4 weeks of consistent morning use. For best protection, always pair it with sunscreen.

Avoid layering it with retinol, AHAs, BHAs, or niacinamide in the same routine to prevent irritation. You can alternate: Vitamin C in the morning, retinol at night.

Yes — start slowly. Use every other morning for the first week, then daily once your skin builds tolerance. Apply on clean, dry skin, and finish with moisturizer.