NUMBUZIN No.6 Deep Sleep Mask Serum (50ml)

The formula combines hydration, brightening, and soothing ingredients: Icelandic Glacier Water : mineral-rich hydration that helps restore radiance to dull, tired skin. 5 types of Hyaluronic Acid : delivers moisture at multiple skin layers for a plump, bouncy look. Niacinamide : brightens overall tone and helps fade dark spots and pigmentation over time. Sea Buckthorn : antioxidant-rich and nourishing, supports skin repair and a healthy glow. Centella Asiatica & Chamomile : soothing duo that calms redness and irritation, gentle for sensitive skin. Green Tea & Licorice Root : help protect against environmental stressors and support even tone. Panthenol & Allantoin : support the skin barrier and keep skin comfortable overnight.

Yes. In your evening routine, apply retinal first and let it absorb for a minute or two, then follow with this serum as your hydrating and soothing layer. Finish with a moisturiser if needed. If your skin is on the sensitive side, try alternating: retinal one night, this serum the next.

It's an evening-only product, used as your final step before bed. Normal/combination skin: cleanse, tone, optional lightweight serum, then apply this instead of a moisturiser. Dry skin: cleanse, tone, serum, moisturiser, then apply this on top to seal everything in. Start with 2 to 3 nights a week and increase frequency if your skin is happy with it.

Introduce it slowly, especially alongside tretinoin. Weeks 1 to 3: use on non-tret nights only. Cleanser, toner (optional), No.6, moisturiser. If skin stays settled and your prescriber is happy, try one tret night per week: cleanser, No.6, moisturiser, tretinoin last. If you notice extra stinging, redness, or peeling on tret nights, pull it back to non-tret nights only.