No.6 Deep Sleep Mask Serum - 50ml

Numbuzin - No.6 Deep Sleep Mask Serum - 50ml is a K-beauty face serum with a sleep-mask identity in the product name. It is best understood as a nighttime serum step for users who want something more targeted than a basic moisturizer but lighter than a separate sleeping pack.

Why It Stands Out

The No.6 naming and Deep Sleep Mask Serum format give this product a clear PM routine role. It is useful for shoppers who organize skincare by time of day and want a serum that feels aligned with evening recovery-focused care.

Best For

Best for dehydrated-feeling, tired-looking, or dull-looking skin routines where the evening step needs to feel more substantial. It suits K-beauty buyers who like numbered product lines and clear routine placement.

How to Use

Apply after toner in the evening, then follow with moisturizer if needed. Start with a moderate amount and avoid over-layering with several active products on the same night.

Benefits

• Sleep mask serum format is designed for PM routine use.
• 50ml size gives more volume than many standard serums.
• K-beauty face serum category fits layered skincare.
• Useful for routines that need a dedicated nighttime serum step.

Good to Know

The listing does not confirm specific actives, so avoid assuming ingredient claims beyond the title. Patch test before regular use.

Key Specs

• Brand: Numbuzin
• Product type: Mask serum
• Category: Face Serum, K-Beauty
• Routine fit: Nighttime serum step
• Size: 50ml