
Quasi • Mask
Quasi Bio-Collagen Face Mask Overnight, Niacinamide & Low Molecular Collagen, Firming & Smoothing, 4 Masks
Overnight glow-up mask with niacinamide and low molecular collagen. Turns clear in 1-2 hours as your skin absorbs every drop. Hydrates, refines the look of pores, firms and smooths all skin types. 4 masks.
Related guides: Dehydration · Enlarged Pores · Anti-Aging & Fine Lines
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Prices & ratings may change anytime on Amazon & Olive Young · check the retailer for current info. We may earn a commission at no cost to you.
Key ingredients
- Niacinamide
- Low Molecular Collagen
- Galactomyces
Pairs well with

Medicube
Medicube Collagen Night Wrapping Mask, Overnight Peel Off Mask 75ml
Prices & ratings as of Oct 17, 2026 · may change anytime on Amazon & Olive Young · check the retailer for current info

COSRX
COSRX Advanced Snail 96 Mucin Power Essence, Skin Repair Serum 100ml
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-10%ROUND LAB
ROUND LAB 1025 Dokdo Cleanser, Low pH Hydrating Face Wash 150ml
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Frequently asked
Is Quasi Bio-Collagen Face Mask Overnight, Niacinamide & Low Molecular Collagen, Firming & Smoothing, 4 Masks good for sensitive skin?
Yes — its formula is well tolerated by sensitive types. Patch-test first.
Where is it cheapest — Amazon or Olive Young?
Prices rotate with sales. Use the buttons above to compare current retailer prices; Olive Young often bundles minis and limited editions.
Our guides and picks are cosmetic curation for education only — not medical advice. Skin varies person to person: patch-test new products and see a dermatologist for persistent or concerning issues.