• ONE THING [ONE THING] Niacinamide Glutathione Serum 50ml
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ONE THING

Niacinamide Glutathione Serum 50ml

Niacinamide Glutathione Serum 50ml

S$19.99
S$ S$19.99
Sale Sold out
Free shipping to Singapore over S$100 S$9.99 under that
No GST added; nothing to pay on arrival on orders up to S$340.
Posted from Korea, tracked — shipping details. No surprise fees from us.

All sales final. Damaged or wrong item: send a photo within 24 hours of delivery.
Ships tracked · free over S$100In the formula: Niacinamide · GlutathioneComplete the routine — Sets & Gifts ›
📦 Posted from Korea · Korea Post tracking number · Secure checkout

Singapore: Korea Post parcels are usually left at the door, not signed for. If yours goes missing, tell us within 24 hours of the delivery scan.

Finally, a serum that actually tackles dullness without feeling sticky or heavy on tropical skin.

Why You'll Love It

  • Niacinamide works overtime to minimize pores and even out your skin tone—perfect if you're dealing with post-breakout marks or uneven texture
  • Glutathione is basically your skin's antioxidant bodyguard, helping to brighten and protect against daily pollution and stress
  • Lightweight formula that absorbs fast—no waiting around in this humidity before you apply your moisturizer
  • ONE THING keeps their formulas simple and no-fuss, so you know exactly what's going into your routine

Key Ingredients

  • Niacinamide: Strengthens your skin barrier and keeps sebum in check without over-drying
  • Glutathione: A powerful antioxidant that brightens and protects your complexion from environmental damage

How to Use

Apply 2-3 drops to clean, slightly damp skin after toning. Gently pat in and let it sink for a minute before layering your moisturizer. Use morning and night for best results—consistency is key here.

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Shipping & duties

S$9.99 shipping to Singapore · free over S$100

Posted from Korea by Korea Post with a tracking number.

No surprise fees from us.

Rates for every destination

Returns

All sales final. Damaged or wrong item: send a photo within 24 hours of delivery.

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Complete your routine

One product per step, all in the same parcel from Korea.

  1. Cleanse
  2. Tone
  3. Treat this one
  4. Moisturize
  5. Protect