ONE THING Niacinamide 10% 150ml
ONE THING Niacinamide 10% 150ml
What It Is
A brightening, barrier-boosting toner powered by 10% niacinamide to refine skin tone, reduce excess oil, and lock in hydration.
What It Does
This multitasking essence-toner delivers a high concentration of niacinamide to visibly brighten dull skin, smooth uneven tone, and regulate sebum. It reinforces your skin barrier to reduce moisture loss while keeping blemishes and sensitivity at bay. Hypoallergenic, vegan, and made with only EWG green-grade ingredients, it’s gentle enough for daily use, with no tingling, no irritation.
Key Ingredients
- Niacinamide (10%) – Brightens, clears discolouration, and controls oil
- Purified Water – Hydrates and preps skin for next steps
- EWG Green Formula – Vegan, plant-derived, and non-irritating
Best For
Oily, combination, dull, or uneven skin; suitable for sensitive and acne-prone skin.
How to Use
- Toner: Sweep over skin with a cotton pad after cleansing
- Toner Mask: Soak cotton pads and apply for 10 minutes
- Mist: Decant into a spray bottle and use throughout the day
Why We Love It
It’s minimal, mighty, and endlessly versatile. The kind of formula that fits into any routine and delivers noticeable clarity fast.
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Shipping
Shipping
Shipping from South Korea
All orders are shipped directly from our warehouse in Gyeonggi-do, South Korea. This ensures you receive authentic, K-Beauty products directly from the source.
Processing & Delivery
Processing Time: Please allow 1–5 business days for us to prepare your order.
- Standard Shipping: 7–14 business days.
- Express Shipping: 5–7 business days.
- Platinum Shipping: 2–5 business days.
Return
Return
We want you to love your skincare. If you change your mind, we accept returns of unused, unopened items within 7 days of delivery. (Customer is responsible for return shipping).
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Discover more in our FAQ
How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1-5 business days. We prioritise processing in the order of Platinum, then Express, and then Standard shipping to get your items to you as quickly as possible.
Do you ship internationally?
Do you ship internationally?
Yes! We ship to over 30 countries worldwide. You can find all the details on destinations, rates, and estimated delivery times on our shipping policy page.
What is your return policy?
What is your return policy?
We accept returns within 7 days of delivery, provided the items are unused and in their original condition. For detailed instructions, please refer to our return policy or contact our support team.
Are your products authentic?
Are your products authentic?
Yes, absolutely. We understand that product authenticity is a major concern for K-Beauty shoppers.
Our promise to you is that every single product we stock is 100% authentic. Our team in South Korea works directly with the brands or their official, authorised distributors to source our entire collection.

