ONE THING
Single-ingredient essences and toners for customizable layering routines.
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ONE THING is the ultimate customization brand. Each product contains one key botanical extract, so you can mix and match based on your skin's daily needs. The quality is surprisingly high for the price, and the concept is perfect for skincare enthusiasts who want control over their routine. Artemisia and Centella are standouts.
Strengths
- + Single-ingredient concept allows true customization
- + Exceptionally affordable for the quality
- + Large bottles with generous amounts
- + Clean, transparent formulations
Weaknesses
- − Requires skincare knowledge to build a routine
- − Packaging is very basic
- − No complex multi-active products
- − Some extracts are more effective than others
The ONE THING Story
ONE THING launched in 2019 with a brilliantly simple concept: one product, one ingredient. In a market full of 30-ingredient serums making impossible claims, ONE THING strips everything back to single botanical extracts. Their Artemisia Extract, Centella Asiatica Extract, and Galactomyces Ferment Filtrate are all bestsellers. The brand appeals to the growing "skintellectual" community — people who want to understand exactly what they're putting on their skin and why. At under $15 for most products, it's also one of the best values in K-beauty.
Shop ONE THING by skin type
Curated picks from ONE THING's lineup, ranked for each skin type.
All ONE THING Products
7 products reviewed and rated.
Artemisia Capillaris Extract
One ingredient. 100% Artemisia Capillaris Extract. Pure mugwort that calms redness, soothes acne, and reduces inflammation. Layer it, use it as a toner, soak a sheet mask in it — the single-ingredient format means infinite versatility. The best $13 you can spend on calming skincare.
Galactomyces Ferment Filtrate
One Thing's single-ingredient galactomyces — the budget-tier dupe for SK-II Pitera that has Reddit's K-beauty crowd in a chokehold.
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