10 Best The Ordinary Serums Of 2026
The Ordinary Serums — Reviews, Recommendations & Updated Buying Guide September 2026
The Ordinary Niacinamide 10% +
おすすめの理由
The Ordinary Hyaluronic Acid with
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THE ORDINARY The Abnormal Beauty
おすすめの理由
The Ordinary Ascorbic Acid 8% +
おすすめの理由
The Ordinary Buffet & Copper
おすすめの理由
The Ordinary Caffeine 3% + Escin
おすすめの理由
The Ordinary Mandelic Acid 10% +
おすすめの理由
The Ordinary Hyaluronic Acid 2% +
おすすめの理由
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10 Best The Ordinary Serums Of 2026
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The Ordinary Niacinamide 10% + Zinc 1% Serum for Face - Pore Reducer + USA Skin Care (30ml)
The Ordinary Hyaluronic Acid with 2% + B5 (30ml) and The Ordinary Niacinamide 10% + Zinc 1% (30ml) Bundle Face Care Set
THE ORDINARY The Abnormal Beauty Company Alpha Arbutin 2% + Hyaluronic Acid Serum, 30ml
The Ordinary Soothing & Barrier Support Serum, Redness-Reducing & Hydrating Solution with Centella Asiatica for Skin Barrier Repair, 30 ml
The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2%, 30 ml, Vitamin C
The Ordinary Buffet & Copper Peptides (1 percent Multi-Technology Peptide Serum)
The Ordinary Caffeine 3% + Escin 1% Face Serum, Energizing Serum to Tone and Tighten, 1 Fl Oz
The Ordinary Mandelic Acid 10% + HA, Gentle Exfoliating Serum for Clarity and Hydration, 30ml
The Ordinary Hyaluronic Acid 2% + B5 (with Ceramides), Multi-Depth Hydration Serum for Plumper, Smoother Skin, 60ml
購入ガイド: The Ordinary Serums
📋 目次
1Which The Ordinary serum should I pick for my skin concern?
The brand offers targeted options: Niacinamide for pore control and oil, Hyaluronic Acid for hydration, Vitamin C for brightening, and Salicylic Acid for acne. Identify your main concern first, then check the ingredient concentration to match your skin sensitivity level.
2What's the difference between The Ordinary's Vitamin C serums?
The key differences are stability and form—L-Ascorbic Acid is the most researched but unstable once opened, while Ascorbyl Glucoside is more stable but gentler. Choose based on your skin tolerance and how quickly you'll use the product.
3Can I use multiple The Ordinary serums together?
Yes, but avoid mixing actives that do similar jobs—don't combine different acids or vitamin C products on the same day. Pair hydrating serums (Hyaluronic Acid) with treatment serums, and always patch-test combinations first to avoid irritation.
4How long does a The Ordinary serum bottle last?
Most serums come in 30ml bottles and last 2-4 months with daily use, depending on how much you apply per use. A pea-sized amount usually covers the face, so don't use more than necessary to extend shelf life.
5What should I check for stability and shelf life before buying?
Check the ingredient list for unstable actives like L-Ascorbic Acid or Retinol, which degrade faster and need cool storage. Always buy from reputable retailers with proper storage conditions, and verify the manufacturing date if possible—these serums work best when fresh.
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