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Cosrx

COSRX ABC Daily Toner 150 ml

  • Item Volume: 5.1 fl oz
  • Skin Type: Sensitive
  • Active Ingredients: Betaine,glycolic Acid,niacinamide,sodium Lactate,vitamin C
  • Product Benefits: Exfoliation

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A daily exfoliating toner with a multi ingredient acid and vitamin C blend, worth trying if your skin already handles light acids without irritation.

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ASIN: B089PTWZCSCategory: Facial Toners

Overview

COSRX's ABC Daily Toner is a 150ml (5.07 fl oz) exfoliating toner built around a five ingredient active blend of betaine, glycolic acid, niacinamide, sodium lactate and vitamin C, aimed at sensitive skin for daily use.

The name nods to the acid and vitamin C combination in the formula, and COSRX pairs a low strength glycolic acid with niacinamide and sodium lactate rather than leaning on a single harsh exfoliant. It ranks inside the top 300 facial toners on Amazon and carries a high recent purchase volume, which points to it being a repeat buy for people already following a Korean skincare routine.

  • 150ml / 5.07 fl oz toner
  • Glycolic acid, niacinamide, vitamin C blend
  • Formulated for sensitive skin
  • Ranked in top 300 facial toners

Who it's for

Fits people who already tolerate light chemical exfoliation and want a toner step that combines exfoliating acids with a brightening ingredient. Not the first product to reach for if your skin reacts to glycolic acid or you have not patch tested acids before.

Pros and cons

Pros
  • Combines exfoliating acid with niacinamide and vitamin C
  • 150ml bottle sized for daily use
  • High recent purchase volume among toners
Cons
  • Glycolic acid may not suit reactive skin despite the sensitive skin label
  • No SPF, so daytime acid use needs separate sun protection

Performance notes

Glycolic acid provides the exfoliating action, niacinamide and vitamin C are included for brightening support, and betaine with sodium lactate work as humectants to offset some of the drying effect exfoliating acids can have. The drop item form and 150ml bottle suit a cotton pad or hand application as a toning step.

Specifications

BrandCosrx
Dimensions & fit
Item Weight0.25 Grams
Capacity & performance
Item Volume5.1 fl oz
Construction & materials
Material FeaturesNatural
Included components
Unit Count5.1 fl oz
Other details
Skin TypeSensitive
Active IngredientsBetaine,glycolic Acid,niacinamide,sodium Lactate,vitamin C
Product BenefitsExfoliation
Item FormDrop
Scent NameFresh
Number Of Items1
AsinB089PTWZCS
Customer Reviews{'ratings_count': '639', 'stars': '4.6'}
Best Sellers Rank#46,299 In Beauty & Personal Care (See Top 100 In Beauty & Personal Care) #293 In Facial Toners & Astringents
ManufacturerCOREA COSMEDICAL CENTER Co., Ltd
Manufacturer Part NumberRLE51902
Recommended Uses For ProductToning, Exfoliating, Provides Vitamin
Model NumberRLE51902
Global Trade Identification Number08809598451902

Frequently asked questions

What are the main active ingredients in the COSRX ABC Daily Toner?

Betaine, glycolic acid, niacinamide, sodium lactate and vitamin C.

How much product comes in the bottle?

150 milliliters, listed as 5.07 fluid ounces.

Is it meant for daily use?

Yes, it is designed as a daily toning and exfoliating step.