COSRX ABC Daily Toner
- Toner
- 5.1 fl oz
- Sensitive
- 1
- More reviewed than 69%
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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How it ranks among the 452 toners we track
4.6★ across 639 Amazon ratings, Bayesian-smoothed toward the category average.
639 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
50,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 452 toners we track - how the scorecard works · full toners data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
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.
Strengths and trade-offs
Drawn from this product's published specifications.
- Combines exfoliating acid with niacinamide and vitamin C
- 150ml bottle sized for daily use
- High recent purchase volume among toners
- 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
| Brand | Cosrx |
|---|---|
| Model | RLE51902 |
| Dimensions & fit | |
| Item Weight | 0 ounces |
| Capacity & performance | |
| Item Volume | 5.1 fl oz |
| Construction & materials | |
| Material Features | Natural |
| Included components | |
| Unit Count | 5.1 fl oz |
| Other details | |
| Skin Type | Sensitive |
| Number Of Items | 1 |
| Scent Name | Fresh |
| Manufacturer Part Number | RLE51902 |
| Active Ingredients | betaine,glycolic acid,niacinamide,sodium lactate,vitamin c |
| Recommended Uses For Product | Toning, Exfoliating, Provides Vitamin |
| Asin | B089PTWZCS |
| Model Number | RLE51902 |
| 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 |
| Global Trade Identification Number | 08809598451902 |
| Manufacturer | COREA COSMEDICAL CENTER Co., Ltd |
| Product Benefits | Exfoliation |
| Item Form | Drop |
Other Cosrx toners
How it compares
This product against the closest alternatives we track in toners.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| COSRX ABC Daily TonerThis product | 4.6 / 5 | 639 | 4.4 / 5 |
| Glow Recipe PHA + BHA Face TonerGlow Recipe | 4.6 / 5 | 8,776 | 4.6 / 5 |
| Beauty of Joseon Ginseng Essence Water Hydrating Face Toner for DryBeauty of Joseon | 4.6 / 5 | 6,556 | 4.6 / 5 |
| T.N. Dickinson's Witch Hazel Alcohol Free Moisturizing AstringentT.N. Dickinson's | 4.8 / 5 | 8,044 | 4.4 / 5 |
| THAYERS Milky Face Toner Skin Care with Snow Mushroom Tremella and Hyaluronic Acid | 4.7 / 5 | 6,405 | 4.4 / 5 |
Similar toners from other brands
Questions about the Cosrx RLE51902
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
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.