# The Niacinamide 15 Serum

**Brand:** COSRX
**Category:** Health & Beauty > Personal Care > Cosmetics > Serums & Ampoules
**Taxonomy ID:** hb-3-2-3
**Google Category ID:** 473
**Price:** $25.00
**Compare At:** $25.00
**Price Segment:** mid-range
**In Stock:** Yes

## Description

Total Breakout Care & Oil Control COSRX’s The Niacinamide 15 Serum is formulated with 15% niacinamide, paired with zinc PCA to deeply refine the appearance of pores, regulate excess sebum, and help reduce the look of post-acne marks. Ideal for oily, combination or blemish-prone skin, it delivers a clearer, smoother, more even complexion with continued use. * Non-comedogenic tested - doesn't clog the pores. Size : 20ml / 0.67 fl. oz

## Specifications

### Ingredients & Nutrition

| Specification | Value |
|---|---|
| Key Ingredients | 15% niacinamide |
| Key Ingredients | zinc PCA |
| Key Ingredients | Acetyl Glucosamine |

### Performance

| Specification | Value |
|---|---|
| Skin Type | oily, combination or blemish-prone skin |
| Skin Concern | Total Breakout Care & Oil Control |
| Benefits | refine the appearance of pores, regulate excess sebum, and help reduce the look of post-acne marks |
| Benefits | Visibly reduce acne scars |

### Certifications & Standards

| Specification | Value |
|---|---|
| Certification | Non-comedogenic tested |
| Certification | Clinically Proven suitable for acne prone skin use |

### Dimensions & Fit

| Specification | Value |
|---|---|
| Size | 20ml / 0.67 fl. oz |

## Variants

| Variant | Price | Available |
|---|---|---|
| Single | $25.00 | Yes |
| 2-Pack | $42.50 | Yes |

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Data verified March 2026.

Source: https://cosrx.com/products/the-niacinamide-15-serum