# 24-HR Synergy Duo

**Brand:** COSRX
**Category:** Health & Beauty > Personal Care > Personal Care Gift Sets & Kits
**Taxonomy ID:** hb-3-20
**Google Category ID:** 2915
**Price:** $45.20
**Compare At:** $50.00
**Price Segment:** mid-range
**In Stock:** Yes

## Description

24HR Protect your skin from Seasonal Change Here're our best Synergy Duo! AM/PM all day for enjoying our high effective #DermSkinCare. We heard your voice with skin problems, you and us will be GOOD Synergy for build the skin-barrier

## Specifications

### Ingredients & Nutrition

| Specification | Value |
|---|---|
| Key Ingredients | 3% Hyaluronic Acid |
| Key Ingredients | 23% Pure Vitamin C |
| Key Ingredients | 15% Niacinamide |
| Key Ingredients | 0.5% Pure Retinol |
| Key Ingredients | 0.1% Pure Retinol |
| Key Ingredients | Super Vitamin E + Panthenol |
| Key Ingredients | Acetyl Glucosamine + Zinc PCA |
| Key Ingredients | Amino Acids + Ceramide NP |

### Performance

| Specification | Value |
|---|---|
| Benefits | Firmness & Smooth |
| Benefits | Youthful-looking Skin |
| Benefits | Oil Control |
| Benefits | Minimize Pores & Sebum |
| Benefits | Hydrating |
| Benefits | Retain Moisture |
| Benefits | Improve skin condition |
| Benefits | Even skin tone |
| Skin Concern | skin problems |
| Skin Concern | skin-barrier |

### Dimensions & Fit

| Specification | Value |
|---|---|
| Volume | 20 mL / 0.67 fl. oz. |

### Usage Instructions

| Specification | Value |
|---|---|
| Frequency | AM/PM all day |
| Application Method | 24HR |

### Features & Construction

| Specification | Value |
|---|---|
| Product Form | [/cream/] |
| Product Form | [/serum/] |

## Variants

| Variant | Price | Available |
|---|---|---|
| Acne Free | $45.20 | Yes |
| Brightening | $42.50 | Yes |
| Increase Elasticity | $44.20 | Yes |
| Skin Firming | $44.20 | Yes |

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Data verified March 2026.

Source: https://cosrx.com/products/24hrs-synergy-duo