Cosrx RLE50820 Serum
- Serum
- All
- 1 fl oz
- All
- More reviewed than 94%
A reasonable addition to a skincare routine if you want a propolis serum for hydration and wrinkles, though it needs to be paired with separate sun protection.
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How it ranks among the 293 serums we track
4.5★ across 4,500 Amazon ratings, Bayesian-smoothed toward the category average.
4,500 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
73+ 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 293 serums we track - how the scorecard works · full serums 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
An unscented drop form serum from Cosrx built around propolis, sized at 30 milliliters. It's formulated for all skin types and tones, addressing hydration and the look of wrinkles.
Propolis is the standout here, a soothing, hydrating extract common in Korean skincare formulas. There's no SPF or exfoliating acid in the mix, so it functions best as an addition to a routine rather than a full anti-aging treatment on its own.
- Propolis key ingredient
- Drop item form
- Addresses hydrating and wrinkles
- Unscented, 30 mL, all skin types
Who it's for
Suits anyone wanting a propolis based hydrating serum aimed at fine lines. Less suited to someone looking for a serum with built in sun protection or acid exfoliation.
Strengths and trade-offs
Drawn from this product's published specifications.
- Propolis as the key hydrating ingredient
- Suits all skin types and tones
- Addresses both hydration and wrinkles
- No SPF included, needs separate sun protection
- No acid or retinol actives for stronger anti-aging effect
Performance notes
Propolis extract in drop form is meant to hydrate skin and soften the look of wrinkles, delivered unscented in a formula suited to all skin types.
Specifications
| Brand | Cosrx |
|---|---|
| Model | RLE50820 |
| Dimensions & fit | |
| Size | 1 fl oz |
| Other details | |
| Skin Type | All |
| Skin Tone | All |
| Item Form | Drop |
| Scent | Unscented |
| Key Ingredients | Propolis |
| Benefits | Rejuvenating |
| Features | Natural |
| Addresses | Hydrating,Wrinkles |
Other Cosrx serums
How it compares
This product against the closest alternatives we track in serums.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Cosrx RLE50820 SerumThis product | 4.5 / 5 | 4,500 | 4.2 / 5 |
| Glow Recipe 2404846 SerumGlow Recipe | 4.6 / 5 | 8,400 | 4.6 / 5 |
| mixsoon 8809732910159 Serummixsoon | 4.5 / 5 | 10,127 | 4.5 / 5 |
| Beauty of Joseon 8809738312728 SerumBeauty of Joseon | 4.5 / 5 | 9,461 | 4.5 / 5 |
| medicube 8809982768524 Serummedicube | 4.6 / 5 | 5,103 | 4.5 / 5 |
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Questions about the Cosrx RLE50820
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the main active ingredient in the Cosrx RLE50820 serum?
Propolis.
What does this serum target?
It's listed to address hydrating and wrinkles.
Is it scented?
No, it's unscented.