Cosrx RLE50653 Serum
- Serum
- 1.4 fl oz
- All
- Drop
- Better rated than 92%
- More reviewed than 77%
A hyaluronic acid serum aimed at combination, oily and sensitive skin, with a sizable 40 mL bottle for the category.
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How it ranks among the 293 serums we track
4.7★ across 1,243 Amazon ratings, Bayesian-smoothed toward the category average.
1,243 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
40,000,000+ 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 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
A hyaluronic acid drop serum in a 40 mL bottle, formulated for combination, oily and sensitive skin. Free of parabens and phthalates, though the listing notes both fragrance free and an aloe scent.
Cosrx built this serum around hyaluronic acid, a humectant that draws moisture into skin, and lists it as suited to combination, oily and sensitive skin types. The data lists it as fragrance free while also noting an aloe scent, so it is worth checking the packaging directly if scent matters to you.
- Hyaluronic acid drop serum
- 40 milliliter bottle
- Paraben and phthalate free
- Suited to oily, combination, sensitive skin
Who it's for
Good for those wanting a hydrating hyaluronic acid drop serum for oily, combination or sensitive skin. Less relevant for anyone chasing a heavily scented product experience.
Strengths and trade-offs
Drawn from this product's published specifications.
- Hyaluronic acid for hydration
- Paraben and phthalate free formula
- Sizable 40 mL bottle
- Suited to oily and sensitive skin
- Listing lists both fragrance free and scented
- No data on texture or absorption speed
Performance notes
Hyaluronic acid functions as a humectant, pulling moisture into the skin's surface layer, and the formula is free of parabens and phthalates while being positioned for combination, oily and sensitive skin types.
Specifications
| Brand | Cosrx |
|---|---|
| Model | RLE50653 |
| Dimensions & fit | |
| Size | 1.4 fl oz |
| Other details | |
| Skin Type | All, Combination, Oily, Sensitive |
| Skin Tone | All |
| Item Form | Drop |
| Scent | Aloe |
| Key Ingredients | Hyaluronic Acid, hyaluronic acid |
| Benefits | Hydrating |
| Features | Paraben Free |
| Addresses | Moisturizing,Soothing |
| Free Of | Fragrance Free, Paraben Free, Phthalate Free |
Other Cosrx serums
How it compares
This product against the closest alternatives we track in serums.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Cosrx RLE50653 SerumThis product | 4.7 / 5 | 1,243 | 4.5 / 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 RLE50653
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the key ingredient in Cosrx RLE50653 Serum?
Hyaluronic acid is listed as the key ingredient.
What size is the Cosrx RLE50653 Serum bottle?
It comes in a 40 milliliter bottle.
What skin types is Cosrx RLE50653 Serum formulated for?
The listing names all, combination, oily and sensitive skin types.