Cosrx SC40TR04 Serum
- Serum
- All
- 3.4 fl oz
- All
- More reviewed than 81%
A large-format, fragrance-free hydrating serum, useful mainly if the lack of named active ingredients isn't a dealbreaker.
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How it ranks among the 293 serums we track
4.3★ across 1,700 Amazon ratings, Bayesian-smoothed toward the category average.
1,700 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand 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
This Cosrx serum, model SC40TR04, ships in an unusually large 100ml dropper bottle for a facial serum, positioned around hydration and addressing fine lines. It's fragrance-free and listed as suitable for all skin types and tones.
Most facial serums come in 30 to 50ml bottles, so this 100ml size stands out and should last well beyond a typical single bottle. The listing labels it rejuvenating and ties it to hydration and wrinkles, but doesn't break out specific active ingredients or their concentrations, so buyers wanting a named active like retinol or a specific peptide should check the full ingredient panel.
- 100ml dropper serum
- Fragrance-free, unscented formula
- Targets hydration and wrinkles
- Suitable for all skin types
Who it's for
Suits anyone wanting a larger-volume, fragrance-free serum for daily hydration without committing to a specific named active. Less useful for buyers who want a serum built around one clearly stated ingredient at a known concentration.
Strengths and trade-offs
Drawn from this product's published specifications.
- 100ml bottle is larger than most facial serums
- Fragrance-free and unscented
- Dropper application for portion control
- Listed for all skin types and tones
- No specific active ingredients or concentrations are listed
- Anti-wrinkle and rejuvenating claims aren't backed by named ingredient data here
Performance notes
The dropper format allows for controlled, drop-by-drop application rather than pouring or pumping, which helps limit product waste on a bottle this size. The fragrance-free, unscented formula is aimed at reducing irritation risk for sensitive users, while the hydration and wrinkle claims aren't tied to a specific named ingredient in the spec data.
Specifications
| Brand | Cosrx |
|---|---|
| Model | SC40TR04 |
| Dimensions & fit | |
| Size | 3.4 fl oz |
| Other details | |
| Skin Type | All |
| Skin Tone | All |
| Item Form | Drop |
| Scent | Unscented |
| Benefits | Rejuvenating |
| Features | Natural |
| Addresses | Hydrating,Wrinkles |
| Free Of | Fragrance-free |
Other Cosrx serums
How it compares
This product against the closest alternatives we track in serums.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Cosrx SC40TR04 SerumThis product | 4.3 / 5 | 1,700 | 3.8 / 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 |
Similar serums from other brands
Questions about the Cosrx SC40TR04
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How large is the Cosrx SC40TR04 serum bottle?
100 milliliters, notably larger than the 30 to 50ml sizes typical of most facial serums.
Is this Cosrx serum scented?
No, it's listed as unscented and fragrance-free.
What does the serum target?
The listing markets it for hydration and addressing wrinkles, without naming a specific active ingredient.