COSRX Pure Sodium Hyaluronic Acid 3% Serum

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.

Pros and cons

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