The Ordinary Euk 134 0.1%
The Ordinary EUK 134 0.1% is a high-potency antioxidant serum designed to combat oxidative stress and support skin health. EUK-134 is a unique, self-regenerating molecule that mimics the activity of two natural enzymes found in the skin: superoxide dismutase and catalase. This allows the formula to scavenge free radicals and neutralize environmental aggressors like pollution and UV damage throughout the day. The product features a minimalist ingredient list with a base of Propanediol, a plant-derived solvent that enhances ingredient penetration while acting as a humectant. Upon application, the texture feels slightly oily or warming, but it quickly sinks into the skin without leaving a greasy film. Because it is water-free, it remains stable and effective for longer periods. It is important to note that EUK-134 should not be used in the same routine as strong acids (like glycolic or lactic acid) or pure Vitamin C, as these can degrade the antioxidant molecule. It is an excellent choice for those seeking advanced environmental protection.
Our Analysis
Our analysis of The Ordinary EUK 134 0.1% reveals a Low Comedogenic Risk level, making it a standout choice for those concerned about pore health. We found zero flagged ingredients in this formulation. The primary carrier is Propanediol, which is generally well-tolerated and non-clogging for most skin types. Unlike many antioxidant oils that rely on heavy carriers, this water-free formula provides intensive protection without the use of esters, waxes, or oils known to trigger acne. It is a clean, science-backed option that prioritizes skin safety while delivering high-performance environmental defense.
Skin Type Recommendations
This serum is highly recommended for all skin types, particularly oily, combination, and acne-prone skin, due to its non-comedogenic profile. Sensitive skin types will benefit from the short ingredient list, which reduces the chance of reaction. It is a perfect daily treatment for urban dwellers needing protection against oxidative damage.
Flagged Ingredients
This product does not contain known high-risk comedogenic ingredients.
Want Deeper Analysis?
Run our MACR (Multi-Axis Comedogenic Risk) analysis to get a comprehensive 5-axis risk assessment. This AI-powered analysis evaluates ingredients for Plugging Risk, Barrier Damage, Fungal Acne Risk, Oxidation Risk, and real-world User Reports — giving you personalized scores for your skin type.
