
The Ordinary Alpha Lipoic Acid 5%
The Ordinary Alpha Lipoic Acid 5% is a highly concentrated antioxidant serum designed to dramatically improve skin texture and tone. This potent formula features Thioctic Acid (Alpha Lipoic Acid), a powerful enzyme known for its ability to fight oxidative stress and signs of aging. Formulated in a water-free base of Propanediol, this treatment ensures maximum stability and potency of the active ingredient. Upon application, users may experience a slight warming sensation and a texture that feels momentarily oily before absorbing into the skin. Because it is exceptionally strong, it is intended for infrequent use—typically just two to three nights per week. This minimalist approach to skincare means the product avoids unnecessary fillers, fragrances, and oils, making it a targeted solution for those looking to combat dullness and unevenness without the risk of heavy residue. It is a standout choice for those seeking high-performance actives with a clean, simple ingredient list.
Our Analysis
Our analysis of The Ordinary Alpha Lipoic Acid 5% confirms a very low comedogenic risk profile. The formulation is incredibly minimalist, consisting primarily of Propanediol and Thioctic Acid. We found no flagged ingredients, meaning it is free from common pore-cloggers like isopropyl myristate, coconut derivatives, or heavy waxes. Because it lacks oils and silicones, it is highly unlikely to cause congestion or acne flares. This makes it an excellent antioxidant option for individuals who prioritize 'acne-safe' products while still targeting fine lines and skin radiance.
Skin Type Recommendations
This serum is best for oily, combination, and acne-prone skin due to its non-pore-clogging formula. It is excellent for those seeking anti-aging benefits without breaking out. However, due to the high concentration of Alpha Lipoic Acid, those with sensitive skin should patch test first to avoid potential irritation or redness.
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.








