Propanediol, Thioctic Acid.
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You might have heard that Alpha Lipoic Acid (ALA) is an amazing antioxidant. You might even already know that it's soluble in both oil and water meaning it can be absorbed really well. And you might have also read that its antioxidant capacity is 40,000% stronger than networks of Vitamins C and E together. But there are many things you may not know about ALA: a) ALA can give you a glow overnight after a single application; b) ALA can oxidize both in water and in oil (yet most formulas of ALA contain one or both); c) ALA is not expensive despite some extremely expensive formulas on the market with ALA; d) ALA does not need to be used every day for amazing results. The Ordinary's Alpha Lipoic Acid 5% formula does not contain water, oil, silicones or alcohol and concentrates 5% pure ALA (the strongest concentration we know of by far) for a glow that starts after the first application. And the best part is that you would only use a few drops 2-3 times per week, meaning the 30ml bottle lasts for ages. ❤️🐒