Potassium Azeloyl Diglycinate

Potassium azeloyl diglycinate is a water-soluble azelaic-acid derivative used for brightening, sebum control, and anti-inflammatory support, typically around 2–10% in leave-on products, and is generally better tolerated than azelaic acid because it is not used at low pH. Clinical and real-world sensitive-skin use suggests a low but non-zero risk of stinging or dryness, especially on compromised barriers or when combined with other actives, so it fits a "gentle" rather than "very gentle" score for patient safety. Safety Notes: In commercial leave-on products (serums, lotions, tone-correcting/anti-blemish gels), potassium azeloyl diglycinate is observed at low levels around 0.1–0.5% when used as a supporting brightening/sebum-balancing adjunct, often alongside niacinamide and other humectants. Most mainstream formulations cluster around ~1–5% for noticeable oil-control/clarifying and tone-evening claims, while high-strength consumer-available specialty products (concentrated serums/ampoules) reach about 10%, which is near the upper end seen due to solubility, sensory tack, and pH/ionic compatibility constraints in leave-on systems; rinse-off cleansers typically sit toward the lower end of this range.

Suitability