Magnesium Palmitoyl Glutamate

Magnesium Palmitoyl Glutamate is a fatty-acid amino-acid salt used mainly as a mild surfactant/emulsifier and skin-conditioning agent, typically at low concentrations in leave-on and rinse-off products. Available safety/patch-test experience for glutamate-based mild surfactants and fatty-acid salts suggests low inherent irritancy, with occasional stinging possible in highly compromised barriers (e.g., eczema flares) especially in cleanser systems. Given its generally good tolerability but non-zero risk in reactive skin when combined with other surfactants, a very gentle score is most consistent with patient-safety prioritization. Safety Notes: Magnesium Palmitoyl Glutamate is used commercially primarily as a lipid/amino-acid derived skin-conditioning/emollient and mild surfactant/texture aid, often appearing at low levels (~0.05–0.3%) in leave-on creams/lotions and some cleansers to support feel and formulation stability. In richer barrier creams, specialty moisturizers, and some anhydrous/lamellar systems it is marketed and used at higher levels around 1–2%, with the upper end of observed OTC consumer products reaching ~3% where it functions more materially as a structurant/skin-feel modifier; levels above this are uncommon due to diminishing sensory benefits and increased risk of waxy drag/instability, especially in leave-on emulsions.