Is Sodium Stearoyl Glutamate fungal acne safe?
Sodium Stearoyl Glutamate is best used with caution for fungal-acne-prone skin. Stearoyl (C18) amino-acid surfactant. The amide bond resists lipase cleavage, which is why this database clears Sodium Cocoyl Isethionate as bound, yet flags Sodium Lauroyl Sarcosinate. That family is not internally consistent, so caution rather than a confident call.
Why this verdict
Stearoyl (C18) amino-acid surfactant. The amide bond resists lipase cleavage, which is why this database clears Sodium Cocoyl Isethionate as bound, yet flags Sodium Lauroyl Sarcosinate. That family is not internally consistent, so caution rather than a confident call.
Fungal acne, properly called malassezia folliculitis, is driven by a yeast that feeds on fatty acids in roughly the C11 to C24 range. An ingredient is a concern when it can supply usable fatty acids in that window, and it is generally fine when it cannot. Chain length and ethoxylation can both change the verdict, which is why the chemical family alone does not decide it. See the full trigger list and how we assess ingredients for the reasoning and sources.
Safer swaps
Fungal-acne-safe alternatives in the same category (Ester):
Frequently asked questions
Is Sodium Stearoyl Glutamate safe for fungal acne?
Sodium Stearoyl Glutamate is best used with caution for fungal-acne-prone skin. Stearoyl (C18) amino-acid surfactant. The amide bond resists lipase cleavage, which is why this database clears Sodium Cocoyl Isethionate as bound, yet flags Sodium Lauroyl Sarcosinate. That family is not internally consistent, so caution rather than a confident call. This is informational only and not a diagnosis; suitability varies by person and formulation.
Why does Sodium Stearoyl Glutamate trigger fungal acne?
Stearoyl (C18) amino-acid surfactant. The amide bond resists lipase cleavage, which is why this database clears Sodium Cocoyl Isethionate as bound, yet flags Sodium Lauroyl Sarcosinate. That family is not internally consistent, so caution rather than a confident call. Fungal acne (malassezia folliculitis) is driven by ingredients that supply fatty acids in roughly the C11 to C24 range that the yeast can metabolize; Sodium Stearoyl Glutamate is assessed against that mechanism.
What can I use instead of Sodium Stearoyl Glutamate?
Fungal-acne-safe alternatives in the same category include Butyloctyl Salicylate, Caprylic/Capric Triglyceride, Caprylic/Capric/Succinic Triglyceride, Caprylyl/Capryl Glucoside. Fungalscan suggests swaps like these automatically after an avoid or caution result.
Assessed using: Fungalscan methodology (C11-C24 rule).
This page is informational only and is not medical advice or a diagnosis. Fungal acne can resemble other skin conditions, and ingredient suitability varies by person and by formulation. Verdicts reflect community-reported data and malassezia lipid research, not a guarantee for your skin. Always patch test and consult a qualified clinician.