Is Rosmarinus Officinalis Leaf Extract fungal acne safe?
Rosmarinus Officinalis Leaf Extract is generally considered safe for fungal-acne-prone skin. Carnosic acid shows in vitro antifungal vs Malassezia - beneficial.
Also known as Rosemary Extract
Why this verdict
Carnosic acid shows in vitro antifungal vs Malassezia - beneficial.
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.
Frequently asked questions
Is Rosmarinus Officinalis Leaf Extract safe for fungal acne?
Rosmarinus Officinalis Leaf Extract is generally considered safe for fungal-acne-prone skin. Carnosic acid shows in vitro antifungal vs Malassezia - beneficial. This is informational only and not a diagnosis; suitability varies by person and formulation.
Why is Rosmarinus Officinalis Leaf Extract considered fungal-acne safe?
Carnosic acid shows in vitro antifungal vs Malassezia - beneficial. Fungal acne (malassezia folliculitis) is driven by ingredients that supply fatty acids in roughly the C11 to C24 range that the yeast can metabolize; Rosmarinus Officinalis Leaf Extract is assessed against that mechanism.
Assessed using: Folliculitis Scout, PubMed Weckesser 2007.
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.