Ingredient · dataset v56
Rosmarinus Officinalis Leaf Oil and fungal acne
No known trigger
Why it's not a known trigger
A steam-distilled essential oil: volatile monoterpenes by definition (1,8-cineole, alpha-pinene, camphor chemotypes), with no fatty acids possible and no yeast feeding record. Same basis as the ruled neutral lavender and eucalyptus leaf oils.
Neutral means Malassezia only — as a fragrance component it still sensitizes some skin. Candida-killing lab data exists but Candida is not Malassezia, so this stays neutral under the tea-tree bar. Rosemary Extract (solvent unspecified) stays unrecognized.
Evidence strength
Judged neutral — no trigger evidence
Function
Botanical
Also listed as
Rosemary Leaf Oil, Rosemary Essential Oil, Rosemary Oil, Rosmarinus Officinalis Oil
Checked products with this ingredient (1)
Product types: Hair care
Hair care (1)
Related botanical
- Aloe Barbadensis Leaf Juice — No known trigger
- Aphanothece Sacrum Polysaccharide — No known trigger
- Avena Sativa Kernel Extract — May trigger · Limited evidence
- Avena Sativa Kernel Flour — No known trigger
- Avena Sativa Seed Water — No known trigger
- Betula Platyphylla Japonica Juice — No known trigger
- Bisabolol — No known trigger
- Boswellia Carterii Gum Oil — No known trigger
Sources
- Tunisian rosemary/myrtle EO chemotypes (1,8-cineole/camphor/pinene majors)
- Shahina et al. 2022 — rosemary oil vs Candida albicans (negative-direction for helpful)
- EU CosIng database — search the INCI name
Last reviewed: 2026-10-13 (dataset v56).
Questions
Does Rosmarinus Officinalis Leaf Oil trigger fungal acne?
No known trigger: A steam-distilled essential oil: volatile monoterpenes by definition (1,8-cineole, alpha-pinene, camphor chemotypes), with no fatty acids possible and no yeast feeding record. Same basis as the ruled neutral lavender and eucalyptus leaf oils.
Does Rosmarinus Officinalis Leaf Oil feed Malassezia?
No known link: Rosmarinus Officinalis Leaf Oil is judged with no known trigger. One screened ingredient is not a product verdict — when in doubt, ask a dermatologist.
Is this medical advice?
No. We screen ingredient lists; we never diagnose, treat, or certify products. When in doubt, ask a dermatologist.
Check a full list containing Rosmarinus Officinalis Leaf Oil →
Not medical advice: we screen ingredient lists for potential triggers — we never diagnose, treat, or certify products. Dataset v56.