Ingredient · dataset v56
Corylus Avellana and fungal acne
May trigger · Limited evidence
Why it's a potential trigger
Possible oil — check label: Corylus Avellana without a part name is ambiguous; the usual cosmetic form is the fatty oil, which feeds malassezia. If the label means the oil, treat this as a trigger.
Ambiguous bare plant name — kept visible as a possible oil instead of silent unrecognized. Check the full INCI: if the label means the oil, treat as a trigger.
Evidence strength
Limited evidence (1/3)
Function
Possible oil
Class rule — most plant oils: an unlisted seed, nut, kernel, fruit, bean or bran oil (or butter) is flagged as a potential trigger with limited evidence, even without its own entry.
Products without this ingredient
- OC Eight Professional Mattifying Gel
- NOW Solutions Bentonite Clay Powder 11 oz
- Avene Micellar Cleansing Water 3-in-1 200 ml
- Stridex Maximum Strength Medicated Pads
- K18 Peptide Prep Detox Shampoo 8.5 oz
- Dr. Jart+ Every Sun Day Sun Fluid SPF 50+
Related possible oil
- Actinidia Chinensis — May trigger · Limited evidence
- Adansonia Digitata — May trigger · Limited evidence
- Aleurites Moluccanus — May trigger · Limited evidence
- Argania Spinosa — May trigger · Limited evidence
- Astrocaryum Murumuru — May trigger · Limited evidence
- Avena Sativa — May trigger · Limited evidence
- Azadirachta Indica — May trigger · Limited evidence
- Bertholletia Excelsa — May trigger · Limited evidence
Sources
EU CosIng database — search the INCI name
Last reviewed: 2026-10-13 (dataset v56).
Questions
Does Corylus Avellana trigger fungal acne?
We flag it as a potential trigger (limited evidence). That means it belongs to a class the Malassezia yeast is known to feed on — not that every product with it will cause a flare. Concentration, formulation and individual skin chemistry matter.
Does Corylus Avellana feed Malassezia?
Yes: we flag Corylus Avellana as a potential trigger (limited evidence). It belongs to a class Malassezia is known to feed on — not a claim that every product with it causes a flare. Concentration, formulation and individual skin chemistry matter.
How confident is this call?
Limited evidence: Possible oil — check label: Corylus Avellana without a part name is ambiguous; the usual cosmetic form is the fatty oil, which feeds malassezia. If the label means the oil, treat this as a trigger.
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 Corylus Avellana →
Not medical advice: we screen ingredient lists for potential triggers — we never diagnose, treat, or certify products. Dataset v56.