Ingredient · dataset v56
Glycol Distearate and fungal acne
May trigger · Moderate evidence
Why it's a potential trigger
A double stearic-acid ester; each half is the C18 staple fat Malassezia yeast harvests.
Common in rinse-off shampoos (Head & Shoulders and similar) — rinse-off, but still flaggable food by class.
Evidence strength
Moderate evidence (2/3)
Function
Fatty ester
Fatty esters: split by the yeast’s enzymes into edible fats.
Also listed as
Ethylene Glycol Distearate
Checked products with this ingredient (3)
Product types: Antifungal treatments
Antifungal treatments (3)
- Nizoral A-D Anti-Dandruff Shampoo (Ketoconazole 1%)
- Selsun Blue Medicated Anti-Dandruff Shampoo (Selenium Sulfide 1%)
- Head & Shoulders Clinical Strength Anti-Dandruff Shampoo (Selenium Sulfide 1%)
Products without this ingredient
- Stridex Maximum Strength Medicated Pads
- Noble Formula 2% Pyrithione Zinc Shampoo 8 fl oz
- CoTZ Face Prime & Protect Tinted SPF40 1.5 oz
- Pyunkang Yul Essence Toner 200 ml
- Biossance 100% Squalane Oil 3.3 oz
- La Roche-Posay Toleriane Sensitive Fluide
Related fatty ester
- Ascorbyl Palmitate — May trigger · Moderate evidence
- Ascorbyl Tetraisopalmitate — May trigger · Moderate evidence
- Behenyl Acrylate — May trigger · Limited evidence
- Behenyl Behenate — May trigger · Limited evidence
- Bis-Octyldodecyl Dimer Dilinoleate/Propanediol Copolymer — May trigger · Moderate evidence
- Butylene Glycol Dicaprylate/Dicaprate — No known trigger
- Butyloctyl Salicylate — May trigger · Limited evidence
- C12-15 Alkyl Benzoate — May trigger · Limited evidence
Sources
- Brunke & Hube 2006 — MfLIP1 extracellular lipase hydrolyses Tweens (Microbiology)
- Mayser et al. 1995 — ester hydrolysis depends on alcohol moiety (Acta Derm Venereol)
- EU CosIng database — search the INCI name
Last reviewed: 2026-10-13 (dataset v56).
Questions
Does Glycol Distearate trigger fungal acne?
We flag it as a potential trigger (moderate 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 Glycol Distearate feed Malassezia?
Yes: we flag Glycol Distearate as a potential trigger (moderate 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?
Moderate evidence: A double stearic-acid ester; each half is the C18 staple fat this yeast harvests.
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 Glycol Distearate →
Not medical advice: we screen ingredient lists for potential triggers — we never diagnose, treat, or certify products. Dataset v56.