Methylisothiazolinone Comedogenic Rating
Will Methylisothiazolinone clog your pores? Here is how Methylisothiazolinone performs in acne-prone and combination skin routines.
Methylisothiazolinone Comedogenic Profile
Preservatives are used at minimal concentrations (under 1%) and do not contribute to comedogenicity or pore clogging.
How Methylisothiazolinone Affects Pores
As a preservative, Methylisothiazolinone inhibits the growth of harmful bacteria, yeast, and mold in water-containing formulas. Commonly found in all water-based creams, serums, lotions, cleansers, and masks. Best for essential in all water-based cosmetic formulations.
Tips for Acne-Prone Skin
- •Look for lightweight, non-comedogenic formulations containing Methylisothiazolinone
- •Patch test leave-on formulas for 48 hours before full use
- •Consider the full vehicle and base oils of the formula, not just individual actives
- •Use our free ingredient scanner to check full product lists for comedogenic triggers
Complete Methylisothiazolinone Guide
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