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Ingredient

Palmitic Acid

The most common saturated fatty acid in animals and plants (C16) and a natural component of your own skin lipids, used in cosmetics as an emollient, emulsifier, and foam-building cleansing agent (it saponifies into sodium palmitate soap).

Key facts

INCI name
Palmitic Acid
Evidence grade
limited evidence
Pore-clogging
2/5 (a contested measure — take it lightly)
Fungal acne
Reported trigger
Reviewed

Similar ingredients

others that do something alike

Good to know

Fungal-acne triggercaution

Can feed Malassezia yeast — a trigger for fungal acne (pityrosporum folliculitis) in people prone to it.

What it does

limited evidence

Benefits

  • Skin-identical fatty acid that helps moisturizers feel smooth and emollient
  • Helps emulsify formulas and build foam in cleansers and shaving products

Side effects

  • Mildly comedogenic (commonly rated around 2/5), so it may contribute to clogged pores in those prone to them
  • Sits within the C11-C24 fatty-acid range that lipid-dependent Malassezia yeast can feed on, so it is generally flagged as a potential fungal-acne (Malassezia folliculitis) trigger

Who it's for

Most skin types as a supporting emollient/emulsifier; dry skin appreciates its smoothing feel

Who should be careful

Very acne-prone or fungal-acne (Malassezia folliculitis)-prone skin may want to limit fatty-acid-heavy products

Researched & reviewed · July 2, 2026

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