Horse fat in a sheet mask? Why it keeps showing up in J- and K-beauty
Someone in r/AsianBeauty bought a matcha sheet mask at a Japanese discount store, turned it over and found "horse fat" in the ingredient list. The question was simple: does that really mean what it says?
What the replies said
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Yes, it is horse fat, usually marketed as horse oil. Commenters said it has a long history in Japanese and Korean products and is valued as a rich moisturiser that many describe as close to skin's own oil.
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Longtime members remembered a horse-oil wave in Korea around 2014–2015, with cult creams and sheet masks, and joked that 2026, another Year of the Horse, could bring it back.
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Several people with very dry skin called horse-oil creams their favourites.
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One commenter with alpha-gal syndrome said the thread was a timely warning, since it could have triggered a serious reaction for them, and they now plan to check labels.
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Others added context: horse meat is eaten in parts of Japan, so using the fat is not unusual there. Some objected on ethical grounds and said they would avoid it; others said vegetarians simply deserve to know before buying.
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The thread wandered into other animal-derived ingredients too, from bee products and silk proteins to placenta extracts.
Desk note: On labels it appears as "Horse Fat" (its INCI name); in Japanese it is 馬油. INCIDecoder lists its official CosIng function as skin conditioning, and most products on its list come from Korean and Japanese brands, many with "Mayu" or "horse oil" in the name. If you avoid animal ingredients or have an allergy to mammal-derived products, scan for those words, and ask your doctor if unsure.
Would you use a horse-oil product, or is it a firm no?
Original thread: r/AsianBeauty — horse fat on a face mask label?! · See also: INCIDecoder · See also: Wikidata
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