mandelöljei
Mandelöljei is a term that appears to be a misspelling or a portmanteau, as "mandelöl" is the German word for almond oil. There is no established or recognized term "mandelöljei" in common usage within cosmetic, culinary, or medical contexts. It is highly probable that "mandelöljei" is a phonetic or typographical error for "mandelöl," which refers to almond oil.
Almond oil is a versatile vegetable oil extracted from the kernel of the almond tree (Prunus dulcis).