Propolis recently been isolated from red propolis, and prenylated acids such as 4-hydroxy-3,5-diprenyl cinnamic acid have been documented. An analysis of propolis from Henan, China found sinapinic acid, isoferulic acid, caffeic acid, and chrysin, with the first three compounds demonstrating antibacterial properties. Also, Brazilian red propolis, largely derived from "Dalbergia ecastaphyllum" plant resin, has high relative percentages of the isoflavonoids 3-hydroxy-8,9-dimethoxypterocarpan and medicarpin. Other flavonoids commonly present include galangin and pinocembrin. Caffeic acid phenethyl ester (CAPE) is also a component of some varieties of propolis from New Zealand. Occasionally, worker bees will even gather various caulking compounds of human manufacture, when
Eyelid glue a minute before holding the fold. This method creates or enhances a fold in the eyelid ("double eyelid") that opens up the eye exposing the eyelashes. The use of eyelid glue also exists amongst men. The glue does not last and must be reapplied after a few hours. Eyelid glue may also cause irritation. A variant called eyelid tape or crease tape comes in a fibrous elastic strip that is trimmed to shape and placed on the eyelid. The tape creates a crease that stays on the eyelid. The tape does not last and must be reapplied after a few