I'm not sure when I bought it, but I opened it a year ago. About 80% remains. It has deteriorated over time, so it's unclear if it can be used as a hair oil, but if anyone knows of other uses, I'd be interested to hear them. The Showa-era retro bottle is also charming. Aged deterioration Quality decline Opened No box Please consider this item, understanding that it is a used product. #CamelliaOil #OshimaTsubakiCamelliaOil #AbeToraSeiyushoCamelliaOil #ShowaRetroCamelliaOil