You need to avoid light when drinking sea buckthorn juice. It is recommended that girls drink it at night or on cloudy days. Because sea buckthorn juice is rich in vitamin C, vitamin E, carotene and other nutrients, vitamin C and carotene are photosensitive and are easily oxidized and deteriorated when exposed to sunlight, affecting its nutritional value. In addition, sea buckthorn juice also contains a lot of acidic substances. Excessive consumption can easily cause damage to the gastrointestinal mucosa and cause diarrhea and other symptoms. Therefore, it is recommended that girls drink sea buckthorn juice at night or on cloudy days and control their intake appropriately.