Comments and suggestions: Hello, taking Rhodiola capsule in advance has a good effect, so it is recommended to take it in advance. Eat at least 10 days in advance. It is suggested to prepare some plateau protection. I ate this one day before I arrived in Tibet. Generally, three or four days after I arrived in Tibet is enough. Then prepare some ginseng slices to resist fatigue. You can also bring some vitamin C buccal tablets.