Bishengyuan's Qingyuan Tea and Changrun Tea are both health drinks made of tea as the main raw material and refined by modern technology. Their differences are:

1. Different raw materials: green tea as the main raw material of Qingyuan Tea and black tea as the main raw material of Everlasting Tea.

2. Functions are different: the main effect of Qingyuan Tea is to remove heat and toxins, reduce fat and blood pressure, and promote blood circulation, while Changrun Tea is to speed up the metabolism, lowering blood sugar, promote digestion, and deodorant as the main effect.

3. Applicable to different groups: Qingyuan Tea is suitable for people who have a hot body, dry mouth and acne; Changrun Tea is suitable for people who are obese, have a hot body, and often drink alcohol, eat meat and other people to drink.

Overall, Qingyuan Tea and Changrun Tea have their own characteristics and advantages, and should be consumed according to the individual's physical condition and needs when choosing.