1. The package remains intact after opening, and the cream without oil leakage is of good quality and does not deteriorate. Deformation, oil leakage, uneven surface and inclination are all bad creams. Good cream is transparent and light yellow, and vice versa. A good cream has a special fragrance.

2. If it is sour, it is bad cream. High-quality cream will melt in your mouth without roughness, otherwise it will be inferior cream.