1. Colla Corii Asini Block: Colla Corii Asini in the traditional sense, commonly known as raw rubber, is a glue stick made from the dry or fresh skin of a donkey by boiling and concentrating, but a proper amount of yellow wine, crystal sugar and soybean oil are added in the production process (see Colla Corii Asini in China Pharmacopoeia). Generally, other edible or edible products need to be processed again, but they can also be mashed and taken directly with water or according to the prescription.

2. Colla Corii Asini powder: It is a convenient product made from colla Corii Asini stock solution by vacuum drying technology or grinding colla Corii Asini blocks. These are called raw rubber powder or pure gelatin powder. There are also manufacturers who add other auxiliary ingredients (such as hawthorn, longan or medicinal materials) to the original Geely powder to make different flavors of Geely powder products, also known as compound Geely powder. Generally speaking, rubber powder can be divided into pure rubber powder and composite rubber powder. The raw rubber powder can be taken directly or processed into paste, and the compound rubber powder can be taken directly.

3. Ejiao Cake: Ejiao Cake is a food made of Ejiao, black sesame, walnut kernel, rock sugar and yellow wine. It has comprehensive health-care effects of nourishing blood, benefiting qi, beauty beauty, relaxing bowels and improving immunity, and is a tonic with compound health-care value suitable for all ages and pregnant women.

Colla Corii Asini and Colla Corii Asini powder are two common categories of colla Corii Asini, and of course, this is what people eat the most. They are all Ejiao, but the physical form is different, and the eating method and efficacy will be very different. This is not only because of the wisdom of our ancestors, but also because Ejiao itself is a good thing that everyone needs. This article first introduces these two kinds of Ejiao, so please look forward to the next article.