Colla Corii Asini is a rectangular block, and its color is divided into brown-black or jet-black, accompanied by luster, showing a slightly transparent effect under illumination.

Moreover, according to the clear provisions of the National Pharmacopoeia, donkey skin can only be used to cook Ejiao, and the glue produced by the fur of other animals has different effects. If Ejiao is cooked with horse skin, it will lead to miscarriage of pregnant women.

Extended data:

Taboos for eating Ejiao:

1, cannot be eaten with greasy food.

2. Use with caution for patients with spleen and stomach weakness, vomiting and diarrhea, abdominal distension and loose stool, cough and phlegm, or cold.

3. Pregnant women, patients with hypertension, diabetes and children should take it under the guidance of a doctor.

4. If the symptoms do not improve after two weeks or during the medication, or the symptoms get worse, or new serious symptoms appear, you should stop taking the medicine immediately and go to the hospital.

Before eating, if there is a change in personality, it is forbidden to eat.

6. If the symptoms do not improve after two weeks or during the medication, or the symptoms get worse, or new serious symptoms appear, you should stop taking the medicine immediately and go to the hospital.

Baidu encyclopedia-Ejiao (medicinal)

People's Daily Online-8 taboos should be paid attention to when eating more blood-enriching effects of Ejiao.