Can I still take Ejiao (donkey-hide gelatin) after its expiration date?

Aug 30, 2025 Source: Cainiu Health
Dr. Yu Yongchao
Introduction
Expired donkey-hide gelatin (Colla Corii Asini) is not recommended for consumption. Even if there is no obvious change in appearance, there may still be a risk of component degradation, which could be harmful to health if ingested. The main component of donkey-hide gelatin is collagen, which may break down after expiration. Additionally, bacteria or mold may develop, leading to nutrient loss and the production of harmful substances. Even if the expired donkey-hide gelatin does not appear moldy or have an unusual odor, it may still pose risks.

Generally, it is not recommended to consume Ejiao (donkey-hide gelatin) after its expiration date. Even if there are no visible changes in appearance, there may be a risk of component degradation, which could be harmful to health after consumption. The detailed analysis is as follows:

Ejiao's main component is collagen, which may degrade after expiration. Bacterial or fungal growth may also occur, leading to nutrient loss and the production of harmful substances. Even if expired Ejiao shows no signs of mold or odor, internal deterioration may have already occurred. Consuming it might irritate the gastrointestinal tract, causing discomfort symptoms such as abdominal distension and diarrhea. It will not provide the intended nourishing effects and may instead negatively affect health. Improper storage, such as prolonged exposure to humid or high-temperature conditions, may also cause Ejiao to soften, stick together, or develop mold even before its expiration date.

In daily life, one should check the expiration date before purchasing Ejiao, buy according to need, store it properly, and consume it within the shelf life to ensure safety and achieve the desired nourishing effects.