As an expert in clean beauty and skincare, I can guide you on how to determine if Aloe Vera has expired. Here are a few signs to look out for:

1. Change in color: Fresh Aloe Vera gel is typically clear or slightly yellowish. If you notice a significant change in color, such as it turning brown or darkening, it may indicate that the Aloe Vera has expired.

2. Unpleasant odor: Fresh Aloe Vera gel has a mild, slightly herbal scent. If you detect a foul or rancid odor coming from the gel, it is likely past its prime and should be discarded.

3. Texture and consistency: Aloe Vera gel should have a smooth and slightly gel-like consistency. If you notice any clumps, separation of liquid, or a slimy texture, it may be an indication of spoilage.

4. Mold or growth: Inspect the Aloe Vera carefully for any signs of mold or other visible growth. If you notice any fuzzy patches, spots, or unusual formations, it is best to discard it.

5. Expiration date: Check the packaging or container for an expiration date. Aloe Vera products typically have a shelf life of around two to three years. If the product has exceeded this timeframe, it is safer to assume that it has expired.

Remember, using expired Aloe Vera may not only be ineffective but could also potentially cause skin irritation or other adverse reactions. So, it's always best to err on the side of caution and replace it if you suspect it has gone bad.