The shelf life of Neostrata body lotion can be confirmed by batch number. The batch number is generally at the seal of the outer packaging of goods, from which the production date can be inferred.

The specific method is as follows:

1. Find the batch number on the body lotion box. The batch number is generally composed of letters and numbers, and usually contains production date information.

2. Find the logo related to the production date. Different products may be different, but generally you can get relevant information by looking for the logo on the product or consulting the manufacturer.

3. Confirm the shelf life. According to the production date and shelf life, it can be confirmed whether the body lotion has expired.

It should be noted that different brands of body lotion may have different identification and batch number rules, so it is best to find specific instructions on the product packaging or consult the manufacturer.