BestWhip cream chargers are composed primarily of nitrous oxide and metal, which are not typically considered allergens. However, it is important to note that the potential presence of allergens may vary depending on manufacturing practices and the individual circumstances surrounding the production. BestWhip, Inc. emphasizes safety and quality in their products, but they do not guarantee that their cream chargers are free from any allergens due to possible cross-contamination during production or packaging. It is advisable for individuals with specific allergies to exercise caution and refer to the most current product information available on the BestWhip website. This will ensure that you have the latest details regarding any potential allergens and safety measures related to their cream chargers.