However, everyone's skin may react differently to cosmetic ingredients. If you are allergic or sensitive to certain ingredients, using this product may cause discomfort or allergic reaction. Therefore, before using new cosmetics, it is recommended to carry out skin allergy test first. You can apply a small piece of product on the inside of your wrist or behind your ear and wait for a few hours or one night to see if there is any discomfort. If there is no uncomfortable reaction, then the product is safe for you with a high probability.
In addition, I also suggest that you carefully read the ingredient list and instructions on the product label to understand the specific information of the product and suggest how to use it. If you have any questions or specific needs about an ingredient, you can contact the brand or consult a professional for more specific advice.
In a word, Jin Yan Yuni Little Green Bottle Essence should be safe in general, but how to use it for personal skin needs careful consideration. If you have questions about your personal allergy history or special needs, it is best to do an allergy test or consult a professional first.