To identify the authenticity of Marumi Gold Elastin Eye Essence, you can refer to the following methods:

1. Check whether the trademark, text, and pattern on the packaging box are clear and bright, and pay attention Are there any spelling errors, alteration marks, etc. Check whether the box seal is intact and whether it is damaged or torn. If the packaging has obvious quality problems or is inconsistent with the original product, it is likely to be a counterfeit product.

2. Judge the authenticity by the smell of the product itself. Marubi Golden Elastin Eye Essence is made from high-quality raw materials, so genuine products usually have a light and elegant fragrance. If you smell a strange or pungent odor, it may be a counterfeit product that contains unsafe or inferior ingredients.

3. Check the product texture and usage experience. The texture of Marubi Golden Elastin Eye Essence should be even and fine, easy to spread when applied, and not greasy. If the user experience does not meet these characteristics, it may be a fake product.

4. Check the production date and shelf life on the packaging. The production date and shelf life should be clearly printed on the packaging, and attention should be paid to compliance with specifications.

5. Check the China Inspection and Quarantine Mark (CIQ). The CIQ logo on genuine cosmetic packaging should be able to be completely torn off, and there should be a nine-digit serial number behind the logo. If the CIQ logo cannot be completely removed, or the digital serial number is not on the packaging, it may be a fake product.

The above methods are for reference only. It is recommended to find more professionals for identification, or contact the official product customer service for consultation to ensure the authenticity of the product.