Every box of genuine Okamoto condoms sold by Okamoto is labeled with Okamoto's anti-counterfeiting label on the outer box packaging, and all Okamoto products without anti-counterfeiting labels are regarded as counterfeit and shoddy products.

When the anti-counterfeiting label is marked with wet water, the words "Okamoto" in fluorescent red and the words "Okamoto" in traditional Chinese characters in fluorescent blue can be seen by illuminating the anti-counterfeiting label with the purple fluorescent lamp that is common in the market. Okamoto's anti-counterfeiting logo is 20mm×25mm in size, oval, with light yellow flower pattern at the bottom, black traditional Chinese character "Okamoto" in the middle, slightly smaller "China Service Agency" at the bottom, and the words "Shenzhen Wanshengtang Industrial Co., Ltd." and "wet water reveals authenticity" at the upper and lower arcs respectively. Okamoto condom. This is the basic identification method.