The waterproof performance of DIY eyelashes varies from product to product.
Generally speaking, if glue and false eyelash materials with waterproof function are used, DIY eyelashes can be waterproof to a certain extent. For example, some special waterproof eyelash glue can keep the DIY eyelashes firmly attached after contact with water, making the eyelashes not easy to fall off.
However, even DIY eyelashes that claim to be waterproof cannot be fully guaranteed to be absolutely waterproof in all cases. Long-term contact with water, hot showers, swimming, etc. may affect their waterproof effect. Moreover, waterproof DIY eyelashes usually also need to use specific makeup removers to be thoroughly cleaned when removing makeup.
If you need a waterproof eyelash effect, when choosing DIY eyelash products, you can pay attention to the product instructions and user reviews, choose glue and DIY eyelashes with better waterproof performance, and avoid excessive friction and contact with water after use to maintain its waterproof effect.