Based on the provided reference, application instructions for a product (likely brow code tint) mentions usage for lashes, recommending application with a stick until covered and specifying application times of 5-12 minutes. Therefore, yes, brow code stain can be used on lashes.
The instructions suggest the following for lash application:
- Use an application stick to cover the lashes with the tint.
- Application time should be between 5-12 minutes, depending on the desired intensity.
- Remove eyelash protection papers carefully.
- Remove excess tint with a dry cotton ball.