Yes, Sabino Moisture Block is designed to help protect hair from moisture damage and frizz, even in humid or wet conditions. While it’s not meant to keep your hair completely dry underwater, it does create a barrier that helps prevent hair from absorbing excess moisture, which can be a game-changer for activities like mermaiding. The product is water-resistant and needs shampoo to remove, which makes it different from typical styling products. If you're curious about more details, you can check out the site for further reviews and user experiences. I haven’t personally tried it, but many users report that it works well to maintain smooth, frizz-free hair in humid or damp environments. It could definitely be a useful product for anyone who spends time in the water, as it helps hair stay protected and manageable. If you do try it, let us know how it works for you!