Water Resistant at Different Time Points (2, 4, 6, 8 hrs)
Water-resistant sun protection products are designed to retain their effectiveness even when exposed to water, but it's important to determine exactly how long they can last under different conditions. That's why our clinical testing service evaluates the water-resistant capacity of sun protection products at different time points, including 2, 4, 6, and 8 hours of water immersion.
The testing is done in vitro, meaning that it is conducted outside of a living organism, to determine the amount of SPF retention after exposure to water. This information is critical for cosmetic companies to accurately label their products and ensure that consumers understand the level of protection they can expect while engaging in water-related activities.
By testing the water-resistant capacity of sun protection products at different time points, our service provides reliable, scientific evidence that can be used for product labeling and gives consumers the confidence to enjoy their time in the water while still being protected from harmful UV radiation.