I often get vaginal infections, is there a product for prevention?

Yes, there are products available for preventing yeast infections. Yeast infections occur due to an imbalance in vaginal flora. To reduce their frequency, you can try some non-pharmacological measures such as avoiding soaps and scented vaginal washes, using unscented soap like Dove, wiping from front to back after using the toilet, wearing breathable cotton underwear, and seeking medical evaluation if you have had four or more episodes in the last year.