I have never tried or heard of this specific product. But I looked at the list of ingredients at the Paravol web site. Just about all of the ingredients are herbal products commonly sold for aphrodisiac purposes. I've tried most of them individually, and for me they were free of side effects. Some of them were effective for sex enhancement purposes.
When you buy products like this, you are trusting the manufacturer with repect to things like honesty and quality control.
When you buy a combination of ingredients product, if you experience any favorable or unfavorable reaction, you will not know which ingredients you're reacting to.
All of these herbal products are basically over the counter drugs. And everyone reacts differently to them.
Whenever you try anything new, it's better to take a very small dose the first time, and see if there are any unfavorable side effects.