effects as it should have used real female human estrogen. The creators of Intivar female Gel renewal chose mirifica from all varieties of Pueraria also because it has been shown that it can tighten the vaginal walls and make them firm once more. It also helps increase blood flow, encouraging self-lubrication. Another ingredient is the Quercus infectoria, also known as oak gall extract. This product does much of what mirifica is done thus, in which it encourages self-lubrication and hardens the vaginal wall. But what is unique to oak gall extract is that it also directs the elasticity of the vagina stimulating new tissue growth. The more recent the tissue, the more elasticity you will have, so thanks to the oak .