Hello Dr. can you tell me about titan gel

What is titan gel ?
titan gel is a herbal product that claims the following :
1. increase sexual ability 
2. totally natural prodcut
3. increase penis size 
4. lasting longer in bed 
Is titan gel claims true ?
titan gel havent been medically proven , so its claims remain unture , and usually such a products claims many things to make profit , but the fact is :
1. for sure it cant increase penis size
2. it may incrase sexual ability , but effectivness may vary from a use to another
General advices :
1. consult your doctor before taking this product
2. dont use it if you have heart or blood disease
3. if you have used it and face any severe side effects  , reconsult your doctor soon