Welcome to the forums Hatter!!
First off there is no such thing as a pheromone that will produce and AXE EFFECT. There are however pheromones that will help someone such as yourself who is making an effort to the end you are describing. Think of it as your personality being the cake and the mones are the icing giving you that “sweet” edge if you catch my drift.
The pheromones most likely to help you in your quest would be AMMO which gives off a strong sexy vibe.
then considering your shyness i would recommend Instant Shine and Instant Openness.
Instant Shine gives “that feel good i am on top of the world feeling” to both you (self effects) and to others. Instant openness is the “ice breaker pheromone” it opens people up to talking and initiating contact with you.
Finally for confidence we have to break out the big guns A314 (MY FAV) This will give you that James Bond I am unstoppable vibe, this will particularly help with lack of confidence and low self esteem.
You will need to learn your sweet spots or ideal dosages so please read the following link
Good luck and let us know your results!!!