Hi there Tahat, welcome to the forum,
Simple answer to your question is; try just one at a time.
If you try them one at a time at various different dosages, it will give you a feel for what they do and what the right number of sprays is for you and the effect you desire. Once you’ve done that bit of testing, then try mixing them together.
For a more comprehensive explanation, read this post How To Find Your Sweet Spot (How to find your sweet spot...)
What are you trying to achieve from your pheromone use?