Balmain has been created by the master of couturier. He has spent his early childhood seeing what the world of fabrics looks like. He spent his entire doing that work and giving it his own flavour and twist, making it all the more attractive.
As someone who has known fashion so closely, he could not have made a mistake in creating some unique fragrances. A scent completes any look and even outfits that aren't most remarkable can be made to stand out by decorating them with the right fragrance. Who other than Balmain could have been more familiar with this equation. This is what he transferred to his perfumes as well. He ensured that each scent is fashionable and trendy, just like the clothes that make it to fashion magazines. And he did it.