If youre a fashion account, what type of fashion are you selling, not all of its the same. I had a teespring storemade most of my sales through instagram and tumblr. so there is conversion, influencer research is needed. if you sell instagram fashion like fashion nova type clothes look for influencers who shout them out and be a competitor, cheaper prices and free shipping and returns, they only give you store credit. Even if instagram has no conversion, you still need to send your products out for shououts, because one you get people in your clothes for realistic reviews and you get more exposure so its good in the long run. If your dropshipping I do think you should buy some of the products and send it out.
this was an extra response lol