For fashion and beauty, it is one of the best platforms to use. It is easy to work for a strong brand image and establish a social presence even to people that might not know you.
It used to be a platform used by mostly woman but in 2019 it tends to be now equivalent visitor both man and woman.
The strong point of Instagram is the possibility for people to discover you without them ever knowing about you, with the hashtag. Hashtags are maybe a little long to really understand and use fully his capacity but as soon as you know about it, it is a great and powerful to share your social content.
Instagram also allows Live video such as Facebook.
Read more about the case studies about the integration of social medias in your website.