Hashtags help Instagram users discover content and accounts to follow. The right hashtag, or combination of hashtags, will will help people find your content.
Here’s a quick guide to making the most out of hashtags:
Do find out what hashtags are popular.
Do create your own hashtag to help people easily find your content.
Don’t be too stingy in your use of hashtags - the generally agreed optimal number is 11, but you can use up to the maximum of 30 per post.
Don’t use gimmicks such as #like4likes #follow me.
Here's how The White Company tags their photos: