Hashtags are lottery tickets. Hashtags are used to reach out to more people on Instagram that don’t follow you but follow the hashtag you posted under. Your profile is also ranked under hashtags.
IMPORTANT: If you start using hashtags, give at least 15-20 posts a try with different hashtags sets before dismissing the method off. Instagram keeps boosting your profile up the ladder in hashtag performance.
This is why you need to be persistent with using hashtags. It may take a few tries before they start working, but once they do - they will become consistently effective and get you crazy results every time!
Some of our clients went from reaching 100-200 users with hashtags to getting a 70-100K reach consistently over time.