You can use online keywords related to your product and target audience to find popular hashtags. There are also hashtag generators that can help you find relevant tags. On Instagram, you can add up to 30 hashtags in the post caption or as a comment.
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While adding hashtags only in the caption is possible, it is recommended to include a caption that provides context for the image and to use relevant hashtags to increase the reach of your post to the right audience.
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