which helped shape human behavior online and off for more than a decade, is proving to be something of a fad. It’s withering in the sad, slow way that internet habits do; eventually, the people who send public birthday messages
You're targeting people who like astrology and whose birthday is coming up. You could use a generic “buy a bracelet with your astrology sign” copy paired with an image/video of all the jewelry. A better strategy, however, would be to target those whose birthdays are coming up ...