Netflix Teen Comedy Helps Yakult Yogurt Drink Fly Off Shelves

Dairy producer Yakult Honsha Co. is finding that the power of product placement is so potent it works even when it’s mistaken.

Viewers of Netflix’s new romantic comedy, “To All the Boys I’ve Loved Before,’’ have noticed the main character’s sister drinking a yogurt out of a distinctive little bottle, and are talking about it on Twitter, according to Mark Bachman, head of M Science’s TickerTags, a research firm that analyzes the relationship between social media and a company’s performance.