Trader Joe's sells a two-flavor pack of lip butter balms that some say are a dupe for Summer Fridays'.Meredith SchneiderI compared Summer Fridays' lip butter balm to its supposed dupe from Trader Joe's.Trader Joe's package came with almost twice the product for less than half the price.They were so similar that I'd rather save money by getting the Trader Joe's balm.Summer Fridays is perhaps best known for its viral lip butter balm.