Poshmark clothing resellers explain how they're using Instagram and TikTok to grow their businesses and help drive tens of thousands of dollars in sales

· Poshmark is an online marketplace where users can sell and buy used items. Some sellers have even turned it into a six-figure business for themselves.
· Business Insider spoke with two sellers in their early 20s who use Poshmark as their main source of income. One has done over $80,000 in sales and another said she paid for...