Answers
Sometimes — but "buy first, get reimbursed later" is also one of the most common scam structures targeting creators, so it deserves more scrutiny than a standard barter or paid deal.
Some real brands do run reimbursement-style collaborations, especially smaller or newer businesses without an established process for shipping free product. This can be legitimate when it’s backed by a written agreement specifying the exact refund amount, a clear payment date, and a brand with a verifiable track record.