Celebrity endorsement is a great way to promote your product. It costs a lot of money and people may not trust the product as they know these celebrities have received money to say good things about the product. Unlike celebrities, people trust common people who are just like them. This is where social proof comes in. What common people say about your products on public platforms like social media really matters. Therefore, as a business, you need to encourage your past customers to share positive feedback and reviews, and display them prominently on your social pages to reassure potential buyers.