Herbalife is a multi-level marketing company that sells various health and wellness products. As part of its business model, it uses independent distributors to sell its products and grow its customer base. These distributors often use various marketing materials, such as stickers, to promote their business and attract new customers. It is possible that a Herbalife distributor may use a sticker or label with the company's branding or logo to identify themselves as an official distributor of Herbalife products.