The article refers to the consumer’s right to information, which is expressed in art. 51 of the Polish Constitution. The author analyzed that provision, explaining the possibility of its horizontal effect, e.g. B2C. Due to the fact that constitutional rules are clarified by statutes, it was reasonable to draw attention to the statute of 29 August 1997 on the protection of personal data, namely the art. 24, art. 25, art. 32 and art. 33. Those provisions relate to the powers of a weaker entity in terms of access to information relating to it.