Indonesia’s cosmetic industry is currently experiencing huge growth. In 2023, it is known that there are around 1,010 (one thousand and ten) cosmetic companies in Indonesia. The large number of cosmetic product businesses in Indonesia has ultimately led to the large number of new cosmetic products in the Indonesian cosmetics industry. Based on the Indonesian Food and Drug Authority’s (BPOM) data, there are around 510 thousand cosmetic products registered in 2024. The large number of cosmetic companies and products in Indonesia, shows tight competition between business actors. Seeing those tight competitions, business actors are required to have new strategies and innovations in order to attract the attention of consumers. One of those strategies is through claims. In Indonesia, claims are protected by the BPOM Regulation 3/2022. Business actors are expected to comply with the BPOM Regulation 3/2022 when making cosmetic product claims. Unfortunately, while making those claims, lots of business actors use excessive claims or overclaim to attract customers to buy their cosmetic products. Moving along with that, this study aims to distinguish cosmetic product claims that are allowed and cosmetic product claims that are classified as overclaim and to analyze the protection that consumers will be receiving as results of overclaim in order to achieve legal certainty. To do those, a normative legal research approach is employed to analyze regulations relating to consumer protection and cosmetic product claims. Through those methods, it is indicated that cosmetic product claims are classified as overclaim when they violate the requirements of cosmetic product claims in the BPOM Regulation 3/2022 and its Appendix. Which contains claims that are permitted and prohibited for advertising in cosmetic products. Consequent with overclaim advertising being prohibited, affected consumers have the rights to demand liability, receive compensation, and take legal action towards business actors.