The claim that sunscreen disrupts hormones is largely exaggerated. From the source, according to dermatologist Dr. G. Anthony Slagel, while some have suggested that the chemicals in sunscreen might mimic or block hormones like estrogen, leading to hormonal imbalances, these concerns are based on studies involving lab mice, not humans. Dr. Slagel emphasizes that the dose of sunscreen used is so small that the risk of significant hormone disruption is minimal. Furthermore, no studies have conclusively linked sunscreen use to cancer in humans. While it's true that certain sunscreen ingredients can cause allergic reactions in sensitive individuals, the overall safety of sunscreen, particularly in the doses humans typically use, remains supported by experts. Therefore, the claim that sunscreen significantly affects hormones is not supported by current evidence.