Parabens are a concern due totheir potential to act as endocrine disruptors, mimicking estrogen and potentially impacting reproductive health, fertility, and increasing the risk of certain cancers, including breast cancer.

Silicones are often considered bad in shampoo becausethey can build up on the hair shaft, creating a barrier that prevents moisture and nutrients from penetrating the hair, potentially leaving it dry and brittle over time

SLES (Sodium Laureth Sulfate) and SLS (Sodium Lauryl Sulfate) can irritate the skin and eyes, they can strip away oils, potentially leading to itching; SLES can sometimes be contaminated with potentially carcinogenic chemicals.