In a recent study at the University of California Berkeley's School of Public Health, researchers tested 32 commonly sold lipsticks and lip glosses and discovered that they contained lead, cadmium, chromium, aluminum and five other metals, some at which were at potentially toxic levels.

Study author Katharine Hammond, professor of environmental health sciences at the university told The Huffington Post about the study.

"We looked at nine heavy metals and found that all of them were present in most of the lipsticks, but not necessarily at really high levels. Low levels of metals may not create a risk, but as the exposure increases, the damage can increase."

The researchers looked at 8 different lipsticks and 24 lip glosses, bought at drug stores, department stores and chain specialty stores. The prices of the products ranged from $5.59 to $24.

Hammond expressed the risk of these metals being a problem, what is more unnerving is the potential of ingestion of the metals.

"The metals that we were really most concerned about were cadmium, chromium, aluminum and manganese."

However, Hammond cautioned that the study is merely a first step that requires further investigation on both the levels of metals in certain lip products, as well as what the health implications could be.

"I don't think that people should go into a panic, or abandon lipstick, but I do think this is a concern," she said. "I don't think this is trivial. It needs to be addressed."

The results of the study were published on Thursday in the journal, Environmental Health Perspectives.