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A study published in 2004 (Darbre, in the Journal of Applied Toxicology) detected parabens in breast tumors. The study also discussed this information in the context of weak estrogen-like properties of parabens and the influence of estrogen on breast cancer. However, the study left several questions unanswered. For example, the study did not show that parabens cause cancer, or that they are harmful in any way, and the study did not look at possible paraben levels in normal tissue.
Although parabens can act similarly to estrogen, they have been shown to have much less estrogenic activity than the body's naturally occurring estrogen. A 1998 study that was published in the Journal of Toxicology and Applied Pharmacology found that the most potent paraben tested in the study butylparaben, showed from 10,000- to 100,000-fold less activity than naturally occurring estradiol (a form of estrogen). This information combined with the knowledge of what a small amount of parabens that we use in our products stands to reason that there is little cause for concern.
We as the manufacturers are responsible for making safe products and if we have any doubts will drop an ingredient or a product. In this particular case we do not have any plans to stop using methyl and propyl parabens if we need to preserve a product although we will as always try not to preserve a product in the first place.
We manufacture many products that contain no parabens. Most of the products that you see in our stores or online that are solid contain no preservatives whatsoever. This includes our solid shampoo and conditioning bars, solid facial care products, massage bars and body butters, all of our soaps and buttercreams.
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