Methylparabens are chemical compounds that resemble estrogen molecules, with a similar structure to human estrogen. These are called estrogen mimickers. These are also called false estrogens. These are also called xenoestrogens. They are a form of estrogen disruptors and as such can trigger liver cyst growth. The common ones are methyl, propyl, butyl and ethyl parabens found in personal care products. Tucks is a product that some have used. This contains parabens. Here is a site that lists some paraben free skin products. Check if the product is soy, fish oil, flax, cod liver oil, wheat germ, sodium laurel sulfate free as well. Endocrine disruptors are transported into the body, daily, via absorption through the skin and hair follicles when using personal care products. Methylparabens are harmful to liver cysts.
In 2004 the media reported that English researchers identified parabens in samples of breast tumors. Parabens (alkyl esters of p-hydroxybenzoic acid) are widely used as antimicrobial preservatives in thousands of cosmetics, personal care products, pharmaceutical products, and food.
The US Environmental Protection Agency (EPA) in their report "Pharmaceuticals and Personal Care Products in the Environment: Agents of Subtle Change?" reported that the chemical preservatives called parabens—methyl, propyl, butyl and ethyl (alkyl-p-hydroxybenzoates)—displayed estrogenic activity in several tests. This means that these chemicals mimic your body´s own hormones and can have endocrine-disrupting action when they are rubbed into your body or washed down the drain into your drinking water. These disruptors interfere with your body´s endocrine system: your hypothalamus, your ovaries, your thyroid—virtually every system in your body. The EPA also stated that "continual introduction of these benzoates (parabens) into sewage treatment systems and directly to recreational waters from the skin leads to the question of risk to aquatic organisms." Scientists in Europe found other endocrine-disrupting body care chemicals in the bodies of fish that humans are eating, and in human breast milk.
Dr. Elizabeth Smith has written that "It is a known medical fact that estrogen stimulates breast cancer" and that "anything absorbed through the skin may be as high as 10 times the concentration of an oral dose." (Think about how nicotine and birth control/hormone patches work—the chemicals are absorbed through the skin!) She also reported that, in one study, a paraben was injected under the skin and was found to have an "estrogenic response on uterine tissues." Scientists observing these harmful effects on the uterus remarked that "it is suggested that the safety in use of these chemicals should be reassessed."
Endocrine disruptors are transported into the body, daily, via absorption through the skin and hair follicles when using personal care products.
A lubricant some have found useful that does not contain any methylparabens is Pjur Eros silicone cream or bodyglide. There is a cream/gel form and a liquid form. These can be found on ebay. For increasing libido, I have found fresh raspberries and saffron to be helpful. A saffron lemon cake with raspberry coulis, makes an interesting dessert. Careful if you are pregnant; raspberries are to be avoided during the first trimester, due to their muscle relaxation effects.