Since the late 70’s, the Holy Grail of the marketers who play in the “natural” cosmetic market, has been the search for a “natural” preservative. Although one does exist, it is always rejected by these hypocrites for other reasons. This one chemical is so natural, it is found in every cell in our bodies. It is Methylene Glycol.

Since this doesn’t sound “natural” enough for these folks, they go off on their crusade to fine the Holy Grail. Since these people really believe that something found in nature is safer than something made by chemists, it is easy to fool these people. As P.T. Barnum once said “There’s a sucker born every minute”.

The first one to find the market was Grapefruit Seed Extract. This has been re-invented several times. In the late 70’s it was found to be Methyparaben dissolved in Propylene Glycol. Then came Triclosan in Propylene Glycol and the latest has analyzed to be Benzethonium Chloride. For more details.

Recently there has been interest shown in Japanese honeysuckle extract. This is offered as Lonicera Caprifolium Extract under the trade name of Plantservative WSr by Campo. The specifications says it is 30-37% water with the balance being “Lonicera (lonicerin)water soluble esterified actives”. There is no description of these % “actives” but they are the described as the Metyl, Ethyl, Propyl and Butyl esters. The simple statement that the extract is esterified begs the question of “natural?” Further the pH of the product is 9-12 which is usually cidal to most bacteria, yeast and mold.

People who have tried this product at levels up to 1% have found that they passed typical efficacy challenge tests. However on aging, the products turn yellow and then failed the same tests. This raise serious questions of it stability. Currently the FDA shows 34 formulations registered with them using this chemical.


Katherine Corkill is the founder and creative director of Sterling Minerals Cosmetics. She became inspired to create products that would assist men and women in restoring the radiant healthy skin of their youth. It is her philosophy as an advocate of all things natural and organic when possible, to keep all skin looking young and healthy through protection from the suns’ harmful UV Rays, along with free radicals and environmental pollutants we are exposed to daily. Due diligence in knowing what goes into and on our bodies, and how it effects us long term has been a lifestyle for her and her family for more than 25 years. Holistic and wholesome nutrition combined with natural and organic ingredients in skincare products are key to keeping us healthy and beautiful inside and out. Katherine has over 20 years in Holistic and Homeopathic remedies with the use of Health Care through Ayurveda, and has been an Entrepreneur for more than 25 years. She has provided extensive research in Beauty and Cosmetic Industry Standards, and pursued studies in Chemistry, Aesthetics and Color Theory. She’s also the Master Formulator of her own personal line of mineral makeup for Sterling Minerals Cosmetics. She recently introduced her new line of ONATI Skin Care, where she believes in combining science with nature for the ultimate skincare regimen, keeping skin healthy while avoiding potential problems. Her commitment is to continue her never-ending research and provide truth, integrity, ethics, and education to anyone who seeks it. She will always continue to strive to offer result-driven formulas to those who will accept nothing less

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