The industry has helped attune women to signs of aging skin, and now they look to products for a solution, Mr. Rubin says.

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Holick has a solution--limited direct exposure to the sun--that infuriates many dermatologists worried about the skin cancer risk. (A far better idea, they say: Take a supplement.) In 2004 he published his book The UV Advantage, touting the benefits of sun exposure, and was kicked out of the BU dermatology department, where he previously held a joint appointment.

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Thimerosal prevented bacteria and fungi from growing in the vaccine (and many other products, for example while it is no longer used in vaccines it is still used in tatttoo inks, nasal solution products, opthalmic drugs, eye products, ear products, toxoids, antivenins, immunoglobulins, and skin test antigens).

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