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Renova's success inspired something of a rush on vitamin A. But instead of using tretinoin--which would trigger intense FDA scrutiny, not to mention a patent-infringement lawsuit--most over-the-counter skin products contain other forms of vitamin A. Although these compounds, technically known as esters, are not biologically active, the theory is that certain enzymes in the skin would convert at least some of them into tretinoin...
...found the happy medium. But there have been enough complaints about hydroxy acids that the cosmetics industry financed an independent review, which concluded that the over-the-counter products were safe as long as they didn't contain more than a 10% solution of hydroxy acids. They added one important caveat. Since hydroxy acids heighten the skin's sensitivity to ultraviolet radiation, users should always slop on sunscreen (at least SPF 2, higher if you spend much time outdoors). Aqua Glycolic, which has one of the highest concentrations, is modestly priced and available at your neighborhood Wal-Mart...
...also in the Taupo Volcanic Zone in New Zealand and the frigid depths of a lake in British Columbia. When astronauts or robot craft finally start hauling home rocks from other planets, those specimens can be compared with Cady's for the tiny thumbprint of life both may contain. The trick, she says, "is knowing what clues to look...
...started about two years ago, when the buzz from European antibiotech protest groups began to ricochet throughout the Net, reaching the community groups that were springing up across the U.S. Many were galvanized by proposed FDA regulations that would have allowed food certified as "organic" to contain genetically modified ingredients--an effort shouted down by angry consumers. Meanwhile, Greenpeace began to target U.S. companies such as Gerber, which quickly renounced the use of transgenic ingredients, and Kellogg's, which has yet to do so. With so-called Frankenfoods making headlines, several other companies cut back on biotech: McDonald's forswore...
...MONTREAL, JANUARY 2000 140 nations, including Mexico, Australia and Japan, sign the Cartagena Protocol on Biosafety, which requires an exporting country to obtain permission from an importing country before shipping GM seeds and organisms and to label such shipments with warnings that they "may contain" GM products...