The Truth About Glycerin, Amlactin, and Beauty Ingredient Hype - episode 425

The Beauty Brains dismantle the myth that pure glycerin dehydrates skin, revealing that while undiluted glycerin is sticky and unpleasant, it doesn't pull moisture from your skin—contrary to viral claims. Instead, the real danger lies in impurities like diethylene glycol in low-quality glycerin, which can be toxic. Perry Romanowski warns consumers to avoid untested glycerin from obscure online sources and recommends diluting it for safety. The podcast also debunks fear-mongering headlines about the EU banning 15 cosmetic chemicals, exposing that most are industrial byproducts or impurities, not intentional ingredients. They reveal that Amlactin’s now-mild smell is due to formulation tweaks—not a miracle ingredient change—and that classic shampoos like Pantene Thickening haven’t changed significantly since the 1990s, despite rebranding. Finally, they explain that ingredient quality differences between brands often stem from purchasing decisions, not chemistry, with cheaper raw materials sometimes cutting corners on purity, especially in smaller brands. The episode ends with a candid look at how marketing and consumer psychology drive product perception far more than actual formula differences.