Are retinol products with the same level of retinol the same? episode 315
The Beauty Brains
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You're Not Aging, You'Re Rusting?
"I still don't know how well the product works or if there really is a measurable difference in skin with using it," she said. "It was just really cool to see this guy's life science and it's talked about on the website, but I think it's more like product focus versus wow, this is a really big area."
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