It sounds great in theory, but New York City board-certified dermatologist Karyn Grossman, M.D., brings up an additional point to consider when submitting bodily fluids. "Your hormones fluctuate significantly over a month if you are not pregnant and not using hormone-based birth control," she says. "So, calculating 'abnormal' vs 'normal' levels in women between the ages of 12 and 45 may be somewhat difficult.
Another thing to understand is that the level of customization is different for each company. Final skin-care formulations should be tested for safety, stability, efficacy, package compatibility, and more, so it's unlikely a truly custom formula will show up on your door at competitive prices.
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Source: Forbes - 🏆 394. / 53 Read more »