NeoStrata

The glycolic acid in half the bathroom cabinets in the world traces to a treatment for a rare, disfiguring genetic disorder. While caring for patients with ichthyosis — a condition that leaves skin dry, thickened, and scaling — two researchers who had met years earlier in Philadelphia discovered that alpha hydroxy acids could dramatically smooth and renew skin. Their landmark dermatology paper appeared in 1974, the first peel patent followed in 1975, and a partnership of more than three decades grew from that single clinical observation. What began as relief for a painful disease turned out to be the foundation of the entire modern exfoliation category.

The pair didn't commercialize for over a decade, spending those years refining the chemistry before launching their company — first in Connecticut, later headquartered in Princeton, New Jersey — to sell the products they'd perfected. The name fuses the Greek for new with the Latin for layers, a nod to the cell turnover the acids accelerate. The founders never stopped inventing, going on to patent polyhydroxy acids and lactobionic acid, gentler next-generation exfoliants designed to deliver similar resurfacing with less sting, and the business expanded into separate lines for clinics and for home use.

By the mid-2010s, a recognized dermocosmetics leader with sales reported around a hundred million dollars, the company was folded into a healthcare giant's consumer arm, later spun off as an independent firm.

The honest read: this is one of the rare brands whose scientific pedigree is not marketing — the founders literally authored the foundational literature, and the formulas reflect it, with carefully buffered acids that tolerate better than their strength suggests. The catch is that the chemistry they pioneered is now everywhere and long off-patent, so competent glycolic acid sells for a fraction of the price. What you still buy here is the original, meticulously engineered version of an idea that reshaped skincare — the source, and the craft, more than anything a cheaper acid lacks.

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