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Mason Pearson Hairbrushes
Originally designed in 1885, these hairbrushes are favorites of both 8 and 80-year-olds alike. (Which might have something to do with their high-quality boar bristles: just one could last a lifetime.)
Smith's Rosebud Salve
Well, it says it right there on the label: originally developed in 1892, packaged this way since 1962. It's just as classic as Vaseline petroleum, except a bit prettier.
Essie Ballet Slippers Polish
Not too pink, not too pale. It's been a best-seller since 1982.
Maybelline Great Lash Mascara
They haven't changed the formula once in the four decades since its launch, except to add a waterproof version and new colors. If it works, it works.
Chanel No. 5 Perfume
When she created it in 1920, Coco Chanel intended to give this scent to only 100 or so of her best clients. But by 1921, demand for it was so great she had to sell it in her shops and open it up to the public—and it's been a best-seller ever since.
L'Oreal Elnett Hairspray
Since it wasn't available in the U.S. until 2008, hairstylists would smuggle this classic hairspray home in their luggage whenever they traveled internationally. It's that good.
Benefit BeneTint Stain
The Benefit founders created it in 1977 for a dancer who didn't want her red pigment to fade between shows. Like the color, its popularity's been staying strong since then, too.
Clinique Dramatically Different Moisturizer
No SPF or CC or BB extras: just pure, simple moisturizer. It does one thing, and it does it well.
Elizabeth Arden Eight Hour Cream
Invented in 1930, this cream's still the single most popular common denominator in all the makeup artist kits we've seen. For moisturizing lips, for illuminating cheekbones, for priming skin for makeup, it's still the most versatile thing out there.
YSL Touche Eclat Concealer
This one's only been around since 1992, so it's the youngest product in this list by far. But in that time, it's become the #1 most popular under-eye circle eraser ever. It works miracles. Small, subtle miracles.
Dove Beauty Bar
First introduced in 1957, these super-moisturizing bars have been the preferred shower soap for decades.
La Mer Cream
More than four decades ago, this super-expensive (yet super-effective) moisturizer was invented by a NASA scientist trying to treat his own chemical burns. So if it seems pretty genius, well, that's why.