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Brand Investigation
Brand Investigation A grade
Life Extension
Life Extension's paradox: quality-control muscle, request-only proof, and a cleaned-up regulatory trail
Life Extension

Supplement Guide
Supplement Guide Promising evidence
Ginger (Zingiber officinale)
Picture a wooden ship rolling on the Indian Ocean, sailors trading a knobby root worth its weight in silver. Two thousand years later, that same root sits in a...
Ginger

Supplement Guide
Supplement Guide Promising evidence
Methylsulfonylmethane (MSM)
A solvent changed the way surgeons preserved organs—and in its wake, an odorless offshoot quietly slipped into runners' bottles and arthritis pill organizers.
MSM

Supplement Guide
Supplement Guide Weak evidence
Glucosamine
In 1876, a young German surgeon dissolved discarded crab shells in acid and crystallized a strange sugar he called "glycosamin." Decades later, the...
Glucosamine sulfate

Supplement Guide
Supplement Guide Robust evidence
Vitamin C (ascorbic acid)
Picture a sailor in 1747, gums bleeding, legs spotted, morale sinking. Six days after eating two oranges and a lemon, he's back on duty. Two centuries later, a...
Vitamin C

