Trouble with Lichen

Biochemists Diana Brackley and Francis Saxover, working independently, both isolate a compound from a rare lichen that appears to dramatically slow the aging process. Francis quietly doses himself and his family and says nothing; Diana takes the opposite approach, opening exclusive beauty spas as cover to give the drug to well-connected women across Britain, reasoning that if longevity becomes known before women have a foothold, men will simply monopolize it as they have everything else. The secret can only hold so long, and the novel's tension builds toward the moment it gets out. A quietly subversive social science-fiction novel from John Wyndham.