Retinol, niacinamide, vitamin C and hyaluronic acid: In recent years, these commonly-found ingredients have been name-dropped over and over again in the skincare community. Hyaluronic acid, in ...

Could lithocholic acid, a compound produced when gut bacteria process bile, be the missing link between a low-calorie diet and its age-defying effects? Experiments in mice, flies and nematode worms ...

Aimed at softening and smoothing skin by gently but effectively exfoliating the top layer of skin, lactic acid can significantly improve the appearance of all skin types with regular use. It can be ...