What practice became widespread in the twentieth century?

Cosmetic surgery became widespread in the twentieth century due to advancements in medical techniques, increased societal acceptance of surgical enhancements, and the influence of media promoting idealized beauty standards. The evolution of cosmetic procedures allowed individuals to undergo transformations that were previously not feasible, leading to a burgeoning industry.

During this time, significant innovations in anesthetics, surgical tools, and techniques contributed to safer and more effective procedures. The growth of the beauty and fashion industries also played a crucial role, as public figures and celebrities began openly discussing their cosmetic procedures, helping to normalize and popularize the practice. As a result, cosmetic surgery became more accessible to the general public, solidifying its status as a common option for altering one's appearance.

The other practices mentioned, while relevant in beauty and skincare contexts, did not witness the same level of mainstream transformation and acceptance during the twentieth century as cosmetic surgery did.