I feel like I am truly learning something here today because apparently there is such an injection as a nipple injection that has been inspired by Kendall Jenner according to Health.
What are nipple injections? They are cosmetic fillers that are injected into the nipple to make sure the "nipples stay firm and perky for about two years."
It does come with risks of "vascular occlusion" - filler goes into blood vessel accidentally. Most people will experience irritation and discomfort after the procedure but usually goes away.
These procedures according to Health have risen by 20% in the last couple of years! But why do this? So you can go braless... but is it worth it? It does cost at least $700+!