Mayyven is a good example of a startup building for a massive market (the hair extension industry is $5B in the U.S.) that many people aren't familiar with because they're not the consumer.
I, too, have always wondered about the answer to this question. Hair extensions are very strong and thick. Here https://lifeofhair.com/source-great-lengths-extensions/ you can read more about what kind of hair they use in Canada for hair extensions. Personally, I didn't even know about that. Very interesting.
The best part about hair extensions is how easy they are to style. Whether it’s sleek and straight or curly and voluminous, they give my hair that extra wow factor!
Product Hunt