There’s Victorian funeral hair jewelry that still exists so a long god damn time under the correct conditions. Now, most of that has been sealed off from the air

Real hair wigs seem to last from about 6 months to 2 years from what I looked at.

www.dsoarhair.com/blog/how-long-do-human-hair-wigs-last/

shop.mayvenn.com/blog/hair/how-long-do-wigs-last/#:~:text=Generally%2C%20human%20hair%20wigs%20last,last%20up%20to%20six%20months.

I’d imagine this hairstyle is probably a once and done thing. Maybe a few weeks.