What is an appropriate tip for a haircut?

What is an appropriate tip for a haircut?
If you are getting your hair done for the first time by someone new, tipping 15% is absolutely ok. If you've developed a relationship with your hairstylists, we suggest you tip at least 20%, even 25%. While it may seem like too much, your hairstylist spends 1-2 hrs on your hair, they deserve a proper thank you!

Reference:
Tipping 101: How to properly tip at your salon - AOL Lifestyle
Jan 7, 2016

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