Tip question #2: When you tip the hairdresser a holiday tip, is her regular tip included or extra?

I pay about 65 bucks to the colorist for coloring my hair. I normally give her about $10 tip. If she washes my hair, I give her $5 extra but usually someone else washes my hair, in which case I give that to them.

It’s standard to give the cost of one service as a holiday tip.

When I go to her in December, should I give her the regular tip plus the holiday tip or just $60?

Last year I gave the hairwashing girl $20 as a holiday tip.