I was getting a haircut when the owner asked me for advice on her work station power. She had 2 duplex outlets mounted in the front of the cabinet with a 15amp breaker switch like you see on a power strip. It was fed by a 16 gauge "so" type cord plugged into an outlet mounted in the bottom of the cabinet. This recp. was fed by a 20A breaker. This setup was causing overheating and tripping problems of the breakers. I advised her that I would replace the cheap modular outlets with 2 20A recptacles and feed them with a GFCI since this is located right next to her sink, within a couple inches. I also told her that the wire from the box in the bottom of the cabinet must be rated for 20A. Does that sound like a good solution for this problem?

Depending on what hair tool and appliances she has at each station, you may want to have more than one 20 amp circuit there.

Is the 15amp or 20amp breaker overheating and tripping?

It is perhaps reasonable for her workstation to have a dedicated 20amp circuit. Perhaps a #14 or #12 cord would reasonable.

If the 15amp breaker is overheating it might be sufficient to just remove that breaker.

ok i will throw my experince with it i have it not too long ago working a saloon centere what i did i ran 20A crks for each work station but this area i working the sink is on one side of wall the work staion is other side of wall and it is over 15 feet apart so i plan not to use the gfci but i got smart i decide to use the gfci for saftey reason and the power strip i advised them to use super hevey duty industrail grade device to advoid over heating and the wire i ran from breaker box to device outlet i use 12 or 10 depend on legnth ( half use 12 other half use 10 ) and the one work station have 2 duplex gfci outlet (have own crks .) and work super never blew breaker at all even they ran super powerfull hairdryer

merci marc