March 5, 2011
Not to be confused with Beau's lines (which are horizontal grooves), longitudinal grooves are vertical grooves that are caused by trauma to a specific area of nail growth.
February 1, 2000
Your questions answered! What causes fungus, what to do about brittle nails, and more.
June 1, 1997
The Nail Doctor tackles your pressing questions on nail injuries and arthritis.
A Light Finish: The Latest in LED Gel Lamp Technology27 photos
Cosmoprof North America 201574 photos
The thin line of skin at the base of the nail that extends from the nail wall to the nail plate.
What’s the cause of the pinkish-red oval area on the pad of my client’s toes?
Am I losing my touch applying acrylics?
Should I have a TV in my salon?
Is perfectionism on the job a blessing or a curse?
What’s the best way to recruit techs for a new salon?
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How big is the U.S. nail business? $7.3 billion. What's the average service price for a manicure? Dig into our decades' deep research archives.
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