Glossy red nails look classic in every decade. For a younger look, experiment with a textured manicure by applying one coat of red polish over your client's dry polish. And for women of all ages, a good tip is to keep attention-getting red nails short and hands well moisturized.

Harper's Bazaar suggests Lancome's Bang Bang Red, a polish that suits all skin tones and glides on smoothly, and OPI Nail Lacquer in Red Shatter.