Shampooing

To boost sheen:

"Avoid washing your hair under really hot water," says Nancy Hamm, product development manager for Pantene. Hair absorbs water more readily at high temperatures. This excess moisture swells the hair shaft, and over time can cause the formation of tiny fissures in the surrounding cuticle that hinder light reflection.

The lower the pH of your shampoo, the more acidic it is and the more it will close the cuticle  which is the key to super shine, says New York salon owner Mark Garrison. A good way to determine pH level is to test-drive a trial size. If it leaves your hair feeling squeaky-clean and tangly, steer clear chances are it's not a low-pH product.

Those with thick, coarse or chemically processed hair benefit from shampoos labeled "moisturizing" because the extra emollients they contain coat the cuticle, making it lie smoother. People with thin or fine hair should go for deep-cleansing shampoos (such as Neutrogena Deep Clean) to remove shine-dulling grease. Daily-use products are best for those with normal hair (try Clairol Daily Defense Shampoo for Normal Hair).

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