Vitamin String Quartet Tribute to U2’s No Line on the Horizon

NUTRIENT SUPPORT FOR HAIR SKIN AND NAILS Hair skin and nails all contain the fibrous protein keratin which is rich in sulfur containing amino acids especially cysteine. Keratin is a filament forming protein whose molecules are entwined around each other in long filaments that are cross linked by bonds between the sulfur atoms. This twining and cross linking is dependent on various nutrients and gives the keratin structures their strength. *

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