Head and Shoulders Shampoo
 (Pyrithione Zinc)



Molar Mass 317.6954 g/mol
Boiling Point About 100°C
Melting Point NA
Freezing Point 1.5°C
Water Solubility Insoluble (<0.1 g/100 mL at 21°C)


Structure of Pyrithione Zinc

Facts about Pyrithione Zinc:

        Pyrithione zinc was first compounded in the 1930's, and its primary function was as an anti-fungal agent. Today, Pyrithione zinc is still seen as an anti-fungal agent because it is the main active ingredient in Head and Shoulders dandruff shampoo, as well as many other dandruff shampoos.  Pyrithione Zinc is a derivative of zinc and acts as an antibacterial agent, as well as the anti-fungal agent to fight many pathogenic microorganisms (streptococcus, staphylococcus).  This ingredient is used to control dandruff and seborrheic dermatitis (inflammation of the skin pertaining to the excessive discharge of sebum or oil).  Pyrithione zinc reduces the itching and flaking of the scalp associated with dandruff, which is an advantage to those who experience these conditions.

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