Question about an ingredient in dandruff shampoo?

what is pyrithione zinc in dandruff shampoo?? can this ingredient cause hairloss??Question about an ingredient in dandruff shampoo?
Zinc pyrithione is best known for its use in treating dandruff and seborrheic dermatitis. It also has antibacterial properties and is effective against many pathogens from the streptococcus and staphylococcus class. Its other medical applications include treatments of psoriasis, eczema, ringworm, fungus, athletes foot, dry skin, atypical dermatitis, tinea, and vitiligo.





Zinc pyrithione is approved for over-the-counter topical use in the United States as a treatment for dandruff. It is the active ingredient in several anti-dandruff shampoos such as Head %26amp; Shoulders. However, in its industrial forms and strengths, it may be harmful by contact or ingestion.