49 citations,
January 1991 in “Food and chemical toxicology” Different zinc compounds cause varying levels of skin irritation in animals.
16 citations,
May 2017 in “Journal of cosmetic dermatology” An unhealthy scalp can damage new hair, but using ZPT shampoo can improve hair health.
43 citations,
October 2002 in “International Journal of Cosmetic Science” All three shampoos reduced dandruff and hair loss, but ketoconazole and piroctone olamine also made hair thicker.
3 citations,
January 1985 in “Drug development and industrial pharmacy” Additives like ethanol and propylene glycol increase the release of zinc pyrithione from shampoo.
September 2024 in “Sasambo Journal of Pharmacy” The optimal pomegranate leaf extract shampoo formula effectively combats dandruff without causing hair loss.