Dear Doctor,
regarding the use of zinc together with minoxidil. Please note at the end of this page (HairLossFight.com):
“There are studies in regards to the use of topical zinc. However, zinc will form insoluble salts when it reacts with minoxidil/azelaic acid, rendering all of the ingredients ineffective.”
The above email was received in response to Can Zinc Block Minoxidil?. Thanks for sending this in.