Although rosemary tea is not widely known ... and even ointments or infusions to support hair growth and skin health and reduce inflammation associated with arthritis or rheumatism.

For Alzheimer’s in particular, a January 2025 study in mice linked a compound found in rosemary to boosts in memory, more neuron synapses, reduced inflammation, and greater removal of toxic proteins ...

The best way to do this is to patch test. Take a drop or two of the rosemary oil and apply it to the skin behind your ear. If you don't experience irritation, you can apply it to your scalp.

Just remember to discuss the cause of your hair loss with a dermatologist before trying an at-home treatment like rosemary oil. “Others with more sensitive skin may want to use rosemary oil with ...