It seems, as per MENSCRIPT the online health clinic that is specialized in providing online treatments for hair loss throughout the United Kingdom and the Netherlands the answer is no.
The health clinic online conducted an investigation into the research of saw palmetto and loss of hair, and found that the majority of studies recommended by their manufacturers for “proof” of the effectiveness were believed to be financially funded by the business.
They found that despite saw palmetto being touted on the internet to be an effective remedy against hair loss it does not significantly reduce the amount of DHT (dihydrotestosterone). A hormone believed to be the reason behind male hair loss.
They also found for example that DHT inhibition that is commonly discussed is very low and does not have any clinical value in stopping the loss of hair. Finasteride is for instance, 18.000 times more effective in blocking enzyme type II when compared with Saw Palmetto.
The reason that Saw Palmetto is still regarded as a potent DHT blocker today appears to be mostly because of the public relations team that runs Permixon. Permixon brand. The brand is that is owned by Pierre Fabre Laboratories; a pharmaceutical company which published two studies in 1984 and in 1996 which were carried out by their own research team as well as the research facilities they own which is the Centre de Recherches Pierre Fabre
A study conducted in a laboratory where cells were exposed very high levels of saw palmetto which could have ruined their function as cells. According to MENSCRIPT, it is clear that the claims of hair loss are bogus and mostly used to stimulate sales for the company that is behind it.
You can read the full analysis on their website Saw palmetto for hair loss: popular but ineffective