It's important to approach any given endeavour with a degree of scepticism but it's particularly important when shopping for hair loss treatments. The market is long on overblown claims and short on substance. This does not mean you should abandon all hope - a number of products have survived scientific scrutiny.
One of the most robust studies to date is a review published in the Journal of the American Academy of Dermatology (JADD).
Researchers evaluated the effectiveness of three non-surgical treatments for male pattern baldness.
Male pattern baldness is a permanent type of hair loss that usually runs in the family.
Dihydrotestosterone (DHT) - a potent form of testosterone - contributes to male pattern baldness.Insurance Loans Mortgage Attorney Credit Lawyer
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Treatment: Minoxidil, finasteride, and low-level laser light therapy are backed by evidence (Image: Getty Images)
The study researchers evaluated how successfully three non-surgical treatments blocked this process.
The treatments were low-level laser light therapy, minoxidil and finasteride.
Low-level laser light therapy — also referred to as red light therapy and cold laser therapy — irradiates photons (tiny light particles) into scalp tissue.
In theory, these photons are absorbed by weak cells to encourage hair growth.
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Minoxidil and finasteride are the main drug treatments for male pattern baldness.So, what did the researchers find out?