Before one can start to answer this, it is important to get the correct diagnosis of the type hair loss. Not all hair loss is androgenetic in nature, so purchasing products online for hair loss is not sensible and in some cases, can make the hair loss worse.
The type of hair loss determines the type of treatment that needs to be started.
There are numerous types of hair loss, some of which are: androgenetic hair loss, scarring hair loss, non-scarring hair loss, acute hair loss (Telogen effluvium), systemic related, medicine related hair loss. Within each of these categories, there are sub-categories.
Treatment for Androgenetic hair loss (male pattern and female pattern hair loss) differs from treating scarring hair loss like Lichen pilanopilaris which differs from non-scarring Alopecia areata. In some cases, starting the wrong treatment can make the condition worse.
Licensed treatments for hair loss include Minoxidil, Finasteride. Steroid injections, topical steroids, DMARDS (disease modifying drugs), JAK inhibitors are some of the first line treatments for Alopecia areata. PRP (platelet rich plasma) and Low Light Laser therapy tends to be 2nd – 3rd line treatments. One has to factor in natural patient variability where a treatment for one person doesn’t work successfully for another.
Also, at times hair growth by using medication cannot keep up with the rate of hair hair loss (as in aggressive alopecia). Therefore, treatment has to be individualised and monitored if adjustments are needed. The best hair loss treatment is one that is started after correct diagnosis and is individually suitable.