Forgive me for not reading through the previous posts. Here's my specualation as to why this is so.
To find a cure takes a lot of time, money and research some of which is more difficult than others (take cancer and aids for example, treatment is getting better but still no cure). Furthermore a lot of this research that goes into finding cures makes little or no profit with the exception of treatments made for pharmaceutical use.
Stem cell research, gene theraphy and new drugs may get government and charity funding to reduce the risk of making a profit loss to attain something for the greater good.
Hairloss on the otherhand is not seen as life threatening and whilst a cure would have the potential to make billions its not seen as serious enough for government and charity funding. Which brings us down to the only available option, investors and shareholders. Now considering how many companies go under with research into something that looks promising but fails to deliver intercyx for example. Investors are wary of the risks involved with investing in something that doesnt guarantee an end product. After all its no good researching something if there's no money to be made. Bills need to be paid and an end product is needed to accomodate the money spent researching and investing.
It would take a lot of money and risks to find a cure for the investor and its these things that hold the number of investors back from investing. Its this reason a lot of trials are publically anounced on the results of hairloss treatments like histogen with its completion of phase 1. Results like those attract investors to give the company the funds to carry on there research.
More investors means more money. More money means more staff and equipment. More staff and equipment improves the chances of having enough things to see the research have an end product to make a profit from without running out of money. Which would result in a loss and destroy investor confidence in pursuing a hairloss cure.
Its for these reasons some companies may make temporary solutions like drugs to stem hairloss until a cure is found. At least this way money can be made to fund the research. Look at some of histogens products.
Its for these reasons finding a cure is so slow. For now we will just have to settle for improved treatments until we find that cure.