Breakthrough claimed in hair loss treatment

https://www.healthline.com/health-news/microrna-breakthrough-hair-loss-treatment

I am always skeptical.  This is a new idea, that stiff hair causes balding, and softening the hair can address the balding problem.  The hairs above the surface of the scalp, are already dead. Treatment below the skin, as the new hairs are being formed, would be necessary if this theory made any sense.  We have seen developing hairs that are miniaturized, most of these hairs become soft because they lose bulk.  I have oversimplified the premise, but you should read it to draw your own conclusions.