Willy, ...............dont you mean sebum when you say "waxy buildup"?
Eating higher amounts of saturated animal fats have seen the Japanese have larger sebaceous glands that produce more sebum (and much more post WWII baldness). Sebum contains DHT. It can be reabsorbed back through the scalp for a fresh attack on the follicle. We secrete a bunch of it and it is what makes our hair oily. Look at your pillow after you take your pillow case off. Its proboably covered in a faint yellow film if its a year old or so. THis is absorbed sebum which has DHT. Armando Jose, a Spainish chemist, has a website called againstalopeciaandbaldness.com that postulates that an interruption in sebum flow that causes sebum to flow inward, down the root sheath into the papilla, interrupting the flow of stem cells from the root sheath in early anagen (when follicles enlarge) is the initial cause of common baldness. He claims we keep donor area hair because sebum is drained there resting on our pillows every night.
Its his theory that the sebum that builds on the follicle can get under the papilla, interfereing with the capillaries that feed the follicle. The sebum gets rancid (rotten) and contains microorganisms. The spoilt sebum elicits an immune system response from the body resulting in super oxides arriving to try to kill the bacteria and fungi in the sebum end up damaging the follicle irreversibly and ending in fibrosis (hardening of collagen) around the follicle, and inflammation with microinfection of the spoilt gunk in our philosebaceious units (hair follicles). This is only theory. But its interesting as Aramondo is a smart guy.