Long-term oily scalp accompanied by hair loss are not mutually exclusive causes, but rather a progressive causal chain of "upstream triggers - downstream pathological results": DHT is the core upstream cause of the "oil-hair loss symbiosis," while hair follicle pathway dormancy is the direct pathological manifestation of DHT acting on the hair follicles, and also the direct terminal link of hair loss and thinning.
DHT: The Common Upstream Driver of Oily Scalp and Hair Loss The most common combination of "oily scalp + hair loss" in clinical practice is essentially a typical manifestation of androgenetic alopecia (seborrheic alopecia), and the core driving force is dihydrotestosterone (DHT).
In the human body, testosterone is converted into DHT by type II 5α-reductase in the scalp. DHT acts on both hair follicles and sebaceous glands: on the one hand, it directly stimulates the proliferation and increased secretion of sebaceous glands, significantly increasing scalp oil production and leading to a chronically oily scalp; on the other hand, for hair follicles carrying genetic susceptibility genes, DHT binds with high affinity to androgen receptors on the follicle, continuously inhibiting the proliferation of hair follicle stem cells, shortening the anagen phase and prolonging the telogen phase, promoting the gradual miniaturization of hair follicles-coarse terminal hairs slowly degenerate into fine vellus hairs, ultimately preventing the growth of healthy hair.
In short, oily scalp and hair loss are not a causal relationship of "oil causing hair loss," but rather two parallel results produced by DHT acting on both sebaceous glands and hair follicles.
Hair follicle pathway dormancy: the direct terminal stage of hair loss.
The hair follicle growth cycle is precisely regulated by multiple signaling pathways, including Wnt/β-catenin and TGF-β. Only when these pathways are normally activated can hair follicles maintain the anagen phase and continuously grow new hair. When key signaling pathways are inhibited and the anagen phase cannot be initiated normally, the hair follicle enters a continuous resting state, commonly known as "hair follicle pathway dormancy."
In the process of androgenetic alopecia, DHT directly causes hair follicle pathway dormancy by inhibiting the activity of core signaling pathways such as Wnt, blocking the transition of hair follicles from the resting phase to the anagen phase. In addition, factors such as prolonged sleep deprivation, mental stress, rapid weight loss, and nutritional deficiencies can also independently interfere with the hair follicle signaling rhythm, causing hair follicles to enter the resting phase in batches. However, this type of hair loss is usually not accompanied by long-term, stubborn increased scalp oiliness.
Quickly Identify the Core Problem:
If you have consistently oily scalp, accompanied by a receding hairline, progressively thinning and softening hair on the crown, a widening parting, and a family history of hair loss, the core cause is DHT-mediated follicle sensitivity, with follicle dormancy being an intermediate pathological step in this process.
If oily scalp is not severe, but you suddenly experience significant hair loss in a short period, with clear triggers such as recent lack of sleep, high stress, dieting, or postpartum, it's more likely a simple case of follicle dormancy (telogen effluvium), with a lower correlation to DHT.
Logically, blocking DHT cuts off the source of damage upstream, while activating follicle signaling pathways awakens dormant follicles at the terminal level. Only by combining both can you more effectively improve oily scalp and hair loss problems.
Shaanxi Lv Ke Chun Yuan Biotechnology Co., Ltd
Our address
Huaxia Yue World, Weibin District, Baoji City, Shaanxi Province
Phone Number
+86-13571783771
sales01@lucynatural.com
