PMC 8719286
It works through multiple mechanisms, increasing blood vessel formation around follicles, reducing inflammation, stimulating collagen synthesis in the dermal papilla, and blocking 5-alpha reductase, the enzyme that converts testosterone to the follicle-damaging DHT
Lipids 42 , 10851092 (2007)
Animal and test-tube studies indicate that they also affect tissue repair and wound healing ( Chapped lips are a common symptom of deficiencies, especially in folate (vitamin B9), riboflavin (vitamin B2), and vitamins B6 and B12 ( People with disorders that affect nutrient absorption such as celiac disease, chronic gastritis, and Crohns disease are especially susceptible to deficiencies ( Given that vitamin B12 is found primarily in animal products, vegans and vegetarians may also be at a higher risk of deficiency ( Furthermore, a deficiency in B vitamins may lead to dermatitis, depression, irritability, and fatigue ( summary Deficiencies in multiple nutrients, including iron, zinc, and B vitamins, can cause chapped lips
Structural diversity of axonemes across mammalian motile cilia