Rosacea

Rosacea is fundamentally a condition of mitochondrial inefficiency and tissue hypoxia, driven by systemic energy failure rather than a primary skin disease. 2 Peat argued that the visible vascular dilation, fibrosis, and hyperplasia characteristic of rosacea result from a mismatch between energy supply and energy demand in the affected tissues, causing cells to secrete signals like adenosine and lactic acid that trigger vasodilation and angioneogenesis. 2 The proliferation of blood vessels is a compensatory attempt to deliver more oxygen to energy-depleted cells, but this becomes a vicious cycle as the thickened, fibrotic tissue further impedes oxygen delivery. 2

The central nutritional deficiency Peat identified was riboflavin (vitamin B2), an essential component of mitochondrial respiratory enzymes that is extremely sensitive to destruction by blue and ultraviolet light. 2 He documented a striking case of a man whose bright red nose, cheeks, and halting speech resolved within hours of intravenous B-vitamin injections, only to return fully over a weekend without them; a decade later, he had developed rhinophyma and required heart valve replacement. 2 Peat emphasized that once mitochondrial damage occurs from riboflavin deficiency, the tissues may require more than the normal amount of the vitamin to function properly, and that the enlarged, invasive blood vessels will not necessarily regress even with prolonged supplementation. 2 He also noted that vitamin K and coenzyme Q10 interact closely with riboflavin in regulating mitochondrial metabolism, and that other B vitamins are affected when riboflavin's actions are disturbed. 2

Beyond riboflavin, Peat implicated several systemic factors. Bacterial endotoxin (lipopolysaccharides) absorbed from the intestine acts as a ubiquitous source of inappropriate excitation and energy depletion, and intestinal stimulation to speed transit has been observed to immediately relieve rosacea symptoms. 2 He rejected the notion that cathelicidin or other defensive proteins are the cause, likening that reasoning to saying pus is the cause of boils; rather, nutritional deficiencies lead to excessive exposure to endotoxin and nitric oxide, which drive the vascular leakiness, angiogenesis, and fibroblast stimulation. 4 Estrogen excess was also identified as a likely hormonal contributor, particularly given the higher incidence in women aged 30 to 50, a period when estrogen levels are often pathologically elevated rather than declining as commonly believed. 2

Peat distinguished between therapeutic agents that address the underlying energy defect and those that merely suppress symptoms. Niacinamide (not nicotinic acid, which releases histamine and serotonin) was among the anti-inflammatory nutrients he recommended, alongside riboflavin and glycine. 2 Caffeine, by increasing cellular energy efficiency and opposing adenosine, can inhibit the vasodilation, angioneogenesis, and fibrosis central to rosacea progression. 2 He noted that antibiotics like tetracycline, while historically used for presumed infection, actually help through their anti-inflammatory actions rather than germicidal effects. 1 Danny Roddy has observed that many individuals have found antibiotics useful for learning more about their condition, mentioning tetracyclines, macrolides, and penicillins as options discussed with Peat. 8 Peat also reported that delicate red blood vessels and varicose veins could disappear completely after using thyroid and oral DHEA, indicating that restoring systemic energy metabolism can reverse vascular tone loss. 7