Men's Health Insider

Experience The Power of Capsaicin

The first thing a man with erectile dysfunction does is nothing. He does not book an appointment. He does not tell his wife what is actually happening. He does not mention it to his physician. He waits. He finds a reason — the stress of the quarter, the late nights, the wine at dinner — and he holds onto that reason because the alternative requires a conversation he does not know how to start. And because the reason is always available, and always plausible, and always easier than the truth, the thing that is actually happening continues happening without anyone ever addressing it. I have been a specialist in sexual medicine for 21 years. I trained in Germany, where this field is taken more seriously than it is here, and where the conversation between a physician and a patient about sexual function is treated as the cardiovascular conversation it actually is rather than the embarrassing sidebar it tends to be in an American clinical setting. I came to the United States in 2009 and I have spent 17 years watching men redefine normal in ways that their counterparts in Germany would not have been permitted to do — because the German physician sitting across from them would have named what was happening, explained the mechanism, and refused to accept that declining sexual function and rising blood pressure and a cholesterol panel that keeps shifting are three separate problems managed by three separate departments. They are not three separate problems. I want to explain what they actually are. But first I want to tell you about the 14 months between my 51st birthday and the morning I finally ran my own workup and stopped redefining normal. My name is Dr. Thomas Kessler. I am 53 years old. I specialize in male sexual medicine and vascular sexual health. I have treated erectile dysfunction as a primary vascular diagnosis — not a psychological condition, not a hormonal condition, but a vascular one — for my entire career. I have published on the relationship between endothelial function and erectile capacity. I have lectured on the cardiovascular significance of ED onset in men over 45. I have told more men than I can count that their declining erections are a blood vessel problem and not a confidence problem and not an age problem and not a stress problem. I had been redefining normal for 14 months before I gave that speech to myself. My erections had become unreliable in 2023. I attributed this — with the specific, practiced fluency of a man who knows exactly what language to deploy against himself — to the transition of my practice, to the hours, to a difficult year personally, to being 51. I had all of the clinical knowledge and none of the clinical honesty that I would have applied immediately to a patient presenting with the same history. My wife said nothing. She is German, like me, which means she is direct about most things but understands that there are certain conversations a person must arrive at on their own schedule. She waited. She gave me 14 months. And then one evening she said, with the particular precision of someone who has chosen their words carefully over a long period of time, that she felt we had been living alongside each other rather than with each other, and that she wanted to understand why. I went to my office the next morning and ran the workup I had been not running on myself for 14 months. The Doppler was unambiguous. Reduced peak systolic velocity in the bilateral cavernosal arteries. Impaired hemodynamic response to pharmacostimulation. The arterial inflow pattern of a 51-year-old man whose endothelium had been under sustained inflammatory assault for years. I looked at the printout for a long time. Then I looked at my last cardiometabolic panel. LDL 158, up from 129 three years earlier. Triglycerides 204, up from 168. Blood pressure averaging 141 over 89, up from 124 over 81. Fasting glucose 103. Trending. Four markers. All moving in the same direction over the same period. Alongside the erectile function decline I had been redefining as normal. I have been lecturing on this correlation for 17 years. I had not applied it to my own data for 14 months because I was too busy redefining normal. Let me explain what all of these markers share, because it is the explanation I should have been starting every patient consultation with for two decades and have instead been burying at the end after the prescription has already been written. The innermost lining of every blood vessel in your body is a single continuous sheet of cells called the endothelium. When these cells function correctly, they express an enzyme — eNOS, endothelial nitric oxide synthase — that produces nitric oxide continuously. Nitric oxide is the molecule that tells the surrounding smooth muscle of the vessel wall to relax. When nitric oxide production is adequate, vessels stay open without external override. Blood pressure is controlled from within the wall. LDL particles passing through the arterial space do not adhere to the wall surface and build plaque. And when sexual arousal occurs, the rapid high-volume arterial inflow that fills the corpora cavernosa and produces an erection proceeds exactly as it was designed to. When the endothelium is damaged — by the chronic low-grade inflammation that accumulates across decades of metabolic stress, by elevated triglycerides oxidizing the vessel wall, by the sustained hemodynamic pressure of blood pressure that has been creeping without being addressed at the source — eNOS expression falls. The vessels lose autonomous tone regulation. Blood pressure rises. LDL catches against an inflamed wall and builds. And the helicine arteries — the finest diameter vessels in the male body, the ones feeding the corpus cavernosum — constrict and lose the capacity for the rapid inflow an erection requires. The erectile vessels fail first not because something is specifically wrong there but because vessel failure presents first where vessel diameter is smallest. The same endothelial dysfunction that is producing the unreliable erections is producing the rising blood pressure and the LDL that keeps climbing and the triglycerides that your internist watches and calls a trend. These are not separate conditions. They are one endothelium expressing one failure across four readouts simultaneously. The Viagra your GP prescribed amplifies whatever nitric oxide signal the endothelium is still producing. When eNOS function is relatively preserved, the amplification is clinically useful. As eNOS expression continues to fall with progressive endothelial deterioration, the signal being amplified diminishes. This is the pharmacological explanation for why the PDE5 inhibitor that worked at 51 works less reliably at 55 and unreliably at 58 — not because the drug has changed but because the eNOS signal it depends on has continued to fall. Amplifying a disappearing signal does not slow its disappearance. It masks the disappearance while the underlying pathology continues. Your cardiologist's statin reduces hepatic LDL synthesis. It is not designed to reduce the endothelial inflammatory burden that determines whether LDL particles are dangerous when they enter the arterial wall. Your antihypertensive overrides vessel constriction from outside. It is not designed to restore the eNOS-driven autonomous vessel relaxation that would control blood pressure from within. Three prescriptions managing three outputs of one upstream failure. None of them repairing the source. I spent two months reading the endothelial repair literature the way I should have been reading it 17 years ago when I was publishing adjacent to it rather than inside it. The research points consistently to one receptor. TRPV1 — transient receptor potential vanilloid 1. A calcium-permeable ion channel expressed in endothelial cells, vascular smooth muscle, and perivascular neural tissue throughout the body. When activated at therapeutic capsaicin concentration, TRPV1 drives a repair cascade. SIRT1 rises — the deacetylase that protects endothelial cells against oxidative-stress-driven senescence. p21 falls — the cyclin-dependent kinase inhibitor mediating endothelial cell cycle arrest. eNOS activates — producing nitric oxide from within the repaired cells themselves rather than from an external precursor or a compensatory pharmaceutical mechanism. The compound activating TRPV1 most reliably is capsaicin. The active molecule in cayenne pepper. I tested three products before I found one that worked. All three failed on the same variable. Capsaicin is highly lipophilic. In a dry powder capsule, without a lipid carrier to facilitate absorption at the intestinal mucosa, it enters the portal circulation and is cleared by hepatic CYP3A4 before reaching the systemic endothelial beds where TRPV1 sits. Bioavailability from powder capsule delivery is approximately 4% of the dose. The receptor never receives therapeutic concentration. The repair cascade never initiates. The man concludes that cayenne does not work. What he experienced is cayenne that was cleared before it arrived. A colleague in clinical pharmacology identified one product formulated around the correct pharmacokinetic requirements. Aurivita Cayenne Pepper. A resealable pouch — 60 softgels per bag, 30 servings. Capsaicin from 30,000 peppers per serving dissolved in cold-pressed avocado oil — oleic acid rich, anti-inflammatory, enabling chylomicron-mediated lymphatic absorption that bypasses hepatic first-pass metabolism. Not soybean or sunflower oil — both high in linoleic acid, both upregulating the arachidonic acid inflammatory pathway, both counterproductive in a formula targeting vascular inflammation. BioPerine — standardised piperine — inhibiting CYP3A4 and P-glycoprotein to extend capsaicin plasma half-life from approximately one hour to a duration that allows meaningful TRPV1 receptor occupancy and intracellular cascade propagation. Vitamin K2 — menaquinone-7 — activating Matrix Gla Protein to reverse arterial calcium deposition independent of LDL management. Vitamin D3 for endothelial structural support. Third-party tested per batch. Certificate of Analysis published. Made in the USA. I started the protocol the week after running my own Doppler. Week one. By day four the background sympathetic tone I had normalized over years of progressive endothelial dysfunction began to ease as systemic nitric oxide production started restoring. I slept from 10:45 PM to 6:20 AM on day six without interruption for the first time I could specifically recall. Week two. Cognitive clarity through afternoon clinic sessions that had previously required considerable effort to sustain. The mechanism was straightforward — improved cerebral microvascular perfusion as endothelial function restored in the smallest cortical vessels. Week three. I am a physician and a researcher. I will state this with clinical precision and without unnecessary circumlocution. The morning erections returned. Every morning. Automatically. Without the conditions and the circumstances and the negotiations with probability that had replaced them over the preceding 14 months. I noted this in my protocol log as: cavernosal arterial inflow restored. Consistent with TRPV1-mediated eNOS upregulation in helicine endothelial cells. Proceeding to week four tracking. What I noted in a separate document that I did not put in any clinical record is that I sat with it for a few minutes before I got up. Because 14 months is a long time to redefine normal. And the return of the old normal, when it came, was worth sitting with. Week four. Blood pressure 122 over 76. Down from 141 over 89. Same antihypertensive dose. Week six. Follow-up Doppler. Peak systolic velocity in the cavernosal arteries normalized. Hemodynamic response to pharmacostimulation restored to the 45-year-old reference range. Endothelial function pattern no longer showing the dysfunction pattern from the baseline study. Week ten. Cardiometabolic panel. LDL: 109. Down from 158. Triglycerides: 131. Down from 204. HDL: 52. Up from 38. Fasting glucose: 87. Down from 103. Blood pressure: 119 over 73. My cardiologist — a thorough man who does not say things he does not mean — looked at the panel and said: this is not what I expected to see. I told him what I had done. He asked for the research. I sent it. He has since started asking his own male patients with concurrent ED and cardiometabolic decline about their endothelial function rather than their testosterone levels. That is progress. I have recommended Aurivita to 19 of my own patients since starting the protocol. Men 44 to 66. All presenting with progressive vascular ED alongside the cardiometabolic cluster — rising LDL, rising blood pressure, rising triglycerides, declining energy — being managed in separate clinical silos with separate prescriptions. Seventeen have returned with data. Fifteen of seventeen reported the same sequence. Improved sleep in week one. Improved energy and cognitive clarity by week two. Return of reliable morning erections by week three. Cardiometabolic panel improvement confirmed at week ten. Fifteen men who stopped redefining normal. Every one of them said some version of the same thing at their follow-up. I did not realize how much I had adjusted to it until it changed. This is the particular damage that progressive endothelial dysfunction does that no lab value captures. It does not announce itself. It revises the standard. It makes the diminished version feel like the accurate version until the original version returns and a man sits with it for a few minutes before he gets up and understands what he had accepted as permanent. You have been revising the standard. Your blood pressure has been climbing. Your LDL has been climbing. Your triglycerides have been climbing. Your morning function has been declining. Your energy has been flattening. And you have been finding reasons for all of it — good reasons, plausible reasons, reasons that a physician who did not know better would not challenge — because redefining normal is easier than addressing the thing that is making normal change. I know. I did it for 14 months. With 21 years of training that should have made me the last person to do it. Try a pouch of Aurivita for 120 days. Track your morning function from day one. Get a full cardiometabolic panel before you start and again at week ten. Show your physician the data. Let the panel tell the story the reasons have been covering. If your morning erections have not returned by week three, if your panel has not moved at week ten, if your energy and blood pressure and cholesterol have not shifted — return the pouch. Every dollar back. No questions. No forms. My wife asked me recently what changed fourteen months ago. Not because she does not know that something changed — she knows. But because she wanted to hear me say it. I told her I stopped redefining normal. She said that was enough. It is enough. 👉 https://aurivita.co/pages/erectile-dysfunction-ldp ~ Dr. Thomas Kessler Sexual Medicine and Vascular Sexual Health, 21 years P.S. — Do not stop any existing medication on your own. Every adjustment to my own prescriptions was made under my cardiologist's supervision based on what my panel data showed at each interval. Bring the Aurivita ingredient list to your next appointment. Ask your physician if they see any pharmacological interactions with your current regimen. Then track your markers for 120 days and allow the data to make the clinical argument. P.P.S. — The dry powder capsule versions of capsaicin available online fail on the same pharmacokinetic variable. Hepatic CYP3A4 clears the majority of the active compound before it reaches systemic endothelial beds. Without lipid-based delivery enabling chylomicron-mediated lymphatic absorption, the TRPV1 receptors in your vessel walls receive a fraction of therapeutic concentration. Without BioPerine inhibiting clearance enzymes, even correctly delivered capsaicin does not maintain plasma levels adequate for sustained receptor occupancy. Without K2, arterial calcium deposition continues independent of LDL management. Aurivita comes in a resealable pouch — 60 softgels per bag, third-party tested, Certificate of Analysis published, made in the USA. That is what normalized my Doppler and my panel. The alternatives failed on delivery. P.P.P.S. — If you arrived here for the erectile function and stayed for the blood pressure and the cholesterol and the triglycerides and the energy — that is not incidental. It is one eNOS deficiency expressing itself across multiple vascular beds simultaneously. Your cardiologist is managing one output. Your GP is managing another. Your urologist, if you have seen one, managed a third. The endothelium producing all of them has not been addressed by any prescription in your current regimen. That is the gap. That is what Aurivita is formulated to address. That is why the markers move together when the cellular repair finally begins.