Rachel Simmons, RN

Please Do Not Buy NAC

Please do not buy liver supplements. I am begging you. Not one more capsule. Not until you have read this. My name is Rachel Simmons. I am a hepatology nurse and I have been doing this for fourteen years. I want to be clear about something before I say anything else. I do not recommend products. My patients will tell you that. When I finally do tell someone to try something, it is because I have watched it work, over and over, for years. Which is why what happened last year bothered me so much. But let me start from the beginning. I spent the first six years of my career in a hospital where we used NAC every single week. N-acetylcysteine. Most people outside of medicine have never heard of it. But in emergency rooms, NAC is the gold standard treatment for acetaminophen overdose. When someone takes too much Tylenol and their liver starts shutting down, NAC is what saves them. The reason is straightforward. NAC is the direct precursor to glutathione, which is the liver's own primary antioxidant defense. Give the liver NAC, and it converts it into glutathione. Glutathione neutralizes the damage. The liver survives. I watched this happen dozens of times. A patient would come in with liver enzymes through the roof, we would start IV NAC, and within hours the numbers would begin coming down. That is not a theory. That is emergency medicine, happening in real time, in front of my eyes. And over the years, as I moved into hepatology and began caring for patients with chronic liver conditions, fatty liver, fibrosis, enzyme levels that crept upward year after year, I started wondering something that changed the direction of my career. If NAC can rescue a liver in crisis, what could it do for a liver under slow, daily, invisible damage? Because that is what fatty liver disease actually is. It is not a sudden event. It is a slow accumulation of fat inside liver cells that gradually overwhelms the glutathione your liver depends on to protect and repair itself. By the time most people feel something wrong, the damage has been building quietly for years. One of my patients, a woman I will call Gloria, spent two full years feeling unwell before anyone found the cause. She went to her GP multiple times. One doctor said it was probably stress. Another suggested perimenopause. A consultant told her it could be anxiety. For two years she lived with exhaustion so deep it changed who she was. She had been the kind of person who organized weekend outings and hosted dinners. She stopped all of it. She withdrew from friends. She had a dull aching pressure under her right ribs that came and went, and nobody could tell her why. Then a scan ordered for something else entirely found fat deposits across her liver. Gloria had never touched alcohol in her life. Another patient, a 52 year old veteran, described her fatigue in words I have never forgotten: "I was just so tired. It was a tired I could not escape, and no amount of sleep helped. People thought I was lazy. I was not lazy. I was absolutely exhausted." She had been dismissed by doctors for years before anyone took her liver seriously. I started reading every published study I could find on NAC and chronic liver conditions. The evidence was consistent enough that I began doing something I had never done before in my career. Quietly, in my office, I started telling patients about NAC. Not as a treatment. Not as a cure. As a daily support they could take alongside, not instead of, whatever their doctor had prescribed. A way to give their liver the raw material it needed to rebuild its own glutathione supply. Back then, NAC was hard to find. My patients had to order it from specialty supplement companies. Most pharmacies did not stock it. But it worked. Over and over, right in front of me. Patients who added NAC to their routine alongside, not instead of, their diet changes and exercise and medical treatment, tended to see their enzyme numbers move in the right direction. Their energy improved. The afternoon exhaustion that every liver patient knows too well became less crushing. For twelve years, NAC was the one product I broke my own rule for. Then, about two years ago, everything changed. NAC was suddenly everywhere. Suddenly, patients were asking me about it before I could bring it up. People walked into my office holding their phones, showing me advertisements for NAC supplements from brands I had never heard of. After twelve years of explaining glutathione from scratch, I did not have to convince anyone anymore. You have to understand what that means in my office. Telling a patient about liver damage is one of the most delicate conversations I have. I am telling someone that an organ they cannot see or feel is quietly failing them, and that nobody, sometimes not even their own doctor, has been paying proper attention. One of my patients put it this way: "None of my doctors ever asked what I was taking, and I did not volunteer it." She had been managing her liver on her own for years, bouncing between products, reading labels in the pharmacy aisle, never once getting a clear answer from a healthcare professional about what was worth trying and what was a waste of money. So when patients started bringing up NAC on their own, it felt, honestly, like a relief. Last year alone, twenty-three of my patients bought an NAC supplement based on my recommendation. I know the exact number because I keep track of everything I suggest. Then the calls started. "Be honest with me, Rachel. Was this supposed to do anything at all?" By the end of the year, eleven of those twenty-three patients had stopped taking NAC entirely. A few told me they felt no different. A few said their numbers had not budged. One woman, who had been following my guidance for six years, said she did not need "this supplement nonsense" anymore and found a new nurse practitioner. Six years of trust. Gone over a capsule that let her down. And I had no answer for her. Same molecule. Same recommendation. Same instructions I had given for over a decade. NAC had never failed like this before. So I did something I had never done in my career. I started calling the ones who would still take my call, and I asked them to bring me what they had bought. The first bottle arrived on a Monday morning. A patient I will call Ruth set it on my desk, still sealed. I opened it, shook a capsule into my hand, and I knew immediately that something was wrong. That capsule was dry, white powder pressed into a hard shell. It looked like every other commodity supplement on the pharmacy shelf. No oil. No protection from air or moisture. Just powder in plastic. The NAC I had been recommending for twelve years was nothing like that. So I did what any nurse who has watched IV NAC save lives in real time would do. I looked at the published research on oral NAC stability. And what I found made me angry. NAC is one of the most unstable amino acid derivatives you can put in supplement form. In a dry capsule, exposed to moisture and air on a shelf for weeks or months, it begins to oxidize. Published research shows that NAC in dry powder form can lose a significant portion of its potency before you ever open the bottle. By the time you swallow it, what you are actually getting may be a fraction of what the label promises. This is known. This is documented. And not one company putting NAC in a dry capsule and selling it for eight dollars a bottle tells you about it. Two more patients brought their bottles in that week. Different brands. Different labels. Different prices. Same dry, white, degraded powder inside. Not one of them had been taking what I had spent twelve years recommending. They had been taking the name "NAC" on a label, with almost none of the function I had seen save lives in a hospital. Here is what they had actually bought. Commodity NAC powder, the cheapest bulk material available, pressed into a capsule with no protection against oxidation, no delivery mechanism to get it past the gut intact, and nothing else to support the liver's repair systems. The NAC that works in a hospital setting is protected. It is delivered in a way that shields it from degradation and gets it to the liver where it can actually be converted into glutathione. A dry capsule sitting on a shelf cannot do that. And here is the part that made me genuinely angry. It is completely legal to sell it this way. Commodity powder, a gelatin shell, the letters "NAC" on the label, and the bottle gets to sit on the shelf right next to products that actually do what they claim. Eleven people trusted me. Swallowed degraded powder for months. Saw no change in their labs or their energy. And decided I was either wrong or a fool. And honestly, they were half right. Not because NAC does not work. It works. I have fourteen years of evidence in my own patient files and thousands of published studies behind me. But I had been saying "take NAC" for twelve years, when I should have been telling them exactly what kind of NAC to look for, how it needs to be delivered, and what else their liver needs alongside it. So I started doing the research I should have done the moment the market exploded. I was looking for a formula that solved every problem I had just uncovered. It needed clinical-quality NAC, not commodity bulk powder. It needed a delivery system that protected the NAC from oxidation and carried it to the liver intact. And it needed something I had been reading about for years but had never found combined with NAC in a single product: NAD+. NAD+ is the coenzyme that powers your liver's cellular repair systems. It activates a protein called SIRT1, which regulates inflammation and drives a process called autophagy, your liver's built-in system for clearing out damaged cells before they become scar tissue. Without adequate NAD+, your liver cannot repair itself fast enough to stay ahead of the damage. Here is the simplest way to think about it. Glutathione is the fire extinguisher. NAD+ is the repair crew that arrives after the fire is out. If both are running low at the same time, the damage does not just continue. It accelerates. I found one formula that combined all three: clinical-quality NAC, NAD+, and MCT oil from coconut. MCT oil does two critical things. It protects the NAC from the oxidation that destroys dry powder in capsules. And because medium-chain triglycerides travel directly to the liver through the portal vein, it carries both the NAC and the NAD+ to the organ that needs them, without being broken down or degraded in the gut first. The formula is called The Vital Labs NAC 600. Each softgel contains 300 milligrams of NAC. The daily dose is two softgels, for a total of 600 milligrams per day. Manufactured under controlled manufacturing conditions. Third-party tested for purity and potency. When I first held that softgel up to the light, I could see the MCT oil inside, amber and clear. And I thought about all those dry white capsules sitting on Ruth's desk, and I understood exactly why they had failed. But a softgel is not a result. So I tested it on myself first. My own ALT had been sitting at 63. My AST at 47. Both elevated. Both heading in the wrong direction, despite the fact that I eat well, exercise regularly, and do not drink. I took two softgels every morning alongside, not instead of, my existing routine. I changed nothing else. Six weeks later I had my blood drawn. ALT: 31. Down from 63. AST: 24. Down from 47. Both back within normal range. My hepatologist reviewed the results and asked what I had changed. I told him about the NAC, NAD+, and MCT oil combination I had been taking alongside, not instead of, everything else. He reviewed the published research behind each compound, checked for interactions, and said he had no objections. He told me something I still think about: "Most of my patients take something. I would rather they take something with evidence behind it." Then I did something I have never done in my career. I ordered twenty-three bags of The Vital Labs NAC 600 and sent them out the same week, to the homes of every patient I had lost. Each one went with a handwritten note. I kept it short. The NAC I recommended is real. The capsule you bought was not. This is the difference. Try it for six weeks alongside, not instead of, whatever your doctor has told you to do, and then have your labs rechecked. Then call me. The first call came twelve days later. It was Ruth. She did not say hello. She said, "My ALT came back at 34. It has not been under 50 in three years." Then she went quiet, and we stayed on the phone like that for a moment, and I did not mind one bit. Within a month, I had heard from fifteen of the twenty-three. One man told me his afternoon energy was back for the first time in years. He was a father of two, 38 years old, and he had been tracking his ALT the way some people track their checking account. It went from 58 down to 35, and then to 20. He told me he felt like he was 25 again. A woman said her doctor reviewed her latest blood work and asked what had changed. She had been on a statin for her cholesterol and was terrified every time her liver tests came back because the numbers kept climbing. After six weeks on this formula, taken alongside, not instead of, her statin and her cardiologist's full plan, her enzymes had settled back into range for the first time since she started the medication. Another patient, the woman who had followed my guidance for six years and walked out, called my receptionist and rebooked her appointment. She did not explain why. She did not have to. Here is the thing about liver damage. Nobody announces it when the numbers start creeping up. And nobody announces it when they come back down. The fatigue arrives quietly, and it leaves quietly. The bloating fades. The brain fog lifts. The afternoon slump stops being the center of your day. But you can see it. My patients walk into my waiting room differently now. They sit up straighter. They stay to chat. They stop apologizing for taking up my time. That invisible weight they carried around for years, the one that made them cancel plans and avoid mirrors and wonder if this is just what getting older feels like, starts to lift. I now tell every patient the same thing. If you are going to take NAC for your liver, you have exactly one job. Make sure it is real. Real means clinical-quality NAC, not commodity powder. Real means it is suspended in MCT oil, not exposed in a dry capsule. Real means NAD+ is included to power the repair systems your liver depends on. And real means it is third-party tested, manufactured under controlled conditions, and delivered in a softgel that carries the compounds to your liver intact. The Vital Labs NAC 600 is the only formula I have found that meets every one of those standards. This is meant to be taken alongside, not instead of, whatever your doctor has recommended. Do not stop prescribed medication. Do not skip appointments. Do not treat this as a replacement for medical care. There is a 60 day money back guarantee, so the test costs you nothing. Take two softgels a day for six weeks. Have your labs rechecked. If your numbers do not move, send it back. I only wish the twenty-three bottles of degraded capsules had come with those terms. So this is me, asking you the same thing I asked at the start. Please do not buy liver supplements. Buy the real thing once, or do not buy anything at all. Fourteen years, and this is the first time I have ever written something like this about a product. But I watched twenty-three people swallow months of oxidized powder and give up on their liver because nobody told them the difference between a capsule of commodity dust and a formula that was actually built to reach the organ it claims to support. If this reaches even one person before they buy another dry capsule off a shelf, it was worth writing. https://thevitallabs.com/nac600-nad Rachel Simmons, RN Hepatology Nursing, 14 Years P.S. If you tried milk thistle before finding this and wondered why nothing changed, you are not alone. One of my patients took milk thistle for six straight months. She told her gastroenterologist about it, followed the dosing on the label, and after half a year saw no improvement in her labs or how she felt. She stopped and said she was done with supplements. Another patient tried a popular milk thistle blend and within a week developed bloating, stomach pain, and constipation worse than what she started with. I have heard versions of these stories hundreds of times. Milk thistle is not NAC. It does not convert into glutathione. It does not address the depletion that drives liver damage at the cellular level. The Vital Labs NAC 600 contains what your liver actually needs to rebuild its own defenses, and it is designed to be taken alongside, not instead of, whatever your doctor has recommended. P.S. If you are taking a statin and your liver enzymes have started climbing, I understand the fear. One of my patients saw her ALT jump from normal to over 140 within three months of starting atorvastatin. Another woman told me her heart surgery had to be delayed because her liver was, in her words, "in a mess" from the statin. She tried every oral statin available and each one hurt her liver. Stopping the statin is not the answer. Your cardiologist prescribed it because your heart needs it. But supporting your liver while you take it is a conversation worth having with your prescriber. The Vital Labs NAC 600 is what I take alongside, not instead of, my own daily health routine, and many of my patients on statins have found it worth asking their doctor about. P.S. If you are going through menopause and your liver numbers have started creeping up for no obvious reason, you are not imagining it. Hormonal changes during perimenopause and menopause can shift how your liver processes fat, and many women in this stage find that their weight will not budge no matter what they do. One woman I know stopped drinking entirely after menopause, swapped her evening wine for cheese and crackers, and her liver markers still rose. Another told me she felt like she was "guiding her own doctors" because nobody connected her rising enzymes, her stubborn weight, and her fatigue to her liver. The Vital Labs NAC 600 is designed to be taken alongside, not instead of, whatever your menopause clinician or GP has recommended. It supports your liver's own repair systems during a time when your body is changing in ways nobody warned you about. P.S. If you have done everything right, changed your diet, quit drinking, exercised, lost the weight, and your numbers are still not where they should be, I need you to hear this. You are not failing. One of my patients changed her entire life after a fatty liver diagnosis. Mediterranean diet. No alcohol. Daily walks. She was devastated when her follow-up showed the fatty liver had not improved. Her specialist later told her that sometimes "the liver stays the same" despite everything, and that genetics may play a larger role than anyone expected. Your liver may simply need more support than lifestyle changes alone can provide. The glutathione and NAD+ building blocks in The Vital Labs NAC 600 give your liver what it cannot get from food or exercise, alongside, not instead of, the hard work you are already doing every day. P.S. If you quit drinking and your GGT is stuck, I understand the frustration. One woman I worked with saw her GGT drop from 280 to 146 after three months of complete sobriety. Then it sat at 147 for another six months without moving. She felt like her body was punishing her for years of past choices. She wondered if her own GP believed she had actually stopped. The truth is, GGT can take a year or even longer to fully normalize after years of heavy drinking, and your liver needs consistent daily support during that time, not just the absence of alcohol. The Vital Labs NAC 600 gives your liver the glutathione precursor it needs while it heals at its own pace. It is meant to be taken alongside, not instead of, your sobriety and your doctor's monitoring plan. P.S. If liver disease runs in your family, please do not wait for your own symptoms before you act. One woman I know lost her father at 62. He had 22 abnormal liver function tests over eleven years. Every single doctor told him fatty liver was nothing to worry about, because that is how the medical system treated it. By the time his symptoms appeared, it was too late. His daughter now gets herself screened every year and has made daily liver support part of her routine. If a parent, a sibling, or a child of yours has had liver problems, the most important step is asking your own doctor for a baseline liver panel and a FibroScan. And while you build that baseline, The Vital Labs NAC 600, taken alongside, not instead of, proper medical screening, can be part of the daily routine that protects what you cannot afford to lose. P.S. If you are on a GLP-1 medication like Ozempic, Wegovy, or Mounjaro and hoping that losing weight will fix your liver along the way, please understand this. Weight loss does help the liver. But your liver still needs glutathione and NAD+ to repair the cellular damage that has already occurred. One man I know lost weight on a GLP-1, watched the number on the scale drop, and then saw his ALT and AST climb right back up because the underlying inflammation had not been addressed. Weight loss treats part of the problem. It does not rebuild the antioxidant and repair systems your liver depends on every day. The Vital Labs NAC 600 is meant to be taken alongside, not instead of, whatever your endocrinologist has prescribed. It fills a gap that weight loss alone cannot close. P.S. If you started a liver supplement, felt better, then stopped because you thought you were past the worst, and your symptoms came back, you are not imagining things. One woman took a liver-support formula for months, watched her numbers stabilize, felt her energy return, and decided she did not need it anymore. Within two months the fatigue crept back, her old symptoms returned, and her numbers started drifting in the wrong direction. She went back on the formula and everything improved again. Your liver does not stockpile these compounds. Glutathione is used and depleted every single day. NAD+ levels decline with age regardless of diet. Consistency is what keeps the repair systems running. That is why I take The Vital Labs NAC 600 every morning, not only when something feels wrong. P.S. If you are watching someone you love deal with liver disease and it has made you worry about your own liver for the first time, I understand that feeling from the other side of the bed rail. One mother watched her 35 year old daughter, a young mother of twins, fill with fluid until she could barely stand. She watched her daughter's kidneys begin to fail. She watched those teenage children try to understand why their mother could not get out of bed. Another woman texted her husband the diagnosis because she could not say the words out loud, then turned away from her young children so they would not see her cry. If someone you love is going through this, encourage them to see a hepatologist, not just a GP. And if their situation has made you think about your own liver for the first time, The Vital Labs NAC 600 is designed to be taken alongside, not instead of, medical care and proper screening. It is one daily step you can take while you still have the choice to take it.