Axe & Sledge Supplements Demo Day Naked Unflavored Review
Product Focus: Blood PressureAlso covers:Heart
Tier ⓘ
Tier 4 · Rank 4
Tier 4 · Emerging. A promising mechanism or animal data, with thin human evidence so far. Rank 4 within Tier 4 for Blood Pressure; 37 of 62 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
44 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
98% of 226
Biohacker Mentions
0 of 10
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Study, Trial or Testing Result Summary
Members OnlyHuman studies
We found no human studies on blood pressure for the ingredients in Demo Day Naked Unflavored, so we cannot say whether it helps this goal. The label lists only the product name and a serving size of 35.1 grams. It does not break down which ingredients are inside or how much of each one there is. Because of that, we cannot check whether any ingredient reaches a dose that has been studied, or whether ingredients are hidden in a blend. Customer ratings are very positive: 98 percent of 226 reviews are favorable. However, we could not read any written reviews, so we do not know what buyers liked or whether they bought it for blood pressure at all. Most people likely use a product like this for workouts rather than heart health, but that is a guess, not a finding. No experts on our biohacker panel commented on it. Until studies on its ingredients and their doses for blood pressure are available, treat any blood pressure benefit as unproven. If you have high blood pressure or take medicine for it, talk with your doctor before using it. Animal and cell studies are never counted.
Review Totals and Summary
Members Only226 reviews · 98% positive
226 reviews · Google Shopping 226
98% positive0% neutral2% negative
Extensive customer reviews and qualitative feedback are currently being aggregated for this product. Check back soon for a detailed sentiment analysis.
Biohacker Summary
Members Only0 of 10 recommend it
0 of 10 biohackers on our panel recommend it
This product's ingredients are taurine and starch, and both are smaller ingredients in this product, though eight panelists spoke about taurine. Taurine gets mixed but mostly favorable views: a few recommend it, a few say they take it, and several stay neutral because the longevity results come mainly from mice and human proof is thin. People take it for stress and calm, sleep, blood pressure and metabolic health, exercise performance, and healthy aging, with doses given as 2 grams before bed by one person and 0.5 to 3 grams by another, and it is paired with caffeine for power, with creatine, or taken in the morning on a ketogenic diet. One panelist warns against taurine and stopped energy drinks that contain it after eye damage, and another said they do not use it for performance because the evidence is mixed. Starch drew comments from two panelists, who both warn about it and advise cutting it out because of insulin resistance and liver concerns, and one said they stopped eating it.
See all 10 biohackers →Hide the biohackers
Dr. Eric Berg · Taurine · neutral
- States that sardines contain taurine, which supports GABA, a calming neurotransmitter.
- Warns that starch, found in foods like potatoes, rice, pasta, cereal, crackers, and biscuits, is hidden sugar and contributes to chronic elevation of insulin, leading to insulin resistance and various chronic diseases.
- Stopped consuming starch as part of ditching an unhealthy diet.
- Dr. Eric Berg's childhood was filled with starch, and he later ditched his unhealthy diet by getting rid of starches.
- Warns that consuming starch can cause liver problems.
- Advises avoiding starch to reverse diabetes.
- Warns that hidden sugar, also called starch, which includes cornflour, maltodextrin, and modified food starch found in junk food, is also sugar because it breaks down into glucose.
- Explains that taurine, found in sardines, spikes GABA, the calming neurotransmitter, leading to feelings of calm, stability, improved stress tolerance, and better sleep without middle-of-the-night cortisol spikes.
- States that starch, even in gluten-free bread, can spike blood sugar and contribute to higher LDL cholesterol, fatty liver, and glycation.
- Warns that starch, which is a string of glucose molecules, is essentially a different type of sugar that quickly turns into sugar in the body, causing blood sugar spikes and contributing to various health problems.
- States that consuming starch can cause liver problems.
- Warns that industrial starches like maltodextrin, modified food starch, and modified cornstarch in ultra-processed foods are deadly on the liver, making it fat.
- Recommends taurine because bile salts are made from it.
- Mentions that red meat contains taurine, an amino acid needed to help prevent high blood pressure.
Dave Asprey · Taurine · neutral
- Host Dave Asprey examines the connection between taurine, inflammaging, immune function, and longevity, explaining why cellular nutrient availability may matter more than blood concentrations and what this emerging mechanism means for supplementation and inflammation management.
- Dave Asprey explains that a 2017 study in rats found taurine pretreatment reduced several behavioral and biochemical effects of chronic unpredictable stress, but notes this does not show that taurine treats depression in humans.
- Mentions that taurine, a common longevity molecule, affects the sense of smell, but they do not know why it works.
- Dave Asprey takes taurine, acknowledging it's cheap and safe, but notes that while mouse studies show spectacular longevity benefits, human data is currently only observational and lacks randomized longevity trials.
- Mentions taurine as one of the ingredients in the Ageless Cocktail, which is designed for longevity.
- Dave Asprey explains why taurine remains popular in energy drinks and pre-workouts despite limited scientific evidence, what dosages and activity types future research should test, and why a reality check on a billion-dollar supplement category is exactly the kind of truth biohackers need.
- Dave breaks down why a daily stack of taurine, B6, folate, and B12 works for motivation when either ingredient alone doesn't.
- Recommends the amino acid taurine to support bile production for toxin removal.
- Mentions that atrial fibrillation has to do with mineral status, including taurine.
- Recommends 5 to 10 grams of taurine for people experiencing a racing heart when taking metabolic stimulants like GLP drugs, as it helps normalize heart rate.
- Explains that dextrin is a molecule that gets activated to get into the intercellular levels by binding to A2 receptors on lipid rafts to deliver molecules through that channel.
- States he doesn't fear starch as long as he's not in mold and is maintaining a healthy, balanced diet.
- Dave Asprey states that if he had cancer, he would limit protein, starch, and sugar to starve the cancer.
- Warns that glycerin in dental products puts a coating on teeth, preventing minerals from getting back in, leading to demineralization and making teeth more prone to cavities.
Dr. Mark Hyman · Starch · recommends
- Recommends cutting out starch for the most part if one has insulin resistance.
- Advises cutting down, reducing, or eliminating starch to address insulin resistance.
- States that many cancers, including breast cancer, are fueled by excess starch.
- Recommends cutting out starch to change the microbiome and improve brain function and behavior.
- Warns that too much starch can drive up insulin, triglycerides, and ApoB.
- Recommends including a cupped handful of starch at each meal as part of a balanced plate for stable energy and reduced cravings.
- Advises taking people off sugar, starch, and processed food to allow the body to heal and restore natural taste perception.
- Warns that starch, along with sugar and refined foods, is damaging to mental health and causes inflammation, leading to an epidemic of mental health issues.
- Warns that limiting starch could be the most powerful food choice to improve health and increase longevity, and that ditching it helps the body heal itself.
- Warns that eating a lot of starch and sugar leads to insulin resistance, which is the real problem causing the epidemic of heart disease.
- Takes 2 grams of taurine a day for longevity, having learned about its effects from primate studies showing significant life extension and cardiovascular benefits.
- Mentions taurine as a conditionally essential nutrient that is important for biological function, even if not a typical deficiency disease vitamin or mineral.
- Recommends taurine at about 500 milligrams a day to support liver detoxification and hormone metabolism.
- Recommends taurine, along with magnesium and B6, for helping with estrogen excess and metabolism.
Thomas DeLauer · Taurine · recommends
- Recommends taurine, stating it raises the stress threshold, acts as a GABA and glycine receptor modulator, and protects neurons from stress, ultimately lowering cortisol release.
- Recommends adding 0.5 to 3 grams of taurine, a cellular osmolite, to help regulate and stabilize fluid balance inside the cell, supporting creatine's effect and preventing muscle shrinkage, and also notes its benefits for performance and longevity.
- Notes that sardines also contain taurine.
- Recommends taurine, obtainable from supplements or red meat, for its role in intracellular retention of magnesium and as an underrated longevity supplement.
- Taurine has shown improved time to exhaustion and anaerobic performance across multiple studies.
- Personally used taurine while dieting to maintain performance in a calorie deficit, noting it allowed him to push boundaries on volume and recover better.
- Recommends taurine, especially when paired with beta-alanine, for its significant brain and heart effects. He notes that taurine supports calcium handling and cardiac stability, and together with carnosine, it creates an ultra-protective antioxidant and anti-inflammatory environment, improving cardiac resilience. He suggests a dose of 2-6 grams, with evidence showing 1 gram can be powerful.
- Recommends pairing taurine with creatine and electrolytes to create a 'hydration trifecta,' as taurine acts as an osmolite that regulates and stabilizes cellular hydration.
- Discusses how taurine is helpful in congestive heart failure, noting that it seems to affect slower twitch, fat-oxidizing muscles and can reduce stress.
- Recommends taurine as a powerful performance enhancer, citing studies showing increases in VO2 max and peak power, and decreases in creatine kinase, improving recovery. He rates it as "strong" for performance enhancement, but notes it requires effort for fat loss or muscle building.
- Observed less starch consumption than expected in the Mediterranean, with smaller servings and a focus on good quality bread rather than massive staples of carbohydrates.
- Warns about dextrin, derived from corn, primarily due to its high glycemic index, which can spike blood glucose and trigger an insulin response, potentially halting ketogenesis, especially when found in high amounts in drinks and protein powders.
- Mentions resistant dextrin as an interesting way to create low-carb foods because it is a carbohydrate that does not digest.
- Advises being careful with anything with 'X starch' such as potato starch, especially if it's at the top of the ingredient list.
Dr. Rhonda Patrick · Taurine · neutral
- Mentions that taurine depletion is a concern raised in long-term animal studies regarding Beta Alanine, though not observed in human trials, and notes that one can supplement with taurine, which is a beneficial compound.
- States that they do not use taurine for performance, acknowledging its benefits for mitochondrial health and longevity, as suggested by Bruce Ames, but finding performance literature mixed.
- Takes taurine in the morning, considering it a beneficial supplement with the ketogenic diet.
- Heather's asking if she'd like my opinion on whether or not the new sort of news that has come out about taurine perhaps even help playing a role in promoting cancer, what my thoughts are on that. I'm not really worried about it, to be honest. I think it was a— I mean, it was just like a very in vitro kind of study. Doses were completely irrelevant, and I just right now I have no concern about about taurine causing cancer.
- Dr. Rhonda Patrick explores taurine's longevity role.
- She has not tried taurine yet but is considering experimenting with it, noting that she gets a lot of carnitine from her meat-rich diet.
- Mentions taurine as a potential longevity vitamin, found in meat.
Siim Land · Taurine · neutral
- States that taurine supports normal muscle, nerve, and heart function, and supplement trials suggest benefits for some metabolic markers, exercise performance and blood pressure.
- Recommends Taurine for blood pressure and metabolic health, based primarily on human research, especially randomized controlled trials showing measurable benefits.
- Lists Taurine as one of 15 supplements backed by human studies.
- Thinks taurine has some of the strongest evidence and is worth considering.
- Recommends taurine for older people to support mitochondrial function and metabolic health.
- Explains that taurine targets metabolic syndrome, which is characterized by high waist circumference, low HDL cholesterol, high blood sugar, high blood pressure, and high triglycerides.
- Discusses taurine, an amino acid, noting its longevity benefits in animal studies and its ability to improve blood sugar, lipids, and blood pressure in human trials. He mentions that the Japanese diet is high in taurine-containing foods like tuna, scallops, nori, and sea vegetables.
- Recommends taurine as one of the boring, foundational supplements.
- Places Taurine in the 'god tier' due to extensive human clinical trials showing its benefits for metabolic health, metabolic syndrome, cholesterol, lipids, blood sugar, blood pressure, and exercise performance, including muscle strength.
- Includes taurine in his 'all out' supplement stack.
Ben Greenfield · Taurine · neutral
- Taurine on its own isn’t particularly impressive as an ergogenic aid, but when combined with caffeine, there are significant increases in power production.
- Recommends taurine supplementation, especially for plant-based dieters, citing a 2023 study showing its decline with age and its potential to extend health span and restore markers of brain aging in mice, with anecdotal evidence for human brain function.
- Recommends Taurine as one of the top two individual ingredients for managing elevated liver enzymes.
- Gets nerdy about taurine and explains which longevity supplements actually work, according to the science in mammals.
- Notes that taurine is an amino acid with research supporting its benefits for reducing DNA damage, mitochondrial dysfunction, inflammation, and telomere shortening, but he doesn't take it separately as he gets a full amino acid complex.
- Notes that taurine tends to be low in plant-based eaters and recommends supplementing with it.
- Uses glycerin in his toothpaste, clarifying that it is highly water-soluble and does not impede remineralization, but rather provides preservation, texture, acts as a binder, and is bacteriostatic.
- Ben Greenfield discusses a study showing that taurine, at a dose of about 50 milligrams per kilogram of body weight, can help prevent overheating during exercise in hot conditions by improving sweating parameters and heat transfer.
- Recommends taurine as a modern biohack to maintain or build muscle on a plant-rich diet, addressing deficiencies not obtained from plants.
- Ben recommends consuming about 100 grams per hour of an easy-to-digest potato-based starch (like branched cyclic dextrin or potato dextrose) during endurance exercise, combined with ketones, amino acids, and electrolytes.
- Used nutrients like taurine, found largely in animal foods, to help his heart prevent remodeling, recover, and heal.
- Likes to combine L-taurine with L-arginine and L-citrulline for nitric oxide synthesis.
- Mentions that isomaltulose, a slow carbohydrate, is included in Snake water to prevent blood sugar from dropping too low when taking too many ketones, which could impair performance.
- Previously recommended Super Starch as a slow-bleed carbohydrate but found it caused fermentation and gastric distress in many people, including himself, making it unsuitable for multi-day events.
Peter Attia · Taurine · neutral
- Mentions that taurine supplementation in mice and other species appears to prolong life, referencing V.J. Adav's work, but notes that it is unclear if the same applies to humans.
- Mentions that taurine supplementation in mice and some other species appears to prolong life in VJ Addev's work, but it's unclear if the same applies to humans.
- A new study set off a media storm over taurine’s potential in delaying aging and extending lifespan, which is great news if you’re a mouse.
- Peter Attia discusses a new study suggesting taurine supplementation could slow aging processes and extend lifespan in mice and monkeys, but expresses skepticism about its relevance to humans due to significant biological differences and the body's regulation of taurine levels.
- Takes 2 grams of Taurine before bed for sleep.
Andrew Huberman · Taurine · warns
- Warns to beware of taurine and energy drinks containing taurine.
- Is not a fan of taurine because it caused bursting of microvasculature in his sclera, in his eyes.
- Stopped taking energy drinks because excessive levels of taurine in them caused microvascular damage in his eyes, which he believes could also occur deeper in the skull.
- Warns to beware of Taurine and energy drinks containing Taurine.
- Mentions that Dr. Andrea Suarez talks about the critical role of taurine for skin health.
Bryan Johnson · Taurine · uses
- Bryan Johnson takes Taurine daily as part of his Longevity Mix, which supports heart health, provides antioxidant protection, and supports immune health.
RAL Summary
Members OnlyTier 4 for Blood Pressure
Tier 3 requires some study support, but no human studies on blood pressure were found for this product's ingredients, so only its reviews support it and the evidence is thin. So it is graded Tier 4, lower than the rules alone gave.
- Emerging: not enough evidence to rank higher yet.
- No human studies on this goal for its ingredients.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Cardiovascular system
Combine with: Combine with a healthy diet and lifestyle.
Possible side effects: No major side effects reported.
Supplement Facts
Total Carbohydrates 25 g · Legume-Base Starch 15000 mg · highly branched Cyclic Dextrin 11000 mg
Supplement Facts
Serving Size 35.1 Gram(s)
Servings Per Container 30
Amount Per Serving% Daily Value
| Calories | 100 | |
| Total Carbohydrates | 25 g | |
| Legume-Base Starch | 15,000 mg | † |
| highly branched Cyclic Dextrin | 11,000 mg | † |
| Isomaltulose | 2,000 mg | † |
| L-Taurine | 2,000 mg | † |
| Glycerol powder | 2,000 mg | † |
| Cinnamon extract | 50 mg | † |
| Alpha Lipoic Acid | 50 mg | † |
† Daily Value not established.
Other ingredients: Silicon Dioxide, Natural Masking Agents.
Directions: Demo Day can be used pre, intra, or post workout depending on your goals and needs. Suggested Use As a dietary supplement, mix 1 scoop with 10-12 oz of water. This product can be taken multiple ways: 1 Pre-workout: Drink 1/2-1 serving 30 minutes before training 2 Intra-workout: Sip on 1/2-1 serving during training 3 Post-workout: Drink 1/2-1 serving after training
Barcode (UPC) 753577017079 · Label source: NIH label database · Report a label change
Show entire label
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- How to Lower Diastolic Blood Pressure for LongevityArticle · Sep 17, 2026
- DASH Diet for High Blood Pressure: What It Lowers, What to Eat, and How to StartArticle · Sep 19, 2026
Graded November 15, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.
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