An intricate network of more than 60,000 miles of blood vessels runs through our bodies, and Umzu claims it can help you get the most out of them with Redwood, a natural supplement that supports blood flow and circulation. Does it stand up to scrutiny, though?
Pros
- Little to no side effects
- Encouraging user reviews
- Some circulatory support potential
Cons
- Some questionable ingredients and doses
- Mixed reviews on reputed health blogs
- Not worth the high price point
Quick Verdict
Umzu Redwood isn’t worth its high price. While it contains several effective ingredients (mainly vitamin C, which is easily accessible elsewhere), it also contains ingredients that science suggests do the exact opposite of this supplement’s intended function.
L-leucine, which could actually inhibit nitric oxide production!
I highly recommend avoiding this poorly formulated and ineffective supplement. Instead, HeartBeets is a better option. It contains all the good stuff you can find in Umzu Redwood plus lots more, all for a similar price.
What Is Umzu Redwood?
Umzu Redwood is a dietary supplement formulated to optimize cardiovascular health by enhancing blood circulation and overall heart function.
This supplement stands out in the market due to its unique blend of natural ingredients that are scientifically backed to support vascular health.
Redwood is part of Umzu’s product line that focuses on providing natural solutions to common health concerns. It particularly emphasizes increasing the body’s nitric oxide levels.
This boost in nitric oxide is crucial because NO is a natural vasodilator—it relaxes the inner muscles of your blood vessels, causing them to widen.
This process results in increased blood flow and reduced blood pressure levels.
Umzu Redwood Ingredients
Vitamin C (as Ascorbic Acid) 1,000mg
Vitamin C helps the body perform many of its essential functions, including blood circulation. Studies indicate vitamin C enhances nitric oxide production [1].
Nitric oxide is a vasodilator that relaxes the inner muscles of the blood vessels, causing them to widen and increase blood flow.
However, studies linking vitamin C supplementation with improved blood pressure are tentative in their conclusions; it appears that primarily older persons experience notable benefits [2].
It was a little strange then for Umzu to make vitamin C the cornerstone of Redwood with a whopping 1,000mg dose. It’s also a little peculiar since vitamin C supplements are ubiquitous and cheap.
Garlic Root Powder 300mg
Garlic root is another ingredient with undoubted health benefits. The scientific literature supports Umzu’s claim that garlic has significant cardiovascular benefits, but these appear to be more pronounced with aged and/or fermented garlic [3].
However, the question of the dose that benefits each individual most without attendant adverse effects remains open.
For instance, three studies found little to no improvement in blood pressure after consuming 900mg daily for 8 to 12 weeks. Yet Redwood only contains 300mg.
Horse Chestnut Seed Extract 250mg
Umzu claims that horse chestnut seed supports vein health and healthy circulation, but studies supporting this are few and far between.
One study involving patients suffering from chronic venous insufficiency (CVI) found improvements in their symptoms comparable to those obtained from the use of compression socks [4].
However, the benefits may be more limited for relatively healthy individuals seeking a boost to their blood circulation to improve performance.
Lactotripeptide 125mg
Lactotripeptides show potential for the prevention and control of hypertension, though studies have been relatively inconsistent.
A meta-analysis of lactotripeptide intake and blood pressure management reveals that while its blood pressure-lowering effect is statistically significant, these effects are small in magnitude [5].
Maritime Pine Bark Extract 100mg
Maritime pine bark extract contains bioflavonoids and phenol-carbonic acids, which help boost nitric oxide production.
A 2007 study supports this, suggesting that maritime pine bark relaxes muscle cells within blood vessel walls, causing them to widen and improve circulation [6].
This is a promising addition, though it’s worth bearing in mind that the study administered nearly twice as much maritime pine bark as is found in Redwood.
L-Leucine 75mg
This is an interesting choice. Leucine is good for muscle growth, healing skin and bones, and may help control blood sugar.
But it could also inhibit nitric oxide production! At least, those are the tentative findings of two studies [7][8].
One used rats as test subjects, the other obese and diabetic patients. Both concluded, however, that high concentrations of L-leucine impair nitric oxide synthesis.
I’m rather stumped as to why you would want to include a potential nitric oxide inhibitor in a nutritional supplement aimed at boosting nitric oxide production.
Umzu Redwood Price
| Nitric Oxide Supplement | 1 Bottle | 3 Bottles | 6 Bottles |
|---|---|---|---|
| Umzu Redwood | $44.99 | $134.97 | $269.94 |
Umzu Redwood Benefits
Supports blood circulation
Redwood claims to naturally support blood flow and circulation, leading to healthier blood pressure, better performance, and warmer extremities.
Nitric oxide is a vital compound that naturally occurs in the body and plays a crucial role in optimal cardiovascular function by widening and relaxing blood vessels.
This process potentially improves blood circulation, which is vital for maintaining a healthy heart.
Boosts immunity
Vitamin C and garlic are known for helping to fortify the body’s immune system. Getting either of these from other sources is not too difficult, though. The use of garlic in Umzu Redwood at a dosage of 300 milligrams appears to be one of its noteworthy benefits.
Recent medical reviews have indicated that this amount of garlic powder supplementation may delay heart disease, offering a practical advantage for those aiming to support their cardiovascular health.
Garlic’s history of contributing to heart health makes this ingredient align well with the supplement’s core aim.
Another component, horse chestnut, is recognized for its antioxidant effects. Antioxidants are essential in combating oxidative stress within the body, which is linked to various health issues.
But, while it shows promise in terms of antioxidant support, it is important to note that current research does not provide direct evidence to validate its role in supporting cardiovascular health specifically.
Hence, its inclusion may offer supplementary benefits rather than being a primary factor in heart health improvement.
Improved stamina
This is largely a consequence of improved blood flow. Logically, more blood circulating means you will be able to train harder and for longer. This, in turn, is good for your mood and general well-being.
Who Is Redwood For?
Those Concerned About Heart Health
For those who are proactive about maintaining a healthy heart and are open to integrating natural supplements into their wellness routine, Umzu Redwood is a compelling option.
The formula’s emphasis on natural ingredients like L-arginine and horse chestnut extract appeals to health-conscious individuals who prioritize clean, plant-based options over synthetic alternatives.
Athletes & Fitness Enthusiasts
Athletes and fitness enthusiasts may also find Umzu Redwood especially beneficial. The increased nitric oxide production aids in enhancing blood flow, which could translate to better stamina and energy during physical activities.
Many users report an uptick in their endurance levels, making it suitable for those participating in sports or rigorous workouts.
It can offer that extra edge for those looking to optimize their physical performance and recovery times.
Those With Poor Circulation
The supplement may also appeal to those experiencing issues related to poor circulation, such as cold extremities or general fatigue.
The natural enhancement of blood vessel function could alleviate some discomforts associated with these conditions.
Also, for individuals who experience cognitive lapses or feel mentally foggy, accounts suggest Umzu Redwood’s potential to improve cognitive clarity due to better blood flow.
My Personal Take on Redwood
I was on the lookout for a nutritional supplement to improve my blood flow as I’ve suffered from cold extremities for as long as I can remember.
Even though I train regularly and don’t think I am particularly lacking in energy or drive, when I discussed my cold hands and feet with a friend, they suggested I could probably benefit from a blood flow supplement.
This was the first such product I tried, and I have to say, I was less than impressed.
I didn’t notice any difference in the first two weeks. I kept up my usual diet and fitness regime, and while I experienced no side effects whatsoever, I also didn’t feel any benefits.
By around the one-month mark, I started to notice a minor improvement. At rest, my hands and feet were definitely less cold, but then again, so was the weather!
I didn’t feel any more energetic, though, and I could push myself much harder in the gym.
Perhaps these benefits would come to the fore with prolonged use, but I’m not convinced. After doing a deep dive into the science behind the ingredients and the dosages, I think I’m right to be skeptical.
In terms of customer service, I have no complaints. The product arrived swiftly. But given the price point and my experiences, I won’t be becoming a regular user.
Redwood User Reviews
It’s no surprise that Redwood boasts a 4.8 out of 5 star rating on its website, but what about other sources?
The reviews on Amazon are also impressive, with a 4.3 score. However, these should also be taken with a pinch of salt.
Reputed health blogs are somewhat more disparaging. WellnessVerge gives it a 2.9, while Consumer Health Digest puts Redwood on a 2.5 score. This is more or less where I would rate Redwood as well.
Redwood Side Effects
Possible side effects include bad breath, heartburn, gas, and diarrhea, but it is generally considered safe so long as you don’t exceed the recommended intake of three capsules a day.
Taking them with food and water may help to minimize side effects.
In any case, it’s a good idea to discuss the issue with your physician before taking Redwood.
Redwood Alternatives
HeartBeets
There’s no better product than HeartBeets for improving blood flow by increasing nitric oxide production.
Although less well-established, HeartBeets has been generating quite a bit of positive noise recently, which doesn’t surprise me. When you compare the ingredients of Umzu Redwood and HeartBeets, it’s obvious which is the better product.
HeartBeets contains more active ingredients than Redwood at stronger doses and uses beetroot extract rather than vitamin C as one of its main components.
Beetroot has been proven to boost nitric oxide in several studies and is now considered one of the top-tier ingredients for improving blood flow.
It’s why HeartBeets is ranked my best nitric oxide supplement.
Each ingredient in HeartBeets also has solid science backing up their inclusion, unlike Redwood, where one or two ingredients seem questionable at best.
HeartBeets is also cheaper if you opt for a three-month order, as it comes at a discount and includes a free one-month supply.
I can’t state it enough, HeartBeets is the best option for nitric oxide and blood flow. You can read my full HeartBeets review for a detailed formula breakdown and my experience.
Heart Sheild
Another decent option is Heart Sheild, which contains a good dose of vitamin C, beetroot extract, and several more ingredients that support healthy blood flow and boost nitric oxide production.
Although not as expertly dosed as HeartBeets, Heart Sheild can provide real benefits thanks to its high number of effective ingredients.
If HeartBeets doesn’t work for you, then Heart Sheild should be the supplement you try next. My Heart Sheild review goes into detail about the formula and my experience.
Red Tonik
For those who prefer powdered drinks to capsules, Red Tonik could be a good option.
It contains 13 active ingredients to boost circulatory health, promote strength and endurance, and reduce inflammation. It is also vegan-friendly.
One of its key ingredients is beetroot powder, which is an effective blood flow enhancer.
The only downside of Red Tonik compared to HeartBeets is that it is more expensive and less focused on nitric oxide and blood flow improvements.
Summary
My take on Redwood? Average to poor at best.
If taken correctly alongside a healthy diet and regular exercise, there’s a good chance you’ll eventually see improvements to your circulation. Still, this will only be the case if your blood flow issues are relatively severe.
Even then, there are much better products out there (such as the ones mentioned above) for about the same price.
HeartBeets
HeartBeets
Improve vein and artery health, increase blood flow, and reduce the risk of heart disease.
CHECK CURRENT DEALS
References
- Lbban, E., Ashor, A., Shannon, O. M., Idris, I., & Siervo, M. (2023). Is vitamin C a booster of the effects of dietary nitrate on endothelial function? Physiologic rationale and implications for research. Nutrition, 109, 111995.
- Ashor, A. W., Shannon, O. M., Werner, A. D., Scialo, F., Gilliard, C. N., Cassel, K. S., … & Siervo, M. (2020). Effects of inorganic nitrate and vitamin C co-supplementation on blood pressure and vascular function in younger and older healthy adults: a randomized, double-blind crossover trial. Clinical Nutrition, 39(3), 708-717.
- Banerjee, S. K., & Maulik, S. K. (2002). Effect of garlic on cardiovascular disorders: a review. Nutrition journal, 1, 1-14.
- Pittler, M. H., & Ernst, E. (2012). Horse chestnut seed extract for chronic venous insufficiency. Cochrane database of systematic reviews, (11).
- Qin, L. Q., Xu, J. Y., Dong, J. Y., Zhao, Y., Van Bladeren, P., & Zhang, W. (2013). Lactotripeptides intake and blood pressure management: a meta-analysis of randomised controlled clinical trials. Nutrition, Metabolism and Cardiovascular Diseases, 23(5), 395-402.
- Nishioka, K., Hidaka, T., Nakamura, S., Umemura, T., Jitsuiki, D., Soga, J., … & Higashi, Y. (2007). Pycnogenol®, French maritime pine bark extract, augments endothelium-dependent vasodilation in humans. Hypertension Research, 30(9), 775-780.
- Tekwe, C. D., Luan, Y., Meininger, C. J., Bazer, F. W., & Wu, G. (2023). Dietary supplementation with L-leucine reduces nitric oxide synthesis by endothelial cells of rats. Experimental Biology and Medicine, 248(18), 1537-1549.
- Yang, Y., Wu, Z., Meininger, C. J., & Wu, G. (2015). L-Leucine and NO-mediated cardiovascular function. Amino Acids, 47, 435-447.
Affiliate Disclosure:
The links provided may earn us a small commission at no additional cost to you if you choose to purchase the recommended product. This support allows our research and editorial team to continue providing high-quality recommendations. As a participant in the Amazon Services LLC Associates Program, an affiliate advertising initiative, we are able to earn advertising fees through providing links to products on Amazon.com. Please rest assured that we only recommend high-quality products.
