







From the brand


Our Story
At 19, UMZU co-founder Christopher Walker was diagnosed with a brain tumor blocking testosterone production. As a Duke neuroscience student, he used natural methods to heal his symptoms and boost testosterone to over 2x the national average. After sharing his story, he gained a following, and people asked: “What other problems can we solve naturally?


Hormones & Energy

Mood & Cognition

Protein & Fitness
Product Dimensions : 2.81 x 2.81 x 5.25 inches; 7.37 ounces
Item model number : UMZU-SUPP-REDWOOD-1PK
Date First Available : January 2, 2020
Manufacturer : UMZU
ASIN : B083FF74NQ
Best Sellers Rank: #6,399 in Health & Household (See Top 100 in Health & Household) #16 in Sports Nutrition Nitric Oxide Boosters
Customer Reviews: 4.3 4.3 out of 5 stars 11,650 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
SUPPORTS CIRCULATION & BLOOD FLOW: Crafted with garlic, horse chestnut and pine bark to help support healthy circulation, normal blood flow and oxygen transport while promoting daily energy and vitality.
ENERGY & STAMINA SUPPORT: Supports healthy circulation which may help sustain energy, endurance and daily performance whether you are working, exercising or staying active throughout a busy lifestyle.
IMMUNE WELLNESS FORMULA: With vitamin C and natural botanicals, this formula may aid in supporting immune health, helping the body maintain balance, wellness, and resilience year-round.
FOR MEN & WOMEN: Designed for adults of all lifestyles, Redwood provides nitric oxide support for healthy circulation, stamina and energy with benefits that can be enjoyed by both men and women.
QUALITY YOU CAN RELY ON: Made in the USA with research backed ingredients and third party tested for purity and consistency, ensuring a safe daily supplement that supports any wellness routine.
8 reviews for UMZU Redwood Blood Flow Nitric Oxide Supplement for Men & Women, Blood Pressure, Circulation, Stamina, Energy (30 Day Supply | 180 Capsules)
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$42.74

Ramiro –
My review
Satisfied with product.
Jad Blackmore –
Im impressed
Im a 48 year old healthy man but starting to feel old age creeping in. Long story short, redwood max has been a game changer for me.. It works. more energy, more libido, more stamina, my wife has even noticed my bald spot growing hair again. This is the one for me. I will definitely be buying again.
Amazon Customer –
Good with a break
Great product. Gives me energy, maintains blood pressure and helps with the flow. The only gripe is that two of the bottles in the pack had broken capsules
Amazon Customer –
Must Have!
My husband will not go without this supplement. It helps his arthritic pain immensely!!!!
M. White –
Disappointed — Original Redwood Worked Better for Me
I’ve used the original UMZU Redwood for over a year, and really liked how it made me feel — noticeable effects, more energy, better circulation. Unfortunately, Redwood Max didn’t deliver the same results. I haven’t experienced any noticeable benefits after finishing the bottle. It might work differently for others, but for me, the original formula was better.
GSchlegel –
Amazing 🤩
This is by far my favorite UMZU product!I’ve tried several UMZU supplements, but this one stands out as the most effective for me. I struggle with poor blood flow and leg pain from varicose veins, and since starting this supplement, I’ve noticed a significant improvement. The capsules are easy to take with no unpleasant taste, and I’ve felt more energized and in a better mood overall.I really appreciate that all the ingredients are 100% natural, and for the results I’ve seen, the value is absolutely worth it.10/10 – highly effective and genuinely life-improving!
Juice –
I may never go back on BP meds
I’m a believer. I’ve been using the product for two weeks and already see results. I haven’t used my blood pressure medication in over a month and typically have a systolic in the 150s despite taking the medication regularly. I exercise, don’t eat fast food and stay away from sugary drinks. Overall try to stay healthy and I must say this is a breath of fresh air to know this is made with natural ingredients. I’m now in the upper 130s and feel great!! I will give one draw back, my hematocrit seems to have dropped but I’m not sure if it’s related. Consult your physician before starting or stopping any medication.
These non- binding sock by MD really work for me. I have spent hundreds of dollars on non-binding socks. I believe I have Success! –
Products Works Fast!
Great product for circulation!This works really fast!