Shocking D-Mannose review, 2018

Try buying D-Mannose in CVS, Walmart or Amazon and you quickly realize that it is very difficult to choose among all available options (here is my review of brick-and-mortar options of where to buy D-Mannose), this is when my D-Mannose review can help you to see the forest behind the trees.

The problem when comparing D-Mannose brands is that manufacturers list weight in ounces, grams, milligrams, capsules etc. and it becomes very hard to figure out how much you are really paying for D-Mannose.

On top of that, many brands include additional ingredients, that affects how much pure D-Mannose you get per dose.

I reviewed 7 most popular brands of D-Mannose currently sold on Amazon and took into consideration the following:

  • The purity of the ingredients (with or without additives).
  • Cost: how much per day you are going to spend if you take D-Mannose daily for prevention (2000 mg per day). This is, however, is an everchanging parameter since Amazon is well-known for price adjusting.
  • I only included in this review the brands of D-Mannose that had at the moment of review 4.5 stars and higher customer satisfaction rating (this could change with time, as well, and therefore I regularly update this post).
  • Only included brands that had no less than hundred reviews per product at the time of the review, indicating it’s relative popularity on the market.
  • At the end of the post, I added special D-Mannose brands that are more expensive but are important to know for people with corn allergy and those who prefer to buy D-Mannose made in the USA (most of other D-Mannose brands source their powder from China).

Here are my results of reviewing Top 7 brands of D-Mannose powder that you can buy on Amazon.

D-Mannose review: powder is the best option

#1 The First place goes to pure D-Mannose powder by Bulk Supplements (250 grams).
This is why:

  • No additives, pure D-Mannose powder.
  • One of the cheapest options when you look at how much of pure D-Mannose you get per dollar.
  • 250 grams of powder will last you for 125 days of prevention. More than four months! Given that it’s good for couple years from the manufacturing date, this product delivers the best “bang for the buck”.

Trust me, you do not want to run out of D-Mannose. And if you need to go from prevention to the treatment supplementation dose protocol, you want to have enough to last you through the “rainy days”.

Bulk Supplements brand provides you plenty of D-Mannose for the best price on the market.

However, the packaging is not super convenient, because the zip-lock never truly closes tight again once opened. I have to use a paper clip to keep it closed.

Also, if I’m taking D-Mannose with me on a trip, I would normally portion 2-3 ounces and take just that in a regular zip-lock or re-use a bottle from another supplement.

#2 The Second place goes to NOW D-Mannose powder, 6 oz bottle.

  • No additives, pure D-Mannose powder.
  • It is more expensive per dose than the brand above, but it comes in a convenient bottle that is easy to take with you when traveling.
  • This bottle (6 oz) will last you 80 days if using prevention dose. Not bad! Almost three months.

Why you don’t need D-Mannose capsules

NOW brand has D-Mannose in capsules as well. The question is why do you need it?

  • You are overpaying for labor that goes into packaging D-Mannose powder into the capsules.
  • Moreover, you have to consume all extra “inert” ingredients that are required in order to capsulate the powder (Cellulose, rice flour, stearic acid, Magnesium Stearate and Silica).
  • D-Mannose tastes like sugar. There is no reason to hide it in a pill.
  • It is not a rocket science to grab some D-Mannose sugar with a teaspoon. A little more or a little less won’t make much difference. You do not have to be precise.
  • I hate swallowing capsules. Why do you need to swallow pills if you can simply drink sweet water?

#3 Nonetheless, the Third place goes to NOW brand has D-Mannose is capsules because it is a very popular and well-reviewed product.
Yes, you are paying almost 3 times more per dose when compared to powder, but if you absolutely must have D-Mannose in capsules, then this brand is a good option.

  • 120 capsules will last you for approximately 30 days of prevention

#4 The Fourth place goes to D-Mannose Capsules with Cranberry and Dandelion Extract by Divine Bounty mainly because they packed 600 mg of D-Mannose per capsule. It is 100 mg more than the previous brand, which makes it’s possible for them to claim “highest dose per capsule on the market”.

They also threw in some cranberry and a tiny amount of dandelion extract, both of additives are more of a marketing gimmick, especially at the given amounts (100 and 50 mg. respectively). This also resulted in a rather large capsule (“approximately 3 quarters of an inch long”).

  • This bottle with 120 capsules will last you for approximately 30 days of prevention

#5 The Fifth place goes to Superior Labs – Best D-Mannose in capsules.

Nothing remarkable, same 120 capsules per bottle and 500 mg of D-mannose per capsule, however, this brand is gaining popularity so we might as well include it.

 I highly suggest comparing this to NOW D-Mannose brand to see which one is cheaper at the moment. Amazon is known for their unexpected price drops, but at the moment of the review (January 19th, 2018) NOW brand has better value.

Superior labs also use rice powder instead of no Magnesium Stearate, that some find appealing. My best advice is to go with pure powder if you truly do not want any additives.

  • This bottle with 120 capsules will last you for approximately 30 days of prevention

#6 The Sixth place goes to surprisingly popular Solaray D-Mannose with Cranactin.

Adding cranberry extract won’t do much. Cranberry pills and cranberry juice have been proven useless.

This supplement also has vitamin C. Vitamin C is actually a great way to lower your urine pH and decrease inflammation of the bladder.

But guess what, you are better off buying it separately to get a bigger, more potent dose than the one cramped into the pills.

  • This bottle provides enough D-Mannose to use for about 30 days of prevention.

#7 The Seventh place goes to PRO Women (mainly combo of probiotics and D-Mannose).

While probiotics are super important, this supplement does not disclose which strains are being used. On top of that, you only get 5 billion CFUs, which is twice less than probiotic experts recommend for potency.

Unfortunately, the rest of the space in a capsule is taken by useless cranberry extract and fillers. Amount of D-Mannose in these capsules is negligible (250 mg, which is 4 times less than you need).

Therefore, if you are buying it because of D-Mannose, then you are fooling yourself. If you are buying probiotics, buy the ones that disclose their strains and with at least 10 billion CFUs.

  • This bottle buys you four (4!) days of prevention dose 🙂 Yes, it’s not a typo!

Special D-Mannose Powder: Made From Cranberries and Pineapple, In The USA

One of my readers pointed out that some folks are allergic to corn. Corn allergy, similar to any other food allergy, could manifest itself in skin hives and GI problems, which are often reported as D-Mannose side-effects.

Here are two brands that sell D-Mannose powder (it’s more expensive than other options) made in the USA from pineapple and cranberries or derived from birch/beech wood hydrolysate:

Since corn allergy is not a Top-10 food allergy, I realize that it is a very special requirement and probably not fair to compare these brands for price/value with the rest.

However, if you are allergic to corn, I wanted to provide you with these options. Both brands are equally expensive so choose the one you trust more.

I hope this D-Mannose review will help you to make an informed decision.

Bottom line:


Read Next: My UTI Guides

  1. 8 Holistic Strategies To Prevent UTI
  2. 7 Unexpected Facts About Vaginal Discharge And UTI
  3. Oral Sex And UTI: All You Need To Know
  4. Can I Get a UTI From My Partner?
  5. Ulitmate Guide For Bladder Health Supplements
  6. D-Mannose Brands Review, 2018
  7. Bacterial Biofilms As The Main Cause Of Chronic UTI




  1. Hi im just gonna ask if is it advisable to take D mannose while taking antibiotics? and if your going to take D mannose for long term used does it won’t be a trigger for kidney stones or any crystallized substances in the bladder or kidney in the future?

    • Hi Lye, yep, this should, in theory, help the progress, but always ask your doctor since I’m not a medical professional. Never heard of such thing, what made you ask this question (re: crystallized substances in the bladder or kidney)?

    • Hi Chriss, if you tolerate it well, there are no known to me long-term preventative therapy concerns, but it’s always good to check with your doc. Here is a list of side-effects and here is our Facebook group if you want to ask others about their experience

  2. Hello,

    First of all, thank you so much for providing a lot of valuable and helpful information to the people like me suffering from frequent UTI.

    Following your advise, I have been taking NOW D-mannose pure powder for past one year. It actually worked but unfortunately not 100%. My UTI is always after having sex. So I usually take D-mannose right before and after sex (during 5-7 days after sex) three times a day. I was ok for most times but still got UTI twice a year though I took D-mannose.

    However, difference after taking D-mannose was that my UTI symptom was not much severe but mild. That was really good part.

    I tried to treat the mild UTI symptom to be gone intensively taking D-mannose. But the symptom was never completely gone and I ended up taking anti biotic to be completely free from the symptom.

    Here is my question. I saw a link to below product on the top of your homepage;

    I checked this product’s Amazon review. It looks like a very good product. But I could not find any review on this item on your website.
    Have you ever tried this or heard any comments from other people who tried it before? If so, please share the story.

    Since NOW d-mannose is not always working for me, I am interested in trying this product.

    • Hi Joy, I’m glad you find the info useful, hope it helps in your journey.
      Quite frankly, I don’t think there is much difference between brands, the question is whether they add any fillers that you end up overpaying for. There is no harm in trying. This brand has Hibiscus Flower (Hibiscus sabdariffa) extract added in instead of other more traditional fillers like cranberry extract and looks like they do not use anything else. Majority of distributors buy D-Mannose powder from China, run a thorough lab check (required by FDA), then just fill it in capsules or bags to sell. So you are mostly paying for the method (capsules or bulk) and for their marketing efforts.
      Since your UTIs are triggered by sex, make sure to check out , this will help you to keep the bacteria at bay. Check out this abstract here as well, I think it could be relevant in your case.
      Best of luck!

      • Thank you so much for your reply!

        Could you check the first link (special probiotics) you made? It seems to be linked to a wrong page (but still it was helpful information. Thank you.)
        Please advise me on the special probiotics.

        The second link on abstract was very interesting. Thank you again.

  3. I’m curious about prevention doses in the capsules. Another article of yours that linked to this one said once or twice daily, but you state above the bottle of 120 will only last a month which implies 4 daily for prevention. Can you please clarify?

    • Hi Lacey, thank you so much I actually found an error or typo in an older post where it states that the “prevention dose” is half of a spoon roughly 500 mg” should be 1500mg. I went back and edited it to 1500-2000 mg since this is how much you have powder in a half of a spoon. If you take recommended dose once a day, it will last up to 40 days, if twice a day, then will lasts about 20 days (depends on 1500mg or 2000 mg you are taking). Hope this helps and thank you for asking

    • Hi Donna,
      Unfortunately, unless you have a lab I don’t think it’s possible. Here is a link to methods of production in case if you do!
      Otherwise, I would recommend trying Waterfall D-Mannose that is made from birch trees. Best wishes,

  4. I just read that Bulk D-Mannose is sourced from China. It’s only packaged in the US. I prefer not to have a product from China. You need to do more research before writing these articles. Yes, it is amazing stuff to help UTIs, but I’m not comfortable with your brand recommendations.

    • Hi Sarah,
      I’ll be glad to share a link to a review that you wrote (or more than happy to publish your alternative review here).
      The goals of the post are to look at the top selling D-Mannose products on Amazon. All of them have great reviews from thousands of users. I personally use this brand and have no issues with where they source their raw materials as long as they check every batch for quality and purity, which they do.
      Thanks for taking time to leave your feedback

  5. Hi Anastasia,
    Thank you so very much for caring about not only your own health, but the rest of us, as well. I have been battling UTIs for the past 3 years. I just ordered the following brand of d-mannose and am curious if you are familiar with it. I have been following Dr. Mark Hyman for several years and I am inclined to trust the brands of supplements that he recommends. However, after reading so much of what has been written and posted on your website, I highly value your opinions/recommendations! Thank again for all that you are doing for us!

    Pure encapsulations

    • Hi Sherry,
      Thank you for your comment 🙂 Pure Encapsulations seems like a good product, the only difference is th price (it’s four times more expensive than Bulk Supply’s price). The go for $80 per 100 gram versus $24 for 250 grams 🙂


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