Yellow Hulu Kapuas Kratom Strain Review

July 22, 2020 Articles, Kratom Alkaloids, Kratom Blends, Kratom Capsules, Kratom Products, Kratom Research, Kratom Reviews, Kratom Strains, Kratom Tea, Kratom Vendors

Yellow Hulu Kapuas has become a hot commodity online, easily outranking Gold Bentuangie and Yellow Maeng Da as the most bodacious strain of the bunch. But what is it about this enhanced kratom variant that makes it so sublime?

In today’s review, I’ll tell you all about what it is, where it comes from and how it compares to plain leaf. As you’ll see, Yellow Hulu is a real powerhouse and one that’s more than worthy of its status as a consistent bestseller.


Yellow Hulu isn’t technically a strain in the natural sense of the word, rather it refers to any combination of green, red or white vein kratom leaves from the Kapuas Hulu region that are treated to a unique sun-drying or fermentation technique.

Gold and yellow vein kratom powder is infamous its potency, often producing stronger and longer lasting effects. Among the most popular examples of gold and yellow kratom are Gold Bali and Yellow Vietnam. However, Yellow Hulu Kapuas gives them both a run for their money.

Yellow Hulu Kapuas is harvested on a remote sanctuary in the Kapuas Hulu Regency of West Kalimantan. Located mere miles from the Ketungau and Melawi Basins, this diverse reserve provides the evergreen trees with all of the mineral-rich soil and versatile weather conditions necessary to yield superior alkaloid content.

Once Hulu Kapuas Kratom trees have reached optimal maturity, the local kuala-speaking petani carefully select only the largest, most vibrant leaves for further production. When harvesting is complete, the Mitragyna speciosa plant matter is left to dry in the sun.

Exposure to direct sunlight results in photosynthesis which, in turn, leads to a higher concentration of key components such as mitragynine, 7-OH (7-hydroxymitragynine) and paynantheine.

Until recently, Yellow Hulu Kapuas was quite rare, but vendors have begun offering this strain as kratom powder and kratom capsules with multiple sizes available at industry standard prices.


In much the same way that a Maeng Da red vein is transformed into Gold MD, Yellow Hulu Kapuas is achieved by taking raw Green Hulu Kapuas leaves and subjecting them to direct sunlight. This yields an alkaloid profile that tests higher for terpenoid saponins, indole alkaloids, flavonoids and polyphenols.

Just a few grams can induce exhilaration in a matter of 10 minutes or less. This exhilaration typically lasts for upwards of 1 ½ hours before slowly dissipating, only to be replaced by a general sense of warmth and well-being.

In clinical experiments, a 50 mg oral dose of mitragynine, kratom’s most abundant alkaloid, produced motor excitement and giddiness. Mitragynine is the major driving force behind Yellow Hulu Kapuas Kratom and is, therefore, vital to its potential aroma.

More than 40 chemical compounds have been found to be present in the kratom tree. Of these 40, more than 25 are present in the leaves of this Ayurvedic herb. The following is a short list of the substances that power Yellow Hulu Kapuas Kratom:

  • Corynoxine
  • Epicatechine
  • Isomitraphylline
  • Mitraciliatine
  • Mitrafoline
  • Mitraphylline
  • Mitraversine
  • Speciofoline
  • Speciogynine
  • Specionoxine

Although kratom is not approved for medicinal use, many have suggested that it makes for a fine brew when used responsibly. In moderation, users report enhanced motivation, elevated mood, reduction in agitation and a calming sensation that’s at once serene and invigorating.


Due to the significant potency of yellow vein kratom, it is advisable to stick to low or moderate dosages when brewing Yellow Hulu. As a general rule, Green Hulu Kapuas is most effective at approximately 3 to 4 grams.

Given the average efficacy of such a dose, one can deduce that a low to moderate dosage of Yellow Hulu Kapuas would be around 2 to 2.5 grams. The following is a general guideline to Yellow Hulu Kapuas usage:

  • Threshold = 1 gram
  • Low = 1.5 to 2 grams
  • Moderate = 2.5 to 3 grams
  • High = 4 to 6 grams

If you’re about to buy kratom online, be sure to consider some important factors before doing so. One should always take their personal sensitivity into consideration.

Do you have a history of addictive behavior or tolerance to certain medications? If so, you may want to discuss kratom with your physician prior to making a purchase.

Those with preexisting health conditions such as cardiovascular disease, kidney problems or fatty liver disease should avoid kratom use. Larger dosages have been associated with an increased risk of kidney or liver damage. What’s more, chronic kratom use may cause liver failure.

Pregnant and lactating mothers should never consume kratom as it may be detrimental to the health of their child. Remember, this isn’t a medicine and scientific data is limited. Therefore, all users should approach it with the necessary degree of caution.


From what I’ve heard, this unique strain has really sneaked up on some people. One user talked about how disappointed they were with their initial dose of 3.75 grams before increasing their dosage to 4 grams.

This user said, “I tried this a few weeks ago and didn’t get much from it, so I shrugged it off and shelved it…I decided to try it tonight at 4g, and holy shit. That was definitely some of the most potent kratom I’ve ever had.”

This user goes on to say that they underestimated the strength of this strain, writing, “I had a headache when it took it, and it was pretty much gone in a few minutes. Also, usually it take about an hour to feel kratom, but I was already peaking an hour in this time. I went on a walk, and it felt like I was walking on air. Then I got home and it knocked me out completely for a while.

“So glad I tried this again! Next time I’ll probably take a little less, though. I didn’t know 4g could affect me like that anymore!”


As I said in my strains guide, yellow and gold vein kratom can be pretty irresistible, but first-time users should be careful how they brew it. As one of the strongest kratom products on the market, it can instill overwhelming effects in beginners.

The uninitiated should always start with the lowest possible dosage before graduating to a more moderate measurement. Take it from me, you don’t want to clown around with this crazy herb. I learned this the hard way when I sampled Yellow Hulu for the first time.

As a longtime kratom blogger, I thought I was an old hand at this. Consequently, I started by tossing and washing 4 ½ grams and got some serious couch lock. I felt spacey, nauseous, wobbly and weird. Definitely not something I was prepared for, especially not in public (I was working remotely from an internet cafe at the time…embarrassing, to say the least).

After giving it a two-day break and attempting a second dosage, I found my sweet spot to hover somewhere in between two and 2.5 grams. Believe me when I say this stuff makes Maeng Da look like Mountain Dew by comparison.

There are subtle notes to its fragrance which are no doubt due to the prevalence of exotic flavonoids and the taste is just as peculiar. The batch I received was finely textured and free of clumps.

The aroma was outstanding, offering a well-rounded experience that was both galvanizing and giddy. All things considered, I’d place this one in my top 10 kratom strains of 2020.


If you’re looking for a full spectrum brew with a nice fragrance too then this one’s for you. Yellow Hulu Kapuas is a delightful example of a dynamic kratom category. Just be sure to take it slow, lest you end up behaving like a caged animal in a Starbucks. Be safe, be smart and be well.

Bob Freville
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