Butea Superba (Red Kwao Krua)

Butea Superba (Red Kwao Krua): What is it?


Butea Superba, also known as Red Kwao Krua, is an herb traditionally used by Thais for its aphrodisiac qualities. Being rich in phytoandrogens like flavonoids and flavonoid glycosides, the herb is especially suited for and used extensively for increasing virility in males. The substances in Butea Superba can induce arterial dilation, especially in the penile area, because of effects similar to male hormones, thus promoting more intense and longer erections. Taking the herb in the extract form is preferred over consuming the herb directly.

Butea Superba can either be taken orally or used topically. When taken orally, capsules of the powdered form of the herb can be taken either on an empty stomach or with food or beverage. For topical application, a liquid form of the extract is used in the production process. Both methods are able to effectively improve the quality of erections, increase sexual vigor, and boost sexual desire. Butea Superba is the answer for those who want the effects of medication used to treat erectile but prefer natural remedies over pharmacological ones.

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Butea Superba: What it does?

Butea Superba has been used in traditional Thai medicine practices for many years to aid in a myriad of health problems. The herb is generally best-known for its reported aphrodisiac effects and its impact on male sexual vigor. In general, Butea Superba is utilized by men because of its high concentration of a substance known as “Phytoandrogens.” These Phytoandrogens have the ability to mimic male hormones, which is why Butea Superba is believed to give men a boost in areas such as enhanced muscle tone, vigor, vitality, faster recovery times and enhanced sexual performance. It is also traditionally used to help men of all ages deal with erectile dysfunction. Women may also enjoy some of the benefits of this herb for certain health issues, but it does not aid in any kind of sexual rejuvenation or enhancement for women.

Chemical Composition

– Butesuperin A and B – Formononetin – Prunetin – Medicarpin – Daidzein, Genistein and Coumestrol – Procyanidin B2 and B5 – 3,7,3′ Trihydroxy-4′-methoxyflavone



The Side Effects

As with any substance you ingest, there are potential side effects that come with adding Butea Superba to your daily regimen. The key to safely incorporating any new supplement into your diet is moderation and a slow introduction.

Women who are pregnant, attempting to conceive or breastfeeding should consult a healthcare professional before adding Butea Superba to their diets. Presently, there is no reliable way to ensure its safety for these women since it can alter hormone levels, so it is generally advised that pregnant women avoid it.
Additionally, it is possible for Butea Superba to disrupt the body’s normal production of androgens, and it also has the potential to react with other herbs and certain medications, including:
– Muira Puama
– Damiana
– Yohimbe

Currently, there is not enough information available from long-term studies on humans to know for certain what other side effects Butea Superba may induce, but it is generally considered safe in low doses, not over 1,000 mg per day. A medical professional can tell you whether or not adding Butea Superba to your healthcare regimen will be beneficial.

Clinical Information

There is currently almost no clinical information that shows negative side effects associated with taking Butea Superba.

In fact, there have been clinical trials that demonstrate that this herb can help to treat erectile dysfunction, strengthen bones, and even stimulate the production of a substance called telomerase.

Telomerase is responsible for lengthening and protecting the body’s telomeres, which are the protective “caps” on DNA. Telomerase slows the aging process and contributes to a longer, healthier life by preventing the breakdown of cells that naturally occurs due to age.

Official Researches

Many of the positive effects of Butea Superba have been reported by small numbers of people or observed in animal trials. While this isn’t to say that Butea Superba is ineffective, it is important to note that it may not have the same effects on everyone.

1. Effects on Acetylcholine Levels

One screening study of several Thai herbs showed that as little as 0.1 mg of Butea Superba was able to increase the amount of acetylcholine in the body.

Acetylcholine is a neurotransmitter that is responsible for activating muscle movement and keeping muscles like the heart pumping smoothly. It is also an important component of healthy nerve function. In addition to all of this, acetylcholine affects the brain’s ability to repair itself and form new connections, which means it is important for memory and learning.

2. Sexual Vigor

Studies on rats show that Butea Superba is able to enhance penile erections, even in cases of diabetes when erectile functioning is often hindered. In addition, there is moderate anecdotal evidence that confirms that men who take Butea Superba experience higher libidos and enhanced erections.

One study even reported that men who took 100mg of Butea Superba up to two hours before sex experienced effects that were comparable to taking medication used to treat erectile, but there have not been any studies that have replicated these findings.

3. Androgenic Effects

Androgenic activity refers to the male hormones testosterone and androsterone. When taken as an oral supplement, there is some evidence to suggest that Butea Superba temporarily increases testosterone levels in both male and female mice. Androgens are largely responsible for the male sex drive, which is another reason why Butea Superba is able to enhance sexual vigor and improve erectile functioning.

Human testing shows very limited success with increasing testosterone, but there have been reported cases where hair growth increased and DHT levels were significantly higher.

4. Estrogenic Effects

Estrogen is a female hormone that is present in both men and women. Men tend to have much lower levels of estrogen, similar to the way testosterone is present in females in low quantities.

Butea Superba contains certain compounds that are able to inhibit or promote estrogen production, depending on the cellular context.

Raw Materials

Herbal Powder Extracts

Available for purely 100% and mixed extracts, our herbal power extracts offer a variety of benefits for pharmacy, food and skin care use.

Herbal in Liquid Type

A multi-purpose ingredient that can be used effectively in cosmetics production, such as, cream, spray, serum, gel and mask.

Herbal Slide Sheet

An effective ingredient, suitable for food additives or for cooking and boiling.


Raw Materials

Find out more of our raw materials.

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