Research Report: What is Deng Sen?

Banner shows that facts about deng sen extract have been published by IMPRESS

Supplement Alert! with supplement expert Charles Kraft, RN.
Deng Sen is Listed as an Ingredient in my Men’s Supplement...
What is Deng Sen?

 

Think just because an ingredient is printed on the label of your corner store supplement it has to be legit?

 

Think again.  Here's the truth about this often-listed dietary ingredient...

Facts about Rhino pill ingredients Deng Sen Extract
 Deng sen extract on label raises safety concerns.

Federal Regulations state dietary ingredients “must be listed by their common or usual names when present in dietary supplements.”[1]  In the case of men’s specialty supplements, the dietary ingredients are often displayed as a list called a “Proprietary Blend” which lumps all of the ingredients into a single weight.

 

“Deng sen” is listed as an ingredient in the proprietary blends of dozens of supplements currently marketed in the United States.  100% OF THE BRANDS LISTING "DENG SEN" AS AN INGREDIENT HAVE BEEN PROVEN TO BE LABELED AS U.S. MADE, BUT ALL ARE ACTUALLY IMPORTED FROM CHINA.  Rhino 7 Pills (pictured) and dozens of other similar-looking "Rhino pills" are common examples."

    Rhino 7 lists deng sen as an ingredient

Questions about Deng sen were raised at MaxLabs US during a research project that explored hundreds of ingredients listed as content for competitive male enhancement supplements.  The competitive analysis included: 1) clinical assessment of ingredients [potential therapeutic value, presence & merit of supporting scientific literature], 2) a weights & measures analysis and 3) wholesale ingredient price benchmarking.

 

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World Health Organization Medicinal Plants in China

An extensive search of published literature for information on “Deng sen” included sources such as the World Health Organization’s Medicinal Plants in China[2] and The Encyclopedia of Traditional Chinese Medicines[3], but was expanded to include other sources[4],[5],[6] after the initial search for the term “Deng sen” yielded no results.  The expanded search also failed to identify a material of this name.

Drum of generic chinese raw materials used in men's supplements

Compliance with Good Manufacturing Practices (cGMP) is another consideration regarding this questionable ingredient. "Identification testing" of ingredients is a routine part of compliant processes in which incoming raw materials are compared to commercially acquired "reference materials" to verify authenticity of the ingredient prior to use in production of a finished supplement.  Such testing is mandatory at top-tier manufacturers.

It was discovered that no “reference standard materials” are available from leading suppliers for a material named “Deng sen.” This would serve as a barrier to the use of any material labeled as Deng sen at cGMP manufacturing facilities in the United States.[7],[8] Deng sen extract not available through strategic sourcing channels

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Similarly, during price benchmarking, the materials sourcing team, well-versed in global procurement of raw materials used in dietary supplements, could not find “Deng sen” offered for sale via any channel.

 

Evaluated brands listing “Deng sen” as an ingredient include “Extreme Diamond” and “Rhino 7” (produced by Guangzhou Together Trade Co., Ltd. & Beauty Technology Co., Limited, Guangdong, China).  Both brands have been subjected to recalls by the FDA for containing undeclared active pharmaceutical ingredients which are untested and unstudied.[9]

Extreme Diamond pills list deng sen as an ingredient

Conclusions: “Deng sen” is a fictitious ingredient name Chinese manufacturers place on the Supplement Facts Panels of dietary supplements promoted for sexual enhancement.  For consumer protection, federal interception of imported products with fictitious and/or non-compliant labeling may serve as an effective adjunct to the practice of confiscating imported products found to contain adulterants.

 Chinese sex pills containing deng sen

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[1] 21 CFR 101.36(b)(2)(iii)(F) and (b)(3)

[2] "Medicinal Plants in China: A Selection of 150 Commonly Used Species." The Institute of Chinese Materia Medica / China Academy of Traditional Chinese Medicine. World Health Organization, n.d. Web. 26 Nov. 2016. <http://iris.wpro.who.int/handle/10665.1/6737>.

[3] Zhou, J., Xie, G., et al. (2011). Encyclopedia of Traditional Chinese Medicines (Vol. 6). Berlin, Heidelberg: Springer.

[4] Brickell, C., Zuk, J. (2004). The American Horticultural Society A-Z Encyclopedia of Garden Plants. London, UK: Dorling Kindersley Pub.

[5] "Independent Analysis on Supplements & Nutrition." Independent Analysis on Supplements & Nutrition. Examine.com, n.d. Web. 26 Nov. 2016. <https://examine.com/>.

[6] Bensky, D. & Clavey, S. (2015). Chinese Herbal Medicine: Materia Medica (Portable 3rd Edition). Seattle, WA: Eastland Press.

[7] “Ingredients/Standards.” Chromadex. Chromadex.com, Web. 27 Nov. 2016. <https://www.chromadex.com/search?SearchParam=deng%20sen>.

[8]  “Analytical/Chromatography.” Sigma Aldrich Diagnostics. sigmaaldrich.com, Web. 27 Nov. 2016. <http://www.sigmaaldrich.com/catalog/search?term=deng+sen&interface=All&N=0+220003052&mode=match%20partialmax&lang=en&region=US&focus=site>

[9] Tainted Sexual Enhancement Products. U.S. Food and Drug Administration, (n.d.). Retrieved November 27, 2016, from http://www.fda.gov/Drugs/ResourcesForYou/Consumers/BuyingUsingMedicineSafely/MedicationHealthFraud/ucm234539.htm

8 comments

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Duker

I tried to buy Rhino pills wholesale and ended up on Skype with a lady calling herself Ms Cho. Wanted a DHL shipping number and a cashiers check for a grand to send boxes. A big lie.

Jimbo

The Chinese are making those Rhinos with the American flag??? That has got to stop. I’ll never buy another Rhino pill!

Jen

This was awesome information. I will make sure to pass it on to my friends who buy these supplements today.

Jean

Great information. Thanks for educating us.

Julie Carreira

This was very informative information. Thank you!

Kristen

You read about this stuff being recalled constantly. Why don’t they just ban it altogether? If they lie about where it comes from, why would they be honest about what’s inside the pills? I won’t let my husband take the ones from the convenience stores- no way.

Steven C.

Very technical.

Curtis

Wow! Very informative. I always thought the FDA was checking on this sort of thing. Will keep an eye out for this fake ingredient. Thanks for this information!

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