NRG X Labs Red Stinger Black Label Review

Editor's Review: 3.5 / 5.0

What You Should Know

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NRG-X Labs Red Stinger Black Label is one of the stronger stimulants we have reviewed. Not only does the supplement include a long list of stimulants in a proprietary blend, the manufacturer openly adds more caffeine outside of the blend. The product description warns that the supplement will not work if the user is not willing to work hard, but that is the case with every supplement. NRG-X Labs does not sell products directly and thus no prices are listed for products. Consumers are expected to trust an outside company to sell the supplement at the right price. This requires the dieter shop around, spending more time looking for the best price.

List of Ingredients

Chromium Picolinate, Niacin, Vitamin B5, Vitamin B6, Vitamin B12, Calcium Carbonate and Caffeine.

RS Black Core: 1,3-Dimethylamylamine (Geranium [Stem]), Green Tea Extract (98% polyphenols), L-Tyrosine, Caralluma Fimbriata 20:1 extract, Phenylethylamine hydrochloride (PEA), Oxyphenylon (Rubus Idaeus) 99% Ketones, Guggulipids (10% guggulesterones), Zingiber Officinale (5% gingerols), Bitter Orange Extract (30% synephrine), N-Acetyl L-Tyrosine (NAT), Coleus Forskohlii (20% forskolin), Cacao Extract (8% theobromine , White Willow Bark Extract (15% salicin), 2-(3,4- dihydroxyphenyl)- 3,5,7- trihydroxy- 4H- chromen- 4-one, Kelp (brown algae), Alpha Lipoic Acid, Black pepper Extract (Bioperine).

Product Features

Chromium is the first ingredient and one of the most effective. Chromium is proven to help control appetite by smoothing out spikes and drops in blood glucose. B vitamins are important for energy metabolism, so these are commonly found in all fat burning and energy supplements.

At the “core” of NRG-X Labs Red Stinger Black Label are stimulants and more stimulants. Caffeine, Geranium Stem, Green Tea Extract, Bitter Orange and Cacao Extract all have stimulating effects. In addition to the caffeine included in the proprietary blend, there is 125 mg more.

Phenylethylamine HCL or PEA is another ingredient of concern. This ingredient is commonly used to boost mood, but that is not a safe choice for users who have a history of depression, anxiety or other mental conditions. PEA is known to effect anti-depressant and other mental prescription medications.

White willow bark means the company is trying to reinvent the ECA stack without the Ephedra. This is common and ineffective. There is no replacement herb for Ephedra.

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  • Ingredients are simple to find on the NRG-X Labs website.
  • Caffeine is a proven weight loss ingredient.
  • Green tea is clinically proven to boost metabolism.


  • Far too many stimulants for the average dieter.
  • No price on the official website.


NRG-X Labs Red Stinger Black Label is not for the average dieter. The massive amount of stimulants will cause irregular heart rate, increased blood pressure, jitters, nausea and vomiting for some dieters. This is not a chance a dieter has to take to lose weight.

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