1 Product identity

Ingredient risk

2 ingredients to use with caution

Arginine Power Super Stack

Name: Arginine Power Super Stack
Brand: NOW Sports

BrandNOW Sports→Other Combinations Capsule 19 ingredients 2 caution DSLD #12854

Net contents: 120 Capsule(s)

Target: Adults and Children 4 years and above

DSLD entry: 2012-08-24

2 Ingredients (19)

IngredientGroupSafety

Vitamin B6Vitamin B6Use with Caution

L-ArginineArginine—

L-CitrullineCitrullineGenerally Safe

L-NorvalineNorvaline—

L-OrnithineOrnithine—

Creatine MonohydrateCreatineGenerally Safe

Yerba Mate extractMate—

Green Tea ExtractGreen Tea—

Guarana Standardized ExtractGuarana —

Gymnema sylvestre extractGymnemaConditionally Safe

Rhodiola extractRhodiola Conditionally Safe

CoQ10Coenzyme Q-10—

OctacosanolOctacosanol—

GelatinGelatin—

Rice FlourRice—

CelluloseCellulose—

Magnesium StearateMagnesium stearateUse with Caution

Stearic AcidStearic Acid—

SilicaSiliconGenerally Safe

Ingredient amounts require the full DSLD label. View full label at NIH DSLD →

⚠️ Use with caution — restricted in some markets

Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…

Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].

3 Safety cross-reference

Vitamin B6 — Use with Caution

L-Arginine — Limited Evidence

⚠ Hypotension

⚠ May worsen herpes outbreaks

Citrulline Malate — Generally Safe

⚠ May lower blood pressure

Creatine — Generally Safe

⚠ Water retention

⚠ Weight gain

Green Tea Extract — Limited Evidence

⚠ HEPATOTOXICITY >800 mg EGCG

⚠ Iron absorption inhibition

Gymnema — Conditionally Safe

⚠ Hypoglycemia with diabetes meds

⚠ Temporarily suppresses sweet taste

Rhodiola — Conditionally Safe

⚠ Insomnia if taken late

⚠ MAOI-like activity

Magnesium — Use with Caution

⚠ Diarrhea (especially oxide)

⚠ Accumulates in renal impairment

Silicon — Generally Safe

⚠ Very low toxicity

4 Label claims

• All Other

• Structure/Function

5 Data source

DSLD ID12854

Full labelView at NIH DSLD →

SourceOffice of Dietary Supplements, NIH

Market statusOn market

Entry date2012-08-24

6 More from NOW Sports

View NOW Sports Safety Scorecard → 49 products

Amino Peptide Amino-9 Essentials Amino-9 Essentials Branched Chain Amino Acids Branched-Chain Amino Acid Powder Branched-Chain Amino Acids

7 Cite this page

Vancouver

Pkhakadze G. Arginine Power Super Stack — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jun 25]. Available from: https://supplement.ge/products/arginine-power-super-stack-12854/

CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.

Analyzed by SupplementIndex

PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD

Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG