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PreFo Extremely Concentrated Pre-Workout Candy Keys

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This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Citrulline malate and agmatine sulphate have moderate evidence for supporting blood flow and pump. Caffeine is strongly supported for enhancing alertness and athletic performance, while French pine bark extract and acetyl-L-carnitine have more limited research regarding acute exercise performance. Overall, these ingredients target energy and vascularity through established pharmacological pathways.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for PreFo Extremely Concentrated Pre-Workout Candy Keys
Open Full PDF View on NIH DSLD →
Details

Label Data

5.3 Gram(s)
Serving Size
50
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 2000.0mg (275 products)
Market median: 500.0mg (861 products) 61 studies (A:4, B:13)
Agmatine Sulphate
250 mg
French Pine bark extract
200 mg
200 mg
Market median: 180.0mg (239 products) 49 studies (A:1, B:19)
Bacopa monnieri extract
125 mg
100 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)
Market median: 450.0mg (390 products) 160 studies (A:0, B:63)

Other Ingredients

Artificial Fruit Punch Flavor Sodium Bicarbonate Sucralose Tricalcium Phosphate Beet
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Recommended Dose: Mix 1 scoop in 250ml (8oz) of water and consume 15-30 minutes before training.

Warnings & Precautions

Warning: Consult a health care practitioner prior to use if you are following a low protein diet, are taking lithium, Levodopa, nitrates, or medication to treat erectile dysfunction; or if you have liver or kidney disorder, epilepsy, high blood pressure, glaucoma and/ or detrusor instability (overactive bladder syndrome). Consumption with natural health products (e.g. bitter orange extract, synephrine, octopamine, ephedra) which increase blood pressure, or other caffeine containing products (e.g. medications, coffee, tea, colas, guarana, mate) is not recommended. Consult a health practitioner prior to use if you are of child bearing age, have cardiovascular disease or hypertension, diabetes, prostate disorders, or are taking prescription medications. Do not use if you are pregnant, breastfeeding, of if you are taking blood pressure medications (either hypertensive or antihypertensive), thyroid medications, sympathomimetic, monoamine oxidase inhibitors (MAOIs), decongestant-containing cold preparations (i.e. phenylephrine or pseudoephedrine), products containing ephedra or ephedrine, or other medications which increase blood pressure.

This product is not intended as a substitute for sleep. May cause paresthesia (pins and needles), headaches, nausea, gastrointestinal discomfort, palpitations and diarrhea. Hypersensitive/ allergy is known to occur, in which case, discontinue use. May result in weight gain. For occasional use only.

Warning: Not for children.

Warning: Do not exceed 2 servings per day.

Formulation Notes

Gluten free Sugar free Dye free

PreFo 5.2g per scoop Candy Keys Artificially flavored

Additional Information

To avoid clumping & hardening, place in freezer after opening.

SL site licensed Manufactured at a site licensed facility 15 years of integrity

cGMP Current Good Manufacturing Practices

Award winning taste!

Store in freezer after opening.

Taste the insanity

Metadata

Product Details

UPC / SKU8 21008 00082 9
DSLD Entry Date2022-06-16
Product TypeOther Combinations
FormPowder
BrandMagnum
DSLD ID263197
Data Updated2026-04-11
Research

Research Evidence

12
Research Sources
45
Avg Quality
6
Rct
5
Clinical Trial
1
Meta Analysis
C Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials
Meta Analysis Journal of the International Society of Sports Nutrition 2021 PubMed DOI
C Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.
Rct Nutrients PubMed DOI
C Effects of Acute Citrulline Malate Supplementation on CrossFit® Exercise Performance: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Study.
Rct Nutrients PubMed DOI
C Impact of L-Citrulline Supplementation and HIIT on Lipid Profile, Arterial Stiffness, and Fat Mass in Obese Adolescents with Metabolic-Dysfunction-Associated Fatty Liver Disease: A Randomized Clinical Trial.
Rct Nutrients PubMed DOI
C Effect of L-Citrulline Supplementation on NAFLD in Adolescents With Obesity
Clinical Trial ClinicalTrials.gov 2021
C Effects of L-Citrulline or Citrulline-malate on Neuromuscular Performance in Resistance-trained Adults
Clinical Trial ClinicalTrials.gov 2022
C Acute effects of Nitrosigine® and citrulline malate on vasodilation in young adults.
Rct Journal of the International Society of Sports Nutrition PubMed DOI
C Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.
Rct International journal of sports physiology and performance PubMed DOI
C Acute effects of combined supplementation of L-arginine and citrulline malate on aerobic, anaerobic, and CrossFit exercise performance.
Rct Scientific reports PubMed DOI
C L-Citrulline in Peripheral Artery Disease
Clinical Trial ClinicalTrials.gov 2016
View all evidence for Citrulline →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.