Faction Labs

Deficit Review

Name: Deficit
Brand: Faction Labs
Rating: 6.92 (1 reviews)

0.0/10

SuppsSimplified Score

B · Clinically Mixed

Some ingredients dosed well, others fall short.

Backed by 9 peer-reviewed citations

⚡Energy0.0/10

🧠Mood/Focus0.0/10

🍽Appetite Suppression0.0/10

🔥Fat-burning0.0/10

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Faction Labs

Deficit Review

0.0/10

SuppsSimplified Score

B · Clinically Mixed

Some ingredients dosed well, others fall short.

Backed by 9 peer-reviewed citations

⚡Energy0.0/10

🧠Mood/Focus0.0/10

🍽Appetite Suppression0.0/10

🔥Fat-burning0.0/10

Buy Deficit Compare

Servings / tub

Price per serving

$1.50

Cost per point

$0.22

per formula score point

Caffeine

250 mg

≈ 2.6 cups of coffee

Strengths

Strong fat-burning support
Excellent boost to mood and focus
Genuinely diverse formula covering a lot of ground
A strong, comprehensive effect across energy, mood, and fat-burning
Real appetite/craving support

Watch-outs

Aggressive stimulant content
Appetite suppression is the weakest of its effects
Strictly one dose a day, with no room to take more

Effects Timeline

AI-estimated changes in effects over the first 14 hours after taking the recommended serving.

0–14 hr

AI analysis

Deficit stands out for fat-burning and mental sharpness, backed by a formula that works through a genuinely wide range of mechanisms rather than a narrow one. Appetite control is the one area it doesn't really deliver on, so it's not the pick if curbing hunger is your main goal. It's also a strong stimulant formula with a strict once-a-day limit -- there's no flexibility to take more even if you feel like you need it. Best for: People who want strong fat-burning and mental focus, and don't need much help with appetite.

Ingredient breakdown

Every dose · every gap

Ingredient	Clinically effective dose	Dose in Deficit	Status
Acetyl L-Carnitine	2 g	1.5 g	75%Moderate dose
Carnitine (Tartrate)	2 g	0.5 g	25%Under-dosed
N-Acetyl-L-Tyrosine (NALT)	1 g	0.5 g	50%Under-dosed

Acetyl L-Carnitine1.5 g
75%Moderate dose
Carnitine (Tartrate)0.5 g
25%Under-dosed
N-Acetyl-L-Tyrosine (NALT)0.5 g
50%Under-dosed

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Evidence references

J Int Soc Sports Nutr · 2015 · n=13

Alpha-GPC and power output

Nutrients · 2023 · n=254

Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis

Journal of Clinical Medicine · 2025

Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials

International Journal of Obesity · 2003 · n=489

Chromium picolinate for reducing body weight: Meta-analysis of randomized trials

Phytotherapy Research · 2022 · n=1,002

Does Ashwagandha supplementation have a beneficial effect on the management of anxiety and stress? A systematic review and meta-analysis of randomized controlled trials

Nutrients · 2022 · n=341

The Safety and Efficacy of Citrus aurantium (Bitter Orange) Extracts and p-Synephrine: A Systematic Review and Meta-Analysis

Clinical Nutrition ESPEN · 2020 · n=2,292

Effects of l-carnitine supplementation on weight loss and body composition: A systematic review and meta-analysis of 37 randomized controlled clinical trials with dose-response analysis

Clinical Nutrition ESPEN · 2020 · n=2,292

Effects of l-carnitine supplementation on weight loss and body composition: A systematic review and meta-analysis of 37 randomized controlled clinical trials with dose-response analysis

British Journal of Nutrition · 2013 · n=19

Grains of paradise (Aframomum melegueta) extract activates brown adipose tissue and increases whole-body energy expenditure in men