6 NON-STIMULANT LABELS COMPARED

Current formulas, evidence limits, availability, and caffeine caveats

Updated: August 23, 2026 | 12 min read

How we review + disclose: We compare current product pages, label transparency, stated stimulant load, availability, and official health guidance before linking out. Some outbound links are affiliate links. This guide is informational and not medical advice.

Toned midsection representing healthy body composition without stimulants

People compare non-stimulant products to avoid adding a large caffeine dose, especially when coffee, pre-workout, or evening training is already part of the day. “Stim-free” describes the stimulant position of a formula; it does not prove weight-loss efficacy, zero side effects, or zero naturally occurring caffeine.

We rechecked official product pages on August 23, 2026 and compared their labels with NIH weight-loss supplement guidance. NIH says there is little scientific evidence that weight-loss supplements work and describes the average weight effects of CLA and carnitine as small.

Why Choose Stimulant-Free?

Not sure whether you are actually a stim-free case? Use the Stim Fit Checker before buying. It adds current caffeine load, pre-workout use, sleep, training time, and medical red flags instead of assuming caffeine-free is the answer for everyone.

In This Guide

  1. Quick Picks: Top 3 Stim-Free Options
  2. Comparison Table
  3. Detailed Product Reviews
  4. Non-Stim Ingredients That Work
  5. Who Should Choose Stim-Free?
  6. Frequently Asked Questions

What we verify before calling a product “stim-free”: the current manufacturer's stimulant claim, whether green tea is identified as decaffeinated, ingredient amounts, availability, and whether the label has changed. People with strong caffeine sensitivity should still inspect the bottle for residual or naturally occurring caffeine.

QUICK PICKS: TOP 3 STIM-FREE OPTIONS

COMPARISON TABLE

Product Caffeine Key Ingredients Servings Best For
EVL LeanMode 0mg CLA, Garcinia, L-Carnitine, Green Tea 50 Best value
Transparent Labs Stim-Free 0mg Forskolin, EGCG, Capsimax 60 Current test links
1st Phorm L-Carnitine 0mg Powder formula; verify current label See label Current format check
Legion Phoenix Stim-Free 0mg Green Coffee, Irvingia, Green Tea, 5-HTP See label Reformulated formula
Jacked Factory Lean XT 0mg ALCAR, Green Tea, Coleus 30 Four-ingredient comparison
NutraKey CLA 1250 0mg CLA 1250mg (80% active) 90 Sold out when checked

DETAILED PRODUCT REVIEWS

Multi-Ingredient Label

EVL LeanMode 0mg Caffeine

The current EVL LeanMode page lists five active ingredients and identifies the product as stimulant-free. The disclosed amounts make comparison possible, but the label does not establish meaningful weight-loss results.

Caffeine
0mg
Servings
50
Form
Capsules
Caps/Serving
3

Key Ingredients (Per 3 Capsules)

CLA (Conjugated Linoleic Acid) 1500mg Garcinia Cambogia (HCA) 500mg Green Coffee Extract 500mg Acetyl L-Carnitine 500mg Green Tea Extract (decaf) 250mg

NIH says CLA and carnitine might produce only a small average weight effect and that garcinia cambogia has little to no effect. Although the green tea extract is labeled decaffeinated, people with strong caffeine sensitivity should still inspect the current bottle.

Pros

  • Five active amounts are disclosed
  • Manufacturer identifies the formula as stimulant-free
  • Current official product page available

Cons

  • No energy boost
  • Limited or small weight-loss evidence for several ingredients
  • 3 capsules per serving
  • Some proprietary aspects
Current Testing Links

Transparent Labs Body Recomp Stim-Free No Added Caffeine

The current Body Recomp Stim-Free page lists no added caffeine and links manufacturer testing documents. It is not the same formula as the stimulant version, and the official page showed it as sold out when checked on August 23, 2026.

Caffeine
0mg
Servings
60
Form
Capsules
Caps/Serving
2

Key Ingredients (Per 2 Capsules)

ForsLean Forskolin 250mg Green Tea Extract 300mg (50% EGCG) Capsimax (Cayenne) 50mg Paradoxine Grains of Paradise 50mg

The label lists 300mg of green tea extract standardized to 50% EGCG, which equals 150mg EGCG, plus 250mg ForsLean. NIH says the weight effect of green tea is small and the evidence for forskolin is insufficient. “Stim-free” should not be read as proof that green tea extract contains absolutely no residual caffeine.

Pros

  • No proprietary blends
  • Only 2 capsules per serving
  • Official page links current testing documents

Cons

  • Premium price
  • Only from brand's website
  • Sold out on the official page when checked
  • Limited evidence for meaningful weight loss
Current Format Check

1st Phorm L-Carnitine Check Current Label

1st Phorm's current official L-Carnitine product is a powder, not the liquid formula previously described here. The page directs users to mix one scoop and use it twice daily; check the current Supplement Facts image for exact amounts before comparing it with older listings.

Caffeine
See label
Servings
See label
Form
Powder
Directions
1 scoop

Current Product Format

L-Carnitine powder One-scoop serving Exact amounts: verify current label

NIH says carnitine might help people lose only a small amount of weight. Because the format changed, this page does not carry the old liquid amounts forward to the current powder.

Pros

  • Current powder format identified
  • Official product page available

Cons

  • Exact current amounts require label-image review
  • Older liquid-formula details no longer apply
Reformulated Label

Legion Phoenix Stim-Free 0mg Caffeine

The current official Phoenix Stim-Free page shows a substantially different 3-capsule formula from the older version that was previously listed here. The current page links research citations, but citations for ingredients do not prove that the finished product causes meaningful weight loss.

Caffeine
0mg
Servings
30
Form
Capsules
Caps/Serving
3

Key Ingredients (Per 3 Capsules)

Green Coffee Bean Extract 500mg Irvingia gabonensis 300mg Green Tea Extract 250mg Grains of Paradise 30mg 5-HTP 150mg

The current ingredients include green coffee, Irvingia, green tea, grains of paradise, and 5-HTP. NIH says there is not enough reliable evidence for meaningful weight loss from many common supplement ingredients, while 5-HTP can interact with medications; inspect the complete warnings before considering this formula.

Pros

  • Current ingredient amounts disclosed
  • Research citations linked by manufacturer
  • Three-capsule serving

Cons

  • Only 30 servings
  • 5-HTP may interact with medications
  • Formula differs materially from older listings
Four-Ingredient Label

Jacked Factory Lean-XT 0mg Caffeine

Lean-XT is a four-ingredient stimulant-free formula from Jacked Factory. The current official label lists higher ALCAR and green tea amounts than the older formula previously shown on this page and adds a Coleus extract.

Caffeine
0mg
Servings
30
Form
Capsules
Caps/Serving
2

Key Ingredients (Per 2 Capsules)

Acetyl L-Carnitine 750mg Green Tea Extract 500mg Coleus forskohlii 150mg (30mg forskolin) BioPerine 5mg

NIH says carnitine's average weight effect is small, green tea's effect is small, and forskolin did not affect body weight in a small trial. The manufacturer markets the formula as stimulant-free; inspect the current green tea label if trace caffeine is a concern.

Pros

  • Only 2 capsules needed
  • Current amounts are disclosed
  • Transparent label

Cons

  • Simpler formula
  • Lower ingredient variety
  • Only 30 servings per 60-capsule bottle
  • Limited weight-loss evidence for included ingredients
Single Ingredient

NutraKey CLA 1250 0mg Caffeine

NutraKey's official CLA 1250 page remained live but showed the product as sold out when checked on August 23, 2026. The listing is retained to explain the label and availability, not as an in-stock recommendation.

Caffeine
0mg
Servings
90
Form
Softgels
CLA/Serving
1000mg active

Key Ingredients (Per Softgel)

CLA (80% Active Isomers) 1250mg

The official listing describes 1250mg of CLA per softgel standardized to 80% active isomers. NIH says CLA might help people lose only a very small amount of weight and body fat; this page does not turn research amounts into a dosing recommendation.

Pros

  • Single-ingredient label
  • 90 servings per bottle
  • 80% active isomers disclosed

Cons

  • Single ingredient only
  • Sold out on the official page when checked
  • NIH describes the average weight effect as very small

NON-STIM INGREDIENT EVIDENCE

These ingredients are common on stim-free labels, but a biological role or marketing mechanism is not the same as evidence of meaningful weight loss.

What "stim-free" means (and what to watch for)

“Non-stimulant” usually means no added caffeine or stimulant blend. Some formulas still contain green tea extract, which can have residual naturally occurring caffeine unless the label says it is decaffeinated. Read the current Supplement Facts panel.

How to use stim-free products effectively

CLA (Conjugated Linoleic Acid)

NIH finding: very small average effect

CLA is a fatty acid found naturally in meat and dairy. NIH says it might help people lose only a very small amount of weight and body fat and can cause digestive side effects.

L-Carnitine

NIH finding: small average effect

Carnitine has a biological role in energy production, but NIH says weight-loss studies show only a small average effect.

Green Tea Extract (Decaf)

NIH finding: small effect; extract risks

NIH says green tea might help with a small amount of weight loss. Concentrated extracts can cause side effects and have been linked to liver damage in some people.

Forskolin

NIH finding: insufficient evidence

Forskolin comes from Coleus forskohlii. NIH says it has not been studied much for weight loss and did not affect body weight in a small trial.

Garcinia Cambogia (HCA)

NIH finding: little to no effect

Garcinia cambogia contains hydroxycitric acid. NIH says it has little to no effect on weight loss.

Capsimax (Cayenne Extract)

NIH finding: not enough research

Capsicum extracts are marketed for thermogenesis. NIH says there is not enough research to know whether capsicum helps people lose weight.

Glucomannan (Fiber)

NIH finding: little to no effect

Glucomannan is a soluble fiber marketed for fullness. NIH says it has little to no effect on weight loss and can cause gastrointestinal side effects.

WHO SHOULD CHOOSE STIM-FREE?

A stim-free label may be worth comparing for:

Evening Exercisers

People training later may prefer not to add caffeine close to bedtime. Check for naturally occurring caffeine and follow the current timing directions.

Caffeine-Sensitive Individuals

People vary in caffeine sensitivity. A product with no added caffeine can reduce stimulant load, but the rest of the label still matters.

Pre-Workout Stackers

A no-added-caffeine formula avoids adding another large stimulant dose. Combining supplements can still create ingredient overlap or interactions, so compare both labels.

Those Cycling Off Stimulants

Caffeine tolerance can build. Reducing stimulant intake is a separate decision from whether a non-stimulant weight-loss product is useful.

Anyone Seeking Long-Term Use

No product should be assumed appropriate indefinitely. Follow the label and review long-term use with a qualified clinician when medications or health conditions are involved.

FREQUENTLY ASKED QUESTIONS

Do non-stimulant fat burners actually work?
The NIH Office of Dietary Supplements says there is little scientific evidence that weight-loss supplements work. It describes average weight effects from CLA and carnitine as small and says evidence for several other common ingredients is limited or shows little to no effect.
Can I take non-stimulant fat burners before bed?
Do not assume every product labeled stimulant-free is appropriate before bed. Check the full label for naturally occurring caffeine, other active ingredients, interactions, and the manufacturer's timing directions.
Should I stack multiple non-stim ingredients?
Do not assume multiple non-stimulant ingredients are safe to combine. Overlap, side effects, and medication interactions can still occur; compare every label and ask a qualified clinician when relevant.
How long until I see results?
There is no reliable universal timeline. NIH says evidence that weight-loss supplements work is limited, so do not attribute weight changes to a stim-free product without reliable evidence.
Are stim-free fat burners less effective?
The evidence varies by ingredient, and a stim-free label is not proof of effectiveness. Its clearest distinction is avoiding an added stimulant dose, not guaranteed fat loss.
Can I stack stim-free fat burners with coffee?
A product with no added caffeine does not increase caffeine by design, but green tea extracts can contain residual caffeine and other ingredients can interact with medications or health conditions. Check both labels and every caffeine source.

THE BOTTOM LINE

The clearest benefit of these labels is avoiding a large added caffeine dose—not proven fat loss. EVL LeanMode provides a current multi-ingredient label; Transparent Labs Body Recomp Stim-Free links current testing but was sold out when checked; 1st Phorm now sells a powder rather than the old liquid format.

Use official product pages to verify the current bottle and availability, and use NIH guidance to keep the limited evidence in view.

Looking for stimulant options? Check our full fat burner guide.