Force Factor LeanFire® PM, Nighttime Fat Burner, 60 Vegetable Capsules supplement bottle
Force Factor

LeanFire® PM, Nighttime Fat Burner, 60 Vegetable Capsules

What We Researched
6 active ingredients analyzed · 4 inactive ingredients decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
90
Product Score Excellent
67
Brand Score Fair

Product Analysis

Transparency Very Good

Supplement Facts

IngredientAmount% DV
Vitamin B6 (as Pyridoxine HCL) 5 mg 294%
Vitamin D (as Cholecalciferol) (3,360 IU) 84 mcg 420%
Zinc (as Zinc Arginate Chelate) 12 mg 109%
Chromium (as Chromax® Chromium Picolinate) 100 mcg 286%
Overnight Burn and Revitalize Complex 1,091 mg *
Sinetrol® (Pomelo (Citrus grandis Osbeck)Extract (fruit), Grapefruit (Citrus paradisi Macfad) Extract (fruit), Orange (Citrus sinensis Osbeck) Extract (fruit), Guarana (Paullinia cupana Kunth) Extract (seed), Orange (Citrus sinensis Osbeck) Concentrate (fruit)), Green Coffee(Coffea robusta) Extract (bean), L-Carnitine Tartrate,White Kidney Bean (Phaseolus vulgaris) Extract (bean), Valerian (Valeriana officinalis) Extract (root),Hops (Humulus lupulus) Extract (aerial parts), Lemon Balm (Melissa officinalis) Extract (leaf), Green Tea(Camellia sinensis) Extract (leaf) (std. to EGCG),L-Theanine, L-Tryptophan, Griffonia simplicifolia Extract (seed) (std. to 5-HTP), Melatonin (1 mg)
Bioavailability Very Good

Absorption Rating

  • Vitamin B6 (as Pyridoxine HCL) Fair
  • Vitamin D (as Cholecalciferol) (3,360 IU) Good
  • Zinc (as Zinc Arginate Chelate) Fair
  • Chromium (as Chromax® Chromium Picolinate) Good
  • Sinetrol® (Pomelo (Citrus grandis Osbeck)Extract (fruit), Grapefruit (Citrus paradisi Macfad) Extract (fruit), Orange (Citrus sinensis Osbeck) Extract (fruit), Guarana (Paullinia cupana Kunth) Extract (seed), Orange (Citrus sinensis Osbeck) Concentrate (fruit)), Green Coffee(Coffea robusta) Extract (bean), L-Carnitine Tartrate,White Kidney Bean (Phaseolus vulgaris) Extract (bean), Valerian (Valeriana officinalis) Extract (root),Hops (Humulus lupulus) Extract (aerial parts), Lemon Balm (Melissa officinalis) Extract (leaf), Green Tea(Camellia sinensis) Extract (leaf) (std. to EGCG),L-Theanine, L-Tryptophan, Griffonia simplicifolia Extract (seed) (std. to 5-HTP), Melatonin (1 mg) Good
Other Ingredients Excellent

Fillers & Additives

  • Hypromellose
  • Dicalcium Phosphate
  • Vegetable Magnesium Stearate
  • Silicon Dioxide
Efficacy Excellent

Dosage Analysis

  • Vitamin B6 (as Pyridoxine HCL) 5 mg Effective
  • Vitamin D (as Cholecalciferol) (3,360 IU) 84 mcg Effective
  • Zinc (as Zinc Arginate Chelate) 12 mg Effective
  • Chromium (as Chromax® Chromium Picolinate) 100 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin B6 (as Pyridoxine HCL) 5 mg 294%
Vitamin D (as Cholecalciferol) (3,360 IU) 84 mcg 420%
Zinc (as Zinc Arginate Chelate) 12 mg 109%
Chromium (as Chromax® Chromium Picolinate) 100 mcg 286%
Overnight Burn and Revitalize Complex 1,091 mg *
Sinetrol® (Pomelo (Citrus grandis Osbeck)Extract (fruit), Grapefruit (Citrus paradisi Macfad) Extract (fruit), Orange (Citrus sinensis Osbeck) Extract (fruit), Guarana (Paullinia cupana Kunth) Extract (seed), Orange (Citrus sinensis Osbeck) Concentrate (fruit)), Green Coffee(Coffea robusta) Extract (bean), L-Carnitine Tartrate,White Kidney Bean (Phaseolus vulgaris) Extract (bean), Valerian (Valeriana officinalis) Extract (root),Hops (Humulus lupulus) Extract (aerial parts), Lemon Balm (Melissa officinalis) Extract (leaf), Green Tea(Camellia sinensis) Extract (leaf) (std. to EGCG),L-Theanine, L-Tryptophan, Griffonia simplicifolia Extract (seed) (std. to 5-HTP), Melatonin (1 mg)

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$15$14$13$12$11 Mar 12 $13.49
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Force Factor

Founded 2009 · Boston, Massachusetts, USA · 219 products · forcefactor.com/

Certifications

1 certification
Consumerlab Verified Source

Transparency

3 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source

Violation History

4 incidents
Lawsuit Misrepresenting the dosage amounts of certain supplements on their product labels.2024Source
Prop 65 Lead2023-08-08Source
Lawsuit Deceptive marketing and illegal billing practices.2020Source
Lawsuit Misleadingly marketing Force Factor Pure BCAA as a dietary supplement that increases protein synthesis to build muscle.2018Source
Related Supplements
Frequently Asked Questions
Is Force Factor LeanFire® PM, Nighttime Fat Burner a good supplement?

Force Factor LeanFire® PM, Nighttime Fat Burner, 60 Vegetable Capsules received a product quality score of 90/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 6 active ingredients with 30 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Force Factor, holds a brand trust score of 67/100 with 1 verified certifications including Consumerlab.

What are the ingredients in Force Factor LeanFire® PM, Nighttime Fat Burner?

Force Factor LeanFire® PM, Nighttime Fat Burner contains 6 active ingredients: Vitamin B6 (as Pyridoxine HCL) (5 mg), Vitamin D (as Cholecalciferol) (3,360 IU) (84 mcg), Zinc (as Zinc Arginate Chelate) (12 mg), Chromium (as Chromax® Chromium Picolinate) (100 mcg), Overnight Burn and Revitalize Complex (1,091 mg), Sinetrol® (Pomelo (Citrus grandis Osbeck)Extract (fruit), Grapefruit (Citrus paradisi Macfad) Extract (fruit), Orange (Citrus sinensis Osbeck) Extract (fruit), Guarana (Paullinia cupana Kunth) Extract (seed), Orange (Citrus sinensis Osbeck) Concentrate (fruit)), Green Coffee(Coffea robusta) Extract (bean), L-Carnitine Tartrate,White Kidney Bean (Phaseolus vulgaris) Extract (bean), Valerian (Valeriana officinalis) Extract (root),Hops (Humulus lupulus) Extract (aerial parts), Lemon Balm (Melissa officinalis) Extract (leaf), Green Tea(Camellia sinensis) Extract (leaf) (std. to EGCG),L-Theanine, L-Tryptophan, Griffonia simplicifolia Extract (seed) (std. to 5-HTP), Melatonin (1 mg). Notable high-dose ingredients include Vitamin B6 at 294% DV, Vitamin D at 420% DV, Chromium at 286% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Force Factor LeanFire® PM, Nighttime Fat Burner safe to take?

Force Factor LeanFire® PM, Nighttime Fat Burner, 60 Vegetable Capsules has been analyzed for ingredient safety across all its components. All 4 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Force Factor a trustworthy supplement brand?

Force Factor receives a brand trust score of 67/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2009 and headquartered in Boston, Massachusetts, USA, the company offers 219 products in their lineup. They hold 1 verified certifications including Consumerlab. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Force Factor has 4 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.