🍊 LIMITED TIME: Save Up to $180 — Free US Shipping + 2 Bonus E-Books on 3 & 6 Bottle Orders · 180-Day Guarantee
CitrusBurn® is a 100% natural orange peel thermogenic supplement made in the USA. Take 1 capsule daily to target thermogenic resistance and support fat burning, energy and appetite control. Backed by 15,200+ verified reviews, 7 clinically-studied botanical ingredients, and a 180-day money-back guarantee. Buy CitrusBurn from $49/bottle. Reviewed by Dr. Amanda Foster, RD MS — Registered Dietitian Nutritionist
🍊 #1 Orange Peel Thermogenic USA 2026
Buy CitrusBurn — The Supplement That Restores Your Body's Fat-Burning Ability
CitrusBurn® is a natural thermogenic weight loss supplement built around concentrated Seville orange peel extract — the source of p-synephrine — and six complementary botanical ingredients. It is specifically formulated for adults over 35 experiencing thermogenic resistance: the age-related decline in Beta-3 adrenergic receptor sensitivity that makes conventional fat burners progressively less effective. CitrusBurn targets the upstream metabolic signalling pathway to restore fat-burning responsiveness rather than force calorie output with stimulants.
After 35, your metabolism does not stop working — its fat-burning receptors stop responding. More caffeine does not fix receptor desensitisation. CitrusBurn's citrus peel compounds target those receptors directly, resetting the metabolic signal that tells stored fat to release.
p-Synephrine from Seville orange activates Beta-3 adrenergic receptors in fat tissue — releasing stored fat as fuel
Berberine + Naringenin activate AMPK — the metabolic master switch that shifts the body from fat storage to fat burning
Green Tea EGCG increases thermogenesis — clinical studies show up to 4% increase in 24-hour calorie expenditure
Rhodiola-class adaptogens (Korean Red Ginseng) reduce cortisol-driven fat storage around the abdomen
100% natural · Non-GMO · Soy-free · Gluten-free · Made in USA · GMP-certified · 1 capsule daily
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Reviewed by Dr. Amanda Foster, RD MSRegistered Dietitian · Integrative Metabolic NutritionCitrusBurn's formula reflects current evidence on Beta-3 adrenergic receptor modulation, AMPK activation and thermogenic signalling. Citations from the International Journal of Medical Sciences, Metabolism and Phytomedicine confirm the mechanism of action for each active compound.✓ FDA-Registered Facility · GMP-Certified · Made in USA
⭐ 4.8/5 Verified Rating👥 15,200+ Customer Reviews🍊 #1 Trending Thermogenic USA 2026🛡️ 180-Day Guarantee🚚 Free US Shipping
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Dr. Amanda Foster, RD MS
Registered Dietitian · MS in Integrative & Functional Nutrition · 12 Years Clinical Experience in Metabolic Health
"CitrusBurn's core mechanism — targeting Beta-3 adrenergic receptors via p-synephrine from Seville orange peel — is grounded in legitimate pharmacological research. Unlike caffeine-based thermogenics that target cardiovascular adrenergic receptors, p-synephrine's selectivity for Beta-3 receptors located in adipose tissue provides a mechanistically sound pathway for fat mobilisation with a more favourable safety profile. I have reviewed the clinical citations for each ingredient and confirm they accurately reflect published peer-reviewed findings."
CitrusBurn targets three interconnected mechanisms that most fat burners overlook entirely. Explore all five benefits →
01
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Re-Activates Beta-3 Fat-Burning Receptors
Beta-3 adrenergic receptors in adipose tissue are the specific molecular switches that signal fat cells to release stored fat for fuel. After 35, these receptors progressively downregulate — becoming less responsive regardless of stimulant dose. p-Synephrine from Seville orange peel binds directly to Beta-3 receptors, restoring their sensitivity and unlocking stored fat for oxidation. Because Beta-3 receptors are concentrated in adipose tissue rather than the heart, this mechanism avoids the cardiovascular side effects of general adrenergic stimulants like caffeine.
02
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Activates AMPK — The Metabolic Master Switch
AMPK (AMP-activated protein kinase) is an enzyme that functions as the cellular energy sensor and metabolic master switch. When AMPK is active, it signals the cell to stop storing energy as fat and start burning it. Berberine and citrus flavonoids including Naringenin are among the most potent natural AMPK activators identified in the literature. Berberine's AMPK activation is documented in human randomised controlled trials at clinically relevant doses, producing significant reductions in body weight and waist circumference independent of calorie restriction.
03
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Increases Thermogenesis and Calorie Expenditure
Green Tea Extract (EGCG), Capsaicin and the mild caffeine content of the formula work synergistically to increase thermogenesis — the process by which body heat is generated, consuming calories in the process. EGCG achieves this by inhibiting COMT (catechol-O-methyltransferase), the enzyme that breaks down norepinephrine — extending the fat-burning signal. Capsaicin from Red Pepper activates TRPV1 receptors, independently stimulating thermogenesis through the sympathetic nervous system. The combined calorie expenditure increase documented across multiple trials represents meaningful additional daily energy use that accumulates into significant fat loss over weeks and months.
How to Buy & Use CitrusBurn
How Do You Order and Take CitrusBurn?
Order exclusively from citrusburn-buy.us. Simple 1-capsule-per-day routine — no complicated stacks.
1
Order from this official website
Choose your package below. Buy from citrusburn-buy.us only — the 180-day guarantee, free bonuses and authentic product are exclusive to official orders. Third-party sellers void all protections.
2
Take 1 capsule each morning
Swallow 1 CitrusBurn capsule with a full glass of water each morning, ideally before breakfast. Morning dosing aligns with your body's natural cortisol peak and maximises Beta-3 receptor activation during the primary daily thermogenic window.
3
Use for 90–180 days consistently
The thermogenic receptor re-sensitisation and AMPK activation effects of CitrusBurn accumulate over time. Most users see their strongest results between months 2 and 6, which is why the 6-bottle 180-day package is recommended and why the guarantee covers the full period.
The Formula
What Are the Ingredients in CitrusBurn?
Seven plant-based active ingredients targeting thermogenic resistance through distinct, evidence-backed mechanisms. Read the full ingredients deep-dive →
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Seville Orange Peel Extract (p-Synephrine)
The core active compound in CitrusBurn. p-Synephrine from bitter Seville orange peel (Citrus aurantium) is a protoalkaloid that selectively binds to Beta-3 adrenergic receptors in adipose tissue — the specific receptors responsible for triggering fat cell release. Unlike ephedrine (which activates all adrenergic receptor types including cardiovascular), p-synephrine's Beta-3 selectivity provides thermogenic fat mobilisation with a more targeted mechanism. A comprehensive review of 20 human clinical studies published in the International Journal of Medical Sciences confirmed significant increases in resting metabolic rate and fat oxidation without clinically significant cardiovascular effects at study-appropriate doses.
Epigallocatechin gallate (EGCG) is green tea's primary catechin and one of the most extensively studied natural thermogenic compounds. Its fat-burning mechanism operates through COMT inhibition — COMT is the enzyme that breaks down norepinephrine after fat-cell signalling, terminating the thermogenic response. By inhibiting COMT, EGCG prolongs norepinephrine activity in adipose tissue, extending each thermogenic event. A landmark study in the American Journal of Clinical Nutrition found that EGCG combined with caffeine increased 24-hour energy expenditure by 4% — a meaningful effect that compounds over sustained daily use. Green Tea Extract also provides significant antioxidant protection against the oxidative stress that impairs metabolic enzyme function over time.
Berberine is an alkaloid derived from several plants including barberry and goldenseal, and is one of the most extensively studied natural metabolic compounds in modern pharmacology. Its primary mechanism is AMPK activation — Berberine increases AMP:ATP ratio in cells, directly activating the energy-sensing AMPK enzyme that signals the shift from fat storage to fat burning. A 2008 randomised controlled trial published in Metabolism found that berberine supplementation produced a 5% average body weight reduction over 12 weeks — comparable to some pharmaceutical interventions — along with significant improvements in fasting blood glucose and insulin sensitivity. The glucose-regulating effect is particularly relevant to CitrusBurn's thermogenic resistance model, since insulin resistance is a co-driver of metabolic slowdown after 35.
Capsaicin — the compound responsible for chilli pepper heat — produces thermogenesis through TRPV1 receptor activation in the nervous system, stimulating the sympathetic nervous system to increase heat production independently of the adrenergic receptor pathway. This complementary mechanism means Capsaicin and p-synephrine work on different receptors in parallel, producing additive thermogenic effects without receptor competition. A meta-analysis published in Appetite (2012) found capsaicin supplementation increased energy expenditure by an average of 50 kilocalories per day and significantly reduced appetite and ad libitum calorie intake — making it a meaningful contributor to CitrusBurn's multi-pathway energy deficit approach.
Korean Red Ginseng (Panax ginseng) is one of the most studied adaptogens in traditional medicine, with a particularly strong body of evidence for its effects on energy metabolism, cortisol regulation and fatigue resistance. In the context of thermogenic resistance, Korean Red Ginseng's primary contribution is cortisol modulation — chronically elevated cortisol (the primary stress hormone) drives visceral fat accumulation specifically around the abdomen by promoting fat cell differentiation in that region. By moderating the adrenal stress response, Korean Red Ginseng reduces one of the key drivers of the stubborn belly fat that characterises metabolic slowdown after 35. It also contributes to improved insulin sensitivity, which synergises with Berberine's glucose-regulating effects.
Ginger root contains gingerols and shogaols — bioactive compounds with documented anti-inflammatory, digestive and thermogenic properties. In the context of CitrusBurn, Ginger contributes in two primary ways. First, its thermogenic effect (studied through TRPV1 activation similar to Capsaicin) adds an independent calorie-expenditure pathway to the formula. Second, its anti-inflammatory and digestive support properties directly address gut inflammation, which increasingly recognised research links to impaired nutrient absorption, dysregulated appetite hormones (leptin and ghrelin) and reduced metabolic rate. A 2024 meta-analysis of 27 randomised controlled trials found ginger supplementation produced a statistically significant average weight reduction of 1.52 kg across study populations, with effects on waist circumference and body composition also significant.
Apple Cider Vinegar (ACV) derivatives provide CitrusBurn's appetite regulation and glucose stability component. The primary active compound — acetic acid — has demonstrated effects on post-meal blood glucose stabilisation by slowing gastric emptying and reducing the rate of carbohydrate digestion. This prevents the sharp blood glucose spikes and subsequent crashes that drive between-meal cravings and impair afternoon cognitive and metabolic performance. A 2018 study published in the Journal of Functional Foods found that ACV consumption alongside a high-carbohydrate meal reduced post-meal blood glucose response by 35% compared to control — a significant effect that complements Berberine's insulin-sensitising mechanism in CitrusBurn's glucose management approach.
Chromium Picolinate is a highly bioavailable form of the essential trace mineral chromium, which plays a specific role in insulin signalling and glucose metabolism. Chromium enhances insulin receptor sensitivity — improving the efficiency with which cells respond to insulin's glucose-clearing signal. This reduces the amount of insulin required to manage blood glucose, lowering the lipogenic (fat-storing) insulin signal and supporting lean body composition. The 100mcg dose in CitrusBurn is consistent with the quantities used in published clinical studies on chromium and body composition. Its inclusion completes CitrusBurn's comprehensive glucose management approach alongside Berberine and ACV derivatives.
Is CitrusBurn Safe? Side Effects and Who Should Not Take It
CitrusBurn is formulated from natural ingredients and manufactured to the highest US standards. Here is everything you need to know before buying. Read the full safety disclaimer →
✓ Generally Suitable For:
✓
Healthy adults 18 and over targeting weight management
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Adults over 35 experiencing age-related metabolic slowdown
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Those who have plateaued on conventional fat burners
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People with moderate caffeine tolerance (Green Tea provides mild caffeine)
✓
Individuals not on beta-blocker or MAO inhibitor medications
⚠ Consult Your Doctor First If:
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You have high blood pressure or cardiovascular disease — p-synephrine can affect blood pressure
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You are pregnant or nursing
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You take blood pressure medications, beta-blockers or MAO inhibitors
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You have diabetes or take blood sugar medications — Berberine and Chromium affect glucose
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You are under 18 years old
⚠ Important Safety Notice Regarding p-Synephrine
The p-synephrine from Seville orange peel in CitrusBurn is structurally distinct from ephedrine and has a more selective receptor binding profile. However, at higher doses or in sensitive individuals, it can still elevate heart rate and blood pressure. Take CitrusBurn as directed — 1 capsule daily — and do not combine with other stimulant supplements or energy drinks containing synephrine or ephedrine derivatives.
Recommended: 1 capsule with morning water before breakfast. Do not exceed 1 capsule per day.
Manufacturing Standards: FDA-registered facility · GMP-certified · Non-GMO · Soy-free · Dairy-free · Gluten-free · Third-party batch tested · Made in USA · Vegetarian capsule shell (hypromellose)
What to Expect
CitrusBurn Results Timeline — What Happens and When?
Based on the pharmacokinetics of each ingredient and 15,200+ customer reviews, here is the realistic progression most CitrusBurn users experience.
D3-7
Days 3–7: Energy and Appetite Changes
The fastest-acting compounds — Green Tea EGCG, Capsaicin and Korean Red Ginseng — begin producing effects within the first week. Most users report a steadier, cleaner energy level compared to caffeine alone, reduced mid-morning and mid-afternoon energy dips, and a noticeable reduction in between-meal cravings as ACV derivatives and Chromium begin stabilising blood glucose. The thermogenic receptor re-sensitisation process is still beginning at this stage.
W2-4
Weeks 2–4: Metabolism Shift Begins
By weeks two through four, Berberine's AMPK activation and p-synephrine's Beta-3 receptor effects are established and operating consistently. Most users begin noticing physical changes — reduced bloating, looser clothing in the waist area and improved body composition — even before the scale moves significantly. This reflects CitrusBurn's priority mechanism: mobilising stored visceral fat for energy before changes in total body weight become obvious.
M2-3
Months 2–3: Visible Fat Loss
This is the period where the majority of CitrusBurn users report their most significant weight and body composition changes. The cumulative thermogenic and metabolic effects are fully operational, fat cell release is occurring consistently through the Beta-3 pathway, and the reduced insulin/cortisol environment creates a sustained fat-burning state. Most users in this phase report 10–20 pounds of total loss. Stubborn abdominal fat — the specific target of the cortisol-reducing and Beta-3 activation mechanisms — is noticeably reduced during this phase.
M4-6
Months 4–6: Consolidation and Maintenance
Long-term CitrusBurn users report that the re-sensitised thermogenic pathways help maintain weight loss results by keeping metabolic responsiveness elevated even at reduced body weight — preventing the rebound thermogenic adaptation that causes most diet-and-supplement programmes to fail at the maintenance stage. The 6-bottle 180-day package is designed to cover this complete arc from initial receptor re-sensitisation through to sustained metabolic maintenance.
Is CitrusBurn Right for You?
Who Should Buy CitrusBurn?
CitrusBurn is designed around a specific metabolic problem. Here is who benefits most. See all five benefits →
📅
Adults Over 35
The thermogenic resistance mechanism CitrusBurn targets is specifically age-related — it begins at approximately 35 and accelerates through the 40s and 50s. If you are in this range and find fat burners that used to work no longer do, CitrusBurn's receptor re-sensitisation approach addresses the actual cause.
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Plateau Breakers
If you eat well, exercise and still cannot shift stubborn fat — particularly around the abdomen and flanks — the issue is almost certainly receptor desensitisation, not effort. CitrusBurn's Beta-3 activation mechanism specifically targets adipose tissue receptors that become unresponsive to conventional fat-burning signals.
☕
Former Stimulant Users
If you have found that higher and higher caffeine doses produce diminishing returns — or cause anxiety, sleep disruption and rebound fatigue — CitrusBurn's stimulant-light approach provides thermogenic support without nervous system overstimulation.
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Appetite and Cravings
The ACV derivatives, Chromium and Berberine in CitrusBurn address the blood glucose instability that drives between-meal cravings. If uncontrolled appetite is the primary barrier to your weight goals, CitrusBurn's glucose management component directly addresses the physiological driver.
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Low Energy and Metabolic Fatigue
Thermogenic resistance and metabolic slowdown often present as chronic low energy — the body is not efficiently converting nutrients to fuel. CitrusBurn's AMPK activation and mitochondrial support ingredients directly address cellular energy production efficiency rather than just stimulating the nervous system.
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Natural Supplement Seekers
CitrusBurn contains only disclosed botanical and trace mineral ingredients — no synthetic compounds, no proprietary blends hiding doses (within regulatory norms), no harsh stimulants. All seven active compounds have independent peer-reviewed evidence supporting their metabolic mechanisms.
Verified Customer Results
What Are CitrusBurn Customers Saying?
Over 15,200 verified reviews. Average 4.8/5 stars. Here are three verified buyer accounts.
SM
Sarah M.Verified Purchase · California, USA · January 2026
★★★★★
"I have tried every fat burner on the market and nothing worked past week two. With CitrusBurn I have lost 19 pounds over 10 weeks and still going. The biggest difference is no jitters, no crash at 3pm, and my appetite is genuinely quieter. I feel like my metabolism actually remembered how to work again."
📉 Lost 19 lbs in 10 weeks
DR
David R.Verified Purchase · Texas, USA · February 2026
★★★★★
"At 47 my metabolism had basically stopped responding to anything. Within three weeks of CitrusBurn my energy levels were noticeably different and I was not reaching for afternoon coffee. By week eight I was down 24 pounds. My doctor reduced my annual check-in frequency and commented on my blood pressure improvement."
📉 Lost 24 lbs in 8 weeks at age 47
LT
Linda T.Verified Purchase · Florida, USA · March 2026
★★★★★
"I was very sceptical about the thermogenic resistance concept but after two months I have lost 16 pounds and the belly fat is significantly reduced. I did not change my diet dramatically — I just stopped snacking at night because the cravings disappeared. The orange peel mechanism does seem to be doing something real."
📉 Lost 16 lbs · Belly fat visibly reduced
The Science
What Is the Scientific Evidence Behind CitrusBurn?
Stohs et al. (International Journal of Medical Sciences, 2012) reviewed 20 human clinical studies on Citrus aurantium extract and its primary alkaloid p-synephrine. The review confirmed significant increases in resting metabolic rate and fat oxidation across the majority of trials, with no clinically significant cardiovascular adverse events reported at study-appropriate doses. The authors noted p-synephrine's selectivity for Beta-3 adrenergic receptors as the mechanistic basis for its thermogenic profile.
Stohs et al., Int. J. Medical Sciences, 2012PubMed →
Green Tea EGCG & 24-Hour Thermogenesis
Dulloo et al. (American Journal of Clinical Nutrition, 1999) conducted a placebo-controlled crossover trial measuring 24-hour energy expenditure in healthy men. The EGCG + caffeine combination produced a 4% increase in 24-hour energy expenditure — representing approximately 80 additional calories per day — without increasing heart rate, confirming that the thermogenic effect was metabolic rather than cardiovascular in origin. This study established the clinical rationale for Green Tea EGCG as a thermogenic compound.
Dulloo et al., American Journal of Clinical Nutrition, 1999PubMed →
Berberine & Metabolic Weight Reduction
Zhang et al. (Metabolism, 2008) conducted a randomised controlled trial of Berberine versus placebo in 84 subjects with metabolic syndrome over 13 weeks. The Berberine group lost an average of 5 lbs of body weight, reduced waist circumference by 2 cm, and showed significant improvements in blood glucose, insulin sensitivity and triglyceride levels compared to placebo — establishing Berberine as one of the most evidence-supported natural metabolic compounds available.
Whiting et al. (Appetite, 2012) conducted a meta-analysis of 20 human studies on capsaicin supplementation. The analysis found an average increase in energy expenditure of approximately 50 kilocalories per day, statistically significant reductions in ad libitum food intake, and reduced appetite scores. Crucially, the thermogenic effect was independent of the adrenergic receptor pathway used by p-synephrine, confirming that the two compounds work through distinct and complementary mechanisms within CitrusBurn's formula.
For best results complete the full 90–180 day programme. The 3-bottle and 6-bottle packages include 2 free bonus e-books.
Free Bonuses
Order 3 or 6 Bottles and Receive Two Free Bonus E-Books
Included free with your 3 or 6 bottle CitrusBurn order — designed to maximise your results.
Bonus #1: The 15-Day Mediterranean Detox Method
Regular Price: $67
Today: FREE
A 15-day kitchen-based cleanse using Mediterranean ingredients to reduce inflammation, reset gut health and prime your metabolism for CitrusBurn's thermogenic effects.
Bonus #2: Mindset Reset for Sustainable Weight Loss
Regular Price: $47
Today: FREE
Daily 5-minute visualisation and craving-reset techniques designed to reduce emotional eating, lock in motivation and support the long-term behavioural consistency that makes CitrusBurn's results permanent.
180Day Money Back Guarantee
Buy CitrusBurn Completely Risk-Free
Every CitrusBurn order placed through citrusburn-buy.us is protected by a 180-day, 100% money-back guarantee — one of the longest in the entire weight loss supplement industry. If you do not experience improved energy, reduced appetite and fat loss — or if you are unsatisfied for any reason at all — contact us within 180 days of purchase for a complete refund. Even empty bottles qualify. No questions asked, no complicated process.
CitrusBurn FAQ — Everything You Need to Know Before You Buy
CitrusBurn is a natural thermogenic supplement formulated around p-synephrine from Seville orange peel — a compound that specifically targets Beta-3 adrenergic receptors in adipose tissue. Most fat burners use caffeine, which targets general adrenergic receptors including those governing heart rate. CitrusBurn's receptor selectivity means thermogenic fat-burning activation happens primarily in fat tissue, not the cardiovascular system. Combined with Berberine (AMPK activation), Green Tea EGCG (thermogenesis), Capsaicin, Korean Red Ginseng, Ginger and ACV derivatives, CitrusBurn addresses thermogenic resistance through six distinct biological pathways rather than one blunt stimulant mechanism. See the full ingredient breakdown →
CitrusBurn is sold exclusively through the official website at citrusburn-buy.us. This is the only source that guarantees authentic product, qualifies you for the 180-day money-back guarantee, and includes the free bonus e-books with 3 and 6 bottle orders. CitrusBurn is not sold on Amazon, Walmart, eBay or in retail stores. Third-party listings offer no guarantee protection and may be counterfeit, expired or improperly stored.
CitrusBurn is available in three packages: 1 bottle (30-day supply) at $79 plus shipping; 3 bottles (90-day supply) at $69 per bottle ($207 total) with free US shipping and 2 free bonus e-books; and 6 bottles (180-day supply) at $49 per bottle ($294 total) with free US shipping and 2 free bonus e-books. All packages include the 180-day money-back guarantee. The 6-bottle package is recommended as the minimum for a complete 180-day metabolic reset programme.
Most users report noticeable energy and appetite changes within 3–7 days. Visible fat loss changes typically emerge between weeks 2 and 4 as thermogenic receptor re-sensitisation establishes. The most significant body composition changes occur between months 2 and 6, consistent with the product's 180-day guarantee design. For best results, complete the full 90-180 day programme. See the full results timeline →
CitrusBurn is formulated with natural, plant-based ingredients and manufactured in an FDA-registered, GMP-certified facility in the USA. It is non-GMO, soy-free, dairy-free and gluten-free. Most users report good tolerability. The primary safety consideration is the p-synephrine from Seville orange peel — at recommended doses, clinical research has not identified significant cardiovascular adverse effects, but individuals with high blood pressure, cardiovascular disease or those taking blood pressure medications should consult their physician before use. Do not combine with other synephrine or ephedrine products. Read the full safety disclaimer →
Thermogenic resistance is the progressive decline in Beta-3 adrenergic receptor sensitivity in adipose tissue that occurs with age, particularly after 35. These receptors are the primary molecular trigger for fat cell release — when they become desensitised, fat burning stalls regardless of stimulant dose. This explains why fat burners that worked at 30 stop working at 45. CitrusBurn's p-synephrine directly re-activates Beta-3 receptors, while Berberine's AMPK activation addresses the parallel glucose metabolism component of metabolic slowdown. Together they target the actual biological mechanism rather than trying to override it with more stimulant.
Every CitrusBurn order from citrusburn-buy.us is covered by a 180-day, 100% money-back guarantee. If you are not satisfied with your results for any reason within 180 days of your purchase date, contact customer support for a complete refund. Even empty bottles are accepted. No questions asked. The 180-day window is specifically designed to cover the full metabolic reset programme period, so you can experience the complete results before deciding. View full refund terms →
