Natural fat burners can make weight loss bearable. However, there are an endless number of options on the market, making it almost impossible to find the right one.
In this article, we’ve helped you turn down the noise by picking 12 of the best fat burners 2025 offers that can help you achieve your weight loss goals when added to the right fitness routine.
You will find our favorite supplement, PhenQ, along with other similar products, including their benefits, dosage, costs, and user reviews.
We also cover how these pills generally work, the science behind their key ingredients, potential side effects, and how to find the best one to support you.
Best Fat Burners in 2025
PhenQ - Best fat burner overall
Capsiplex BURN - Ideal for boosting metabolism
Hunter Burn - Most high-dose fat burner
PrimeShred - Good for cutting stubborn fat
PrimeGENIX CalmLean - Great stimulant-free fat burner
KetoCharge - Good for ketosis
Instant Knockout Cut - Ideal for active people
PhenGold - Great for rapid weight loss
Trimtone - Best fat burner for women
SculptNation Burn Evolved - Best herbal fat burner
SculptNation Burn PM - Best for fat loss and improved sleep
SculptNation Turmeric Black - Best for exercise recovery
1. PhenQ - Best Fat Burner Overall
Pros
- Shared by several clinicians on FrontrowMD
- Try risk-free for 60 days
- Subscribe and get 15% off
- Huge multi-buy savings
Cons
- It might cause stomach discomfort or jitters
Overview
If you’re wondering why PhenQ is our top choice among the best fat burners, that’s because it targets five aspects of weight loss. As a holistic supplement, it includes nutrients and herbs that could help stimulate thermogenesis, while boosting energy, improving cognitive function, and reducing your appetite.
How To Use It
- 1 capsule with breakfast and another with lunch every day
- Avoid taking PhenQ after 3 pm due to stimulants, which can disrupt sleep
Price Range
- 1 month: $69.99
- 3 months: $139.99
- 5 months: $209.99
What Customers Think
PhenQ has balanced feedback on Trustpilot, with one customer giving it five stars and saying it needs to be combined with a low-calorie diet or a suitable diet plan and exercise for effective results. They also experienced more energy and reduced craving. On a less positive note, Marie complained about not getting a reply to her refund request as the supplement didn’t work for her [1] [2].
>>Get PhenQ here
2. Capsiplex BURN - Ideal for Boosting Metabolism
Pros
- 60-day money-back guarantee
- Includes essential vitamins
- Vegan friendly
- Free of gluten, soy, and dairy
Cons
- No subscribe and save option
Overview
If you’re looking for the best fat burners to speed up your metabolism, Capsiplex BURN is the perfect pick. It is formulated with natural ingredients, including capsaicinoids, which may elevate thermogenesis and promote fat loss.
How To Use It
- 3 capsules half an hour before working out, first thing in the morning
- Take the same dosage 30 minutes before breakfast on rest days
Price Range
- 1 month: $64.99
- 3 months: $129.99
- 5 months: $194.99
What Customers Think
You might need to check subreddits like r/Supplements, r/vitaminsNsupplements or r/askfitness for balanced and comprehensive Capsiplex BURN reviews.
>>Learn more about Capsiplex BURN
3. Hunter Burn - Most High Dosage Fat Burner
Pros
- High doses of natural ingredients for potentially effective results
- Gluten-free and soy-free formula
- Low stimulant formula
- Free exercise and diet guides with bulk orders
Cons
Overview
Compared to some of the best fat burners on the market, Hunter Burn is formulated with high doses of natural ingredients. This makes it a potentially effective option for those who want to slim down fast. Plus, it has a low-stimulant formula and contains no added caffeine.
How To Use It
- 2 capsules three times daily with your meal and a full glass of water
Price Range
- 1 month: $90
- 3 months: $180
- 4 months: $270
What Customers Think
In his Trustpilot review, Robert paired Hunter Burn with another fat burner from the same manufacturer, and his reaction was “great results and friendly customer service." But Alexander complained about unreliable customer support, even though the supplement did wonders for them [3] [4].
>>Check if Hunter Burn is right for you
4. PrimeShred - Good for Cutting Stubborn Fat
Pros
- 100-day refund policy
- It fits the vegan and vegetarian lifestyle
- Subscribe and save up to 40%
- Free shipping on all orders
Cons
- Some may find the dosage inconvenient
Overview
PrimeShred gains a spot in our list of the best fat burners because it offers a specific blend of herbs and nutrients that work together to support your weight loss efforts. With PrimeShred, you can expect boosts in energy, mood, and mental performance, making it easier to complete your workout routine.
How To Use It
- 3 capsules daily, about 20 minutes before breakfast
Price Range
- 1 month: $59.99 or $47.99 when you subscribe
What Customers Think
While Kevin admitted shipping was horrendous in his Trustpilot review, he praised the friendly customer service and how the supplement helped manage his energy, focus appetite all day. On the flip side, Hugo experienced jitters with the supplement and questioned the refund policy [5] [6].
>>Explore the benefits of PrimeShred
Pros
- Contains no stimulants
- Simple formulation and dosage
- 67-day refund policy
- Pay for bulk orders in installments
Cons
- Not as potent as some weight loss supplements
Overview
PrimeGENIX CalmLean is a gentler alternative to other best fat burners because it doesn’t include any stimulants. Although the formula is free from caffeine, it promotes thermogenesis to burn fat and use it as a source of energy. CalmLean may also assist you in controlling your appetite by minimizing hunger pangs.
How To Use It
Price Range
- 1 month: $59
- 3 months: $169
- 6 months: $319
What Customers Think
The stimulant-free feature was one thing a particular reviewer on Amazon pointed out that they really liked. That and the supplement’s subtle energy boosting benefits. Another reviewer who went by Fred simply said, “The product works.” Meanwhile, one user said they didn’t notice any difference other than feeling hungrier than usual [7] [8] [9].
>>Buy CalmLean directly from PrimeGENIX
6. KetoCharge - Good for Ketosis
Pros
- May help manage keto flu
- Bigger savings on bulk orders
- 60-day money back guarantee
- Suitable for those on a keto diet
Cons
Overview
KetoCharge makes it easier for you to enter, as well as maintain, a state of ketosis, when your body burns fat to create energy. As one of the best fat burners for keto dieters, the supplement gives you the chance to eliminate more fat, while also energizing you, even if the diet limits the way you eat.
How To Use It
- 2 capsules immediately after you get out of bed
Price Range
- 1 month: $59.99
- 3 months: $119.99
- 5 months: $179.99
What Customers Think
According to her 5-star review on Trustpilot, KetoCharge has helped Elizabeth Walker’s keto diet journey by aiding digestion and boosting her vitality. Aaryan also experienced the same benefits: “steady energy all day”. But Barn Reeds never received his bulk order of KetoCharge [10] [11] [12].
>>Check out KetoCharge benefits here
Pros
- Secure checkout and discreet shipping
- Vegetarian and vegan friendly
- Subscribe and receive 10% off the regular price
- Manufactured in FDA and cGMP-approved facilities
Cons
- Limited 30-day return policy
Overview
If you’re an active person, Instant Knockout Cut could be the perfect companion on your fitness journey. It claims to offer three key weight loss benefits through its comprehensive formula: boost metabolism, reduce cravings, and fuel energy levels. This makes Instant Knockout Cut one of the best fat burners for men and women, in short, for most people.
How To Use It
- 1 capsule four times a day (as soon as you wake up, between breakfast and lunch meals, after lunch, and before dinner)
- It contains stimulants, so take the last dose at least 5 hours before bed
Price Range
- 1 month: $65
- 2 months: $130
- 4 months: $195
What Customers Think
While Wendy said the supplement didn’t do anything for her and complained about the price, Justice Carter said it was awesome. Another user also added that they lost 5 pounds in 2 weeks [13] [14] [15].
>>Read more on Instant Knockout Cut
8. PhenGold - Great for Rapid Weight Loss
Pros
- Soy, gluten, and dairy free
- It’s compatible with a vegan or vegetarian diet
- Money-back guarantee, good for 100 days
- Subscribe and save 20%
Cons
- Guarantee only applies to purchases of over one
Overview
Like PhenQ, PhenGold offers a formulation that can help reduce your weight in several ways for fast, effective results. It also includes a few ingredients (like caffeine and L-theanine) that can boost your energy and focus for more productive workout sessions.
How To Use It
- 3 pills around 20 minutes before breakfast
Price Range
- 1 month: $59.99 or $47.99 when you subscribe
What Customers Think
To find balanced reviews for PhenGold, we recommend checking online forums like Quora or Reddit.
>>Buy PhenGold here
9. Trimtone - Best Fat Burner for Women
Pros
- Made for women
- You only need to take it once a day
- 100-day refund policy
- Free shipping on all orders
Cons
- Not suitable for vegans or vegetarians
Overview
For women seeking a simple path to fat loss, Trimtone could be a convenient, go-to solution. It offers natural ingredients that are proven to increase metabolism and energy levels, and suppress appetite.
Trimtone is among the best fat burners for women with busy schedules since they’re only required to take a single pill each day.
How To Use It
- 1 capsule daily before breakfast
Price Range
- 1 month: $39.99 or $31.99 when you subscribe
What Customers Think
Someone on Reddit said Trimtone is among the best diet pills out there, as it helped them reduce cravings and keep track of their weight management goals. Another chimed in that Trimtone is not worth the price and that it is “basically if you had a half cup of coffee mixed with a cup of green tea” [16] [17].
>>Subscribe and get the best price for Trimtone
Pros
- All ingredients are standardized for extended benefits
- Lifetime guarantee
- Suitable for vegetarians
- Simple dosage
Cons
- Customers are only allowed 2 returns per year
Overview
Manufactured by VShred, SculptNation Burn Evolved uses only standardized herbal extracts. This means you get a consistent, effective dose of the active compounds in every capsule, leading to more reliable results. Plus, it is suitable for those on a vegan or vegetarian diet and pairs well with VShred workout programs.
How To Use It
Price Range
- 1 month: $49
- 3 months: $132
- 6 months: $195
What Customers Think
On Amazon, Nancy experienced an energy boost after a few days on Burn Evolved. She also said it is the perfect companion for tough workouts. However, Kirstyn reported an allergic reaction after taking the supplement for a week [18] [19].
>>Try SculptNation Burn Evolved risk-free
11. SculptNation Burn PM - Best for Fat Loss and Improved Sleep
Pros
- Gluten free
- Promotes restful sleep
- Autorefil option with one bottle order
- Bulk orders let you save up to 51%
Cons
- Not suitable for vegans or vegetarians
Overview
SculptNation Burn PM is designed for those who struggle with weight issues tied to poor sleep. It uses key ingredients to help you fall into a deep, restful sleep more easily, while also including extracts that stimulate your body’s resting metabolic rate.
How To Use It
Price Range
- 1 month: $49
- 3 months: $132
- 6 months: $195
What Customers Think
One customer on Amazon said the product does what it claims. Marc said he didn’t notice any benefits except side effects like heartburn. One customer also added that it helped them sleep better, but they didn’t notice any weight loss benefits [20] [21] [22].
>>Get Burn PM directly from SculptNation
Pros
- Easy to take as part of a daily routine
- Formulated for exercise recovery and joint pain
- Massive savings with bulk orders
- Try risk-free and return anytime
Cons
- Not a comprehensive weight loss formula
Overview
SculptNation Turmeric Black is a herbal fat burner for athletes or those with joint pain. Its turmeric base is known to have anti-inflammatory properties, which can help with muscle soreness after workouts.
While turmeric isn't a direct fat-burning ingredient, it can support overall health and well-being during a weight loss journey, helping you feel your best.
How To Use It
Price Range
- 1 month: $49
- 3 months: $132
- 6 months: $195
What Customers Think
SculptNation Turmeric Black has an excellent average rating on Trustpilot. Happy customers, like Judy, said it helped with inflammation. Pappy Bob added that it’s easy to take, but complained about the price. Kevin thinks it works for inflammation, but didn't do anything for weight loss [23] [24] [25].
>>Discover the fat-burning benefits of Turmeric Black
Common Ingredients of the Best Fat Burners
These 7 are the most frequently present ingredients in the fat burner products:
Caffeine
As a popular ingredient in the best bodybuilding supplements, caffeine boosts your metabolism so that your body can get rid of fat. It speeds up your body’s metabolic rate, which means you can burn more calories even when you’re not exercising. It can also help you perform better at workouts, particularly by raising your adrenaline levels [26].
Green Tea Extract
Green tea extract is rich in antioxidants, particularly catechins. By making your body use more energy and increasing fat oxidation, these antioxidants can stimulate your body to burn fat, which could lower your body weight [22].
L-Carnitine
This amino acid plays a role in your fat metabolism, moving the fatty acids toward the mitochondria, where they will be burned to produce energy. As a result, your body can use stored fat as fuel [28].
Glucomannan
A kind of dietary fiber, it comes from the root of the konjac plant. When you consume it, it absorbs water and expands in your stomach, making you feel full, so you can eat less [29].
Conjugated Linoleic Acid
As a type of polyunsaturated fatty acid, you can usually find CLA in meat and dairy products. It could help you reduce body fat by increasing your body’s metabolism, as well as breaking down fat faster [30].
Cayenne Pepper Extract
Capsaicin comes from cayenne pepper extract, which may improve your metabolism and promote fat oxidation, while helping you control your appetite. However, if you take too much, you might experience gastrointestinal irritation [31].
Green Coffee Bean Extract
Since green coffee bean extract is high in chlorogenic acid, it can help your body absorb less glucose, meaning you will experience lower insulin spikes and lose more fat. However, it may cause mild side effects, as it contains a little natural caffeine [32].
>>Explore PhenQ benefits here
How to Safely Use a Fat Burner
- Consult a healthcare professional before taking any supplements
- Check the ingredients to make sure you’re not allergic to any of them
- Follow the dosage instructions on the packaging
- Begin with the lowest recommended dose to see how your body reacts, before gradually increasing it
- Some best fat burners, especially those containing caffeine or other stimulants, should be taken earlier in the day to avoid affecting your sleep
- Drink plenty of water throughout the day avoid the dehydrating effects of some supplements
- Combine supplement use with a balanced diet and regular physical activity
- Monitor your body to see how it responds to the supplement
- If you experience any severe side effects, stop taking the product and ask for help from a healthcare expert
- If your fat burner contains stimulants like caffeine, avoid taking stimulants from other sources to prevent potential overstimulation
Potential Side Effects
The best fat burners are generally considered well-tolerated, but some ingredients may potentially cause certain side effects in some users. For example:
- If you’re easily affected by caffeine, you might have trouble sleeping or feel jittery and restless. As a stimulant, it could speed up your heart rate, as well as cause digestive problems.
- Additionally, if you take L-carnitine, you might vomit or feel nauseous, while it may cause heartburn and diarrhea, too.
- As for conjugated linoleic acid, or CLA for short, it might make you feel tired, plus it can lead to liver problems.
- Finally, you should be aware that cayenne pepper extract could irritate your stomach.
Who Should Avoid Fat Burners?
If you are pregnant or nursing, you might want to speak with a healthcare professional before taking any of the best fat burners. Since most fat burners are designed for adults, we don’t recommend them for kids, teenagers, or older adults either.
These supplements may not be safe for you if you have a heart condition, gut health issues, high blood pressure, as well as liver or kidney disorders.
If you are taking prescription medications for conditions like high blood pressure or blood sugar issues, natural supplements could potentially interact with them. You should also avoid them if you are preparing for surgery.
Moreover, it’s not a good idea to take fat burners in case you have a history of mental health conditions or eating disorders. Last but not least, before taking any supplements, check first if you’re allergic to any ingredients in the product.
>>Get PhenQ here
What To Look for When Choosing the Best Fat Burner for You
When you're trying to figure out which fat burner is right for you, it's crucial to focus on a few key factors that go beyond just a product's claims. Your personal needs and goals should always be the top priority.
- Tolerance for Stimulants: For those who have no issues with caffeine, a comprehensive formula like PhenQ or Capsiplex Burn might be a great fit. These products often cover all bases with a single, straightforward dosage. However, if you're sensitive to stimulants, you'll need to look for stimulant-free alternatives.
- Diet and Lifestyle: If you're following a keto diet, a product like KetoCharge is formulated to work with your body's specific metabolic state. On the other hand, a product like CalmLean might be a better all-around, stimulant-free option, though it may not be as potent as some of the multi-ingredient formulas.
- Ingredients and Potency: You should also pay close attention to the ingredients. Some products have a wide range of clinically backed fat-burning ingredients, while others may have fewer. The number and type of ingredients often determine a supplement's potency and how it works—whether it's mainly for appetite control, metabolism boosting, or both.
- Price and Value: Finally, consider the price and what you're getting for your money. Our guide breaks down the cost per month, making it easier for you to compare and see which supplement is the most affordable option for your budget. Always look for a balance between price, ingredient quality, and the specific benefits you're seeking.
Frequently Asked Questions About the Best Fat Burners
We give straightforward answers to popular questions people ask about the best thermogenic fat burners.
Do Thermogenic Fat Burners Work?
Yes, thermogenic fat burners, like PhenQ, can improve your metabolism and raise your body temperature, helping your body burn more fat and calories. After all, most of their ingredients are backed by studies.
Which Supplement Is Best To Lose Fat?
The best natural option we reviewed is PhenQ, and it targets different aspects of healthy weight loss like appetite control, boosting metabolism and thermogenesis, and improving energy levels. Capsiplex Burn, Hunter Burn, and PrimeShred are also top options on our list.
Are There Any Fat Burners Without Stimulants?
Yes. If you prefer to take the best fat burners that are free from stimulants, you can try PrimeGENIX CalmLean. Alternatively, you can give KetoCharge a shot.
When Should I Consider Prescription Weight Loss Pills?
If your body mass index (BMI) is 30 or higher, it might be practical for you to consider prescription weight loss pills. The same is true if your BMI is 27 or above, which suggests you might have a condition caused by obesity. Remember, you should only take a weight loss medication if a health care provider gives you a prescription.
Conclusion: Best Fat Burners
Maybe you read our review of the best fat burners because you’re serious about losing weight. In this case, we suggest that you try supplements, such as PhenQ, which can help you lose fat.
While we recommended our favorites, you should pick the fat burner that fits your needs, so you can get a better shot at reaching your ideal weight. And don’t forget to reach out to a healthcare professional before adding any supplement to your routine.
>>Buy PhenQ here
References
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