10 Best Diet Pills for Women Reviewed for 2022

(Last Updated On: September 29, 2022)


Fit girl

Did you know that in the last year 147  different diet pill supplements have entered the market?

These products – also known as fat burners – are designed to help you with your weight loss journey.

They’re designed to improve the results you’d see anyway from a healthy lifestyle built around calorie control – that is, a good diet and regular exercise.

In the booming weight-loss market it can be difficult to tell which weight loss pills work, and which are trying to cash in on your desire to lose weight.

Some products base their formula on science. They look to scientific studies and publications from health safety authorities to make sure their ingredients are effective, have proven effects and, most importantly, are safe to consume.

Others don’t do this. Instead, they rely on fad ingredients and trends to make sales, with very little thought about what their product will actually do.

Here’s the thing:

The vast majority of weight loss pills go one of two ways. Either they don’t work at all, or they include ingredients that aren’t safe for women.

On the other hand, the best supplements work as advertised and are safe. They are designed to complement a lifestyle built around calorie control and, when taken as directed, they’ll deliver results.

To find the ‘Ferrari of weight loss pills’ you need to do research. You need to understand what ingredients they contain, why they’re used, whether they work, and how all this combines to help with your weight loss journey.

If that’s what you’re looking for, then read on…

Best Diet Pills for Women: Quick List


See complete details for each product below…



Related: Best Pre-Workout Supplements for Women


The Best Diet Pills for Women

We’ve put a list together of the most popular weight loss pills for women, we’ve done the research and looked at the best ingredients in each one, profiled the company’s behind the products and reviewed what the customers have been saying.


#1 Leanbean

Best Diet Pills for Women Overall


Leanbean is the one diet pill for women we can’t get enough of. In fact, we’d go as far to say that the supplement should be the holy grail for women who want to achieve a leaner and fitter frame- Leanbean is that good!

We gladly hand the best diet supplement for women award to Leanbean. It has stood the test of time and targets areas that you want to improve. How does the idea of firmer and rounder glutes, toned legs and arms and a flat and firm stomach sound to you? Leanbean’s list of all-natural ingredients is dosed to provide exactly that.

Now, you may be wondering- what’s in Leanbean that does all this? But first, you’ll have to know how the supplement works. Glucomannan is one of the main components and it serves to reduce appetite and helps with hunger pangs and cravings. More than that, caloric intake is effectively reduced, which equals a smaller waistline.

Then there’s the matter of metabolism. In simple terms, faster metabolism equals higher fat-burning, and Leanbean has this in spades. You get a blend of thermogenics, which includes Choline to get that internal engine going and speed up the melting of fat.

Lastly, Leanbean has a unique vitamin complex to provide a welcome boost of energy and stamina. If you want to get into shape as soon as possible, you should combine Leanbean’s energy-boosting aspects with a workout designed to reduce the waistline and build lean muscle.

Overall this one has everything you want in a weight loss pill. It also comes with a money-back guarantee on the three-month purchases meaning you can return after 90 days if you are not happy. For more information, check out our complete Leanbean review.


  • The best and quickest weight loss pill for women
  • Trifecta of fat- and lean muscle-building mechanism
  • Uses an ample dose of garcinia cambogia extract
  • Has a long history of successful results and happy customers
  • Has 3 ingredients that work as appetite suppressants
  • Overall our top-rated best weight loss pill


  • You will need to exercise to make the most of Leanbean

Website: www.leanbeanofficial.com


Instant Knockout Cut

Best for Both Men and Women

Best Fat burner for women

Sometimes a supplement is so balanced and performs perfectly well in both sexes that it deserves special mention. Although the product sounds like it’s for boxers, don’t let the name fool you- Instant Knockout is an excellent thermogenic fat burner regardless if you’re a man or a woman.

We love how the bottle is shaped like a closed fist, as well as the marketing that comes with the product but at the end of the day, you can rely on Instant Knockout to deliver.

At its core, Instant Knockout is a cutting supplement that lets you achieve a six-pack, well-defined arms and legs and sculpted shoulders. When used right, the product allows you to drop several sizes or weight classes and primes you for success.

Now we get to the juicy part- the ingredients. Instant Knockout has a unique blend that caters to men and women, namely the inclusion of Green Tea Extract, Cayenne Pepper Seeds, Glucomannan and others. Combined, you experience a whole-body burn and excellent energy levels day in and day out.

The makers of Instant Knockout argue that women can gain as much as men, and fat is fat no matter the gender. They’re right in this regard, and Instant Knockout is a shining example of how it can be achieved.


  • Superb cutting supplement
  • Formulated to work on both sexes
  • Packaging and marketing are a nice touch
  • Uses a generous dose of green coffee bean extract
  • One of the fat-burning supplements for men and women


  • Only available on the manufacturer’s website

Website: www.instantknockout.com 



Best Without Caffeine

 Hourglass Diet Pill

Don’t like caffeine in your weight loss pills? We hear you. For this reason, we scoured the internet for the best fat burner supplement that has no trace of the stimulant, and Hourglass came in first on that list.

Hourglass Fit recently went with a new formula, one that’s packed with nutrients and ingredients specially formulated for the female physique and anatomy. Furthermore, there’s no proprietary blend, no additives and artificial compounds. You get crucial Glucomannan, 5-HTP, Zinc, Chromium, B vitamins, Cayenne Pepper and Bioperine in good doses for maximum results.

Aside from stopping hunger pangs and cravings dead in its tracks, Hourglass boosts your immune system and mood, while elevating energy levels the natural way (via B vitamins). There’s no caffeine in sight, which is good news for those who experience side effects when taking weight loss pills with caffeine in it.

Vegans will be delighted to know they can take Hourglass Fit without worries. The manufacturer’s website encourages those who want to lose weight to take 3 steps- exercise, diet and Hourglass to achieve their desired physique. Lastly, this weight loss pill come in a slim and convenient bottle you can take anywhere with you.


  • Zero caffeine, additives and artificial ingredients
  • Scientific blend of natural vitamins and essential minerals
  • Comes in a convenient bottle


  • Official website a bit slow
  • Doesn’t use garcinia cambogia extract

Website: hourglassfit.com



Best with Glucomannan  

Powher Fat Burner

What is it about Glucomannan and weight loss? Well, the compound has a somewhat remarkable ability to make you lose weight by making you feel full and reducing the number of calories you take every day.

Powher contains an impressive 3,000mg, or 3 grams of Glucomannan (sometimes called Konjac Fiber) which helps fill up the space in your stomach. Take it three times daily and you experience an effect where you lose your appetite during breakfast, lunch and dinner.

Glucomannan is clearly the main ingredient in Powher, but where will you get the energy in a caloric deficit diet? Thankfully, the makers of Powher thought of that and included a mix of supplemental ingredients such as Choline, Chromium, Selenium and Magnesium. There’s also caffeine in its natural form so you get a nice boost for workout purposes.

We like how Powher is designed to burn fat without overdoing it on the stimulant’s end. This means you won’t likely experience crashes and suddenly becoming weak after the effects of the weight loss pill has passed. The company also did their homework and dosed their ingredients just right.


  • Made in GMP certified and FDA registered facility
  • Superior Glucomannan content at 3 grams
  • Offers a 90-day money-back guarantee
  • One of the strongest diet pills on the market


  • Free shipping only in US and UK

Official website: powherofficial.com



Best on a Budget

Burn-XT Fat Burner

Burn XT by Jacked Factory is a small miracle in itself. For one, it costs only about half of the price of any premium weight loss pills on the market. Two, it manages to outperform the lot of them when it comes to weight loss results!

So, how did Jacked Factory manage to keep their weight loss supplement cheap and accessible to all? By relying on a time-honored method called thermogenics and common yet proven ingredients.

In each bottle of Burn XT you get Cayenne Pepper Extract, Caffeine Anhydrous, Bioperine, Green Tea Extract and Acetyl L-Carnitine. Green tea and caffeine are components that bring energy, while L-Carnitine lets you burn stored fat during exercise. Cayenne raises body temperature so fat molecules can be easily used, while BioPerine amplifies all those effects.

Capsimax is arguably the heart of Burn XT, and the good news is that it works for both men and women. Jacked Factory tops that up by having the supplement made in a GMP-certified facility and ensuring that it’s free of fillers or artificial dyes.

The manufacturers of Burn XT say that you can combine it with other weight loss supplements to get the best results. It’s also fine if you’re on a budget and want to take a few pounds off your waist. Whichever route you choose, you’ll be pleased to know that the product works and helps you shed off those unwanted pounds.


  • Excellent value for money
  • Good mix of thermogenic and fat-burning ingredients
  • Transparent label and made in the USA


  • Not for those who are sensitive to caffeine side effects



STIM-FREE by Transparent Labs

Best Stimulant-Free Weight Loss Pills

Best Stim free fat burner

Contrary to what people might say, weight loss pills can still be effective in burning fat even if they don’t have stimulants. Case in point- Transparent Labs’ Fat Burner Stim-Free will probably be the best diet supplement you’ve ever tried, and that’s without having to rely on stims to lose weight.

Transparent Labs is one of our favorite supplement manufacturers, and with good reason. They are very transparent with their label and do not compromise when it comes to dosage and ingredient quality. They also refrain from using artificial compounds and keep their products pure and free from GMOs.

All these things translate to the Fat Burner Stim-Free. It’s clean, natural and serves to control hunger pangs, enhance your metabolic processes and burn fat. There are only 6 ingredients in the bottle- 5-HTP, Forslean, Acetyl L-Carnitine, Cayenne, Rhodiola Rosea and Fucoxanthin. Dosages are exact and listed for consumer knowledge.

Stim-free also means you can take it with pre-workouts and other supplements and not have to worry about adverse effects and ingredients overlapping with each other. STIM-FREE shines in scenarios where the user doesn’t want stimulants but still wants to get maximum fat-burning capacity!


  • Absolutely zero stimulants means less chance of side effects
  • A top-notch mix of fat-busting ingredients, in clinical doses too
  • Made by Transparent Labs


  • Not as much savings on bulk orders

Website: TransparentLabs.com


Ketopower Boost

Best for the Keto Diet

Keto supplements

Before we explain the merits of KetoPower Boost, it’s important to know what keto is and how you can use it to supplement your fat loss journey.

You see, keto or ketosis is a bodily state where you burn fat for fuel instead of carbs. To achieve this, you’ll need to eat more protein and healthy fats and lower your carb intake. As time goes on your body will begin to change- as you burn fat for fuel you become leaner naturally.

Experts say that a keto diet is one of the best ways to achieve ketosis, and we agree. However, the supplement you take may not support this and can even be counter-intuitive to a point that you won’t experience fat loss at all.

Now going back to the topic, KetoPower Boost differentiates itself from the pack by offering to put your body in the optimal state of ketosis faster. The supplement utilizes ingredients such as Magnesium BHB, Sodium BHB, Calcium and Potassium to counteract the effects of low minerals as you adapt to the keto diet. Other than the BHBs, the supplement activates the body’s metabolic rate and provides much-needed energy so you can complete workouts and daily tasks with ease.

It’s worthy to note that KetoPower Boost is stim-free so you won’t experience jitters and crashes or other stimulant-related side effects. Some reviews say that the supplement helped curb their keto ‘flu’ symptoms and eased them into the diet better.


  • Works very well with a keto diet
  • Doesn’t have stimulants
  • Offers significant discounts on bulk orders


  • BHB is a proprietary blend

Website: healthygenketo.com


Related: The 15 Best Fat Burners for Women Reviewed



Best for Women over 50 

Phengold fat burner

Women in the upper age ranges who want to lose weight shouldn’t just pick any supplement and call it a day. Your body simply won’t be able to keep up with the ingredients and their concentrated dosages and may result in an adverse reaction.

Staying in optimal weight range is more crucial for older adults since a lot of health conditions are associated with a big waistline. We’ve looked at the available weight loss pills on the market and found PhenGold to be a good fit. It’s an appetite suppressant and metabolic enhancer in one package, and the dosage is age-friendly, too!

What we like about PhenGold is that it uses time-honored and proven ingredients that are natural and good for you. There’s Green Tea, Green Coffee Bean Extract Cayenne Pepper, Rhodiola SP, L-Tyrosine and L-Theanine in moderate doses. Two of them are fat burners while the rest help you get into thermogenesis and provide quick energy for explosive workouts.

PhenGold also supports the user’s health by having zero dyes or fillers, artificial ingredients, soy, lactose, GMO and more. It’s made in the USA so you’re assured that you’re getting what you paid for.

The manufacturers of PhenGold still recommend users exercise and observe a proper diet for the best results. Women over 50 will love the fact that PhenGold has a unique combination of ingredients that support healthy weight loss and none of the dangers associated with it.


  • Safe to use at any age
  • Lots of good reviews from real people
  • No GMO, fillers and artificial stuff
  • Helps burn stubborn body fat


  • Uses caffeine which may cause side effects

Website: PhenGold.com


Lean PM by Jacked Factory

Best Night Time Diet Pills 

Best Night Time diet pills

Is it possible to lose weight even while you sleep? The makers over at Jacked Factory seems to think so. Lean PM is a unique diet pill supplement that works during nighttime and doubles as an excellent sleep aid as well.

The secret to Lean PM’s fat-burning mechanism is a science-based synergistic formula that promotes better mood, relaxation and of course, torching unwanted pounds. If you’re curious as to what blend of ingredients does this, look no further. Every bottle of Lean PM includes Vitamin B6, Melatonin, L-Theanine, Green Tea Extract, Magnesium and BioPerine. At the heart of the diet pill is epigallocatechin gallate, an antioxidant that urges your body to burn fat for fuel.

The rest works to enhance your mood and provide restful sleep. For those who have trouble sleeping at night, you have nothing to worry about since it’s 100% stimulant-free. Lean PM can be combined with daytime fat burners too for a 24/7 effect. When you’re ready, take the recommended dosage 30 minutes before sleeping and you’ll wake up slimmer and fitter than ever.

Lean PM doesn’t contain any artificial ingredients. Furthermore, its label is transparent and the components are highly bioavailable, which means your body will absorb it and utilize them to their maximum potential.


  • One-two punch of thermogenic fat burner and sleep aid
  • Less expensive
  • No more night-time binges and cravings
  • No stimulants means less side effects


  • Not as powerful a weight loss pill as the others
  • Not as good at reducing stubborn body fat

Website: JackedFactory.com



Best Diet Pills for Women’s Weight Loss at Walmart

Alli Weight Loss Supplement

Website: Walmart.com

Do you often find yourself wanting to lose weight while shopping at Walmart? It’s a very specific example, isn’t it? However, it can happen, and you’ll be faced with an array of cheap diet pill choices you can try.

Our first recommendation to those who will be looking to get a weight loss pill in a Walmart store is to not get them there. Yes, we know how you might get intimidated with choosing the best weight loss supplements on the internet, but then almost every fat-burning supplement is better than the ones in a retail store. If you’re really dead set on picking one up, then we can’t stop you. However, you should know that you should only take them temporarily until you can buy a better one (why not check our list and pick one?)

Alli is a cheap, over-the-counter weight loss pill that can suffice. It’s FDA-approved and doctor recommended, so they’re pretty much okay. The product’s main ingredient is Orlistat, a compound that stops fat from being absorbed in the food you eat. While it does address future caloric consumption it won’t target the ones you already have. So yes, you’ll still have to exercise and follow a healthy diet to slim down and achieve your target physique.


  • Available at Walmart
  • Cheap


  • Orlistat is the main ingredient
  • Can produce GI-related side effects
  • Not really worth your time and effort


How Do the Best Weight Loss Supplements for Women Work?

Trim waist line

Ending the frustration of stubborn fat is hard.

Most likely your lifestyle changes are not working fast enough, and you need to push your results into higher gear.

That said, you might be thinking:

‘I don’t want to overdose on caffeine and harm my body just to lose weight’.

This is where the best weight loss pills for women come to the rescue, they include the best ingredients to shift fat safely.

These top ingredients help to:


#1 Reduce Your Appetite

Ever wondered why when you’re out for dinner it’s always the girls at the table that are craving dessert?

It’s not that men are some supreme beings when it comes to willpower it’s just that they got the luck of the draw when it comes to genetics. Studies of the female brain show that women feel cravings much more intensely.

How can a weight loss pill help lower your appetite?

The best weight loss pills are there to make dieting easier. That’s the point. They suppress your appetite by including fiber, this gives you the sensation of feeling fuller so you can avoid going off rails with your latest health-kick.


#2 A Quicker Metabolism

One of the big downside with caffeine is that it can actually make you feel sick and leave you with less energy than when you started.

The good news is:

The best weight loss pills for women factor this in. The makers worked out that they can get the same if not better results by including natural spices and not synthetic stimulants.

Weight loss pills that include these potent fat burners raise your metabolic rate so you can burn more calories and lose weight.

That’s not all:


 #3 Boost Energy Levels

If your diet is making you feel sluggish in the gym then the chances are your progress could hit a wall. Taking one of the best weight loss pills comes with the added benefit of boosting your energy levels.

Choose the right one and you shouldn’t feel any side effects from sticking to a low-calorie diet.

In fact, you’ll be able to make your workouts more intense and still eat fewer carbs.


The Ingredients Inside the Best Weight Loss Pills for Women?

The best weight loss pills for women contain the most up-to-date ingredients for boosting weight loss.

We’ve compiled a list of some of the most proven fat-burning ingredients here. It’s worth noting that despite tons of ingredients making their way into fat burner formulas, only a handful have actually been recognized as effective for weight loss. Where this is the case, we’ve made a note.

Glucomannan – AKA konjac root


This soluble fiber is a wonder-ingredient that features in tons of weight loss supplements thanks to its appetite suppression properties. It expands inside your stomach, making you feel more quickly than you would otherwise.

This weight loss effect has been backed up by scientific studies, and health safety authorities note that 3g per day is most effective for weight loss.

This ingredient is easily one of the best appetite suppressants you can get over the counter.


Raspberry Ketones

Raspberry Ketones actually put the ‘diet’ in ‘diet pill’ by lowering your appetite and forcing you to eat fewer calories. 2

Studies have also revealed that this ‘fragrant’ compound slows the accumulation of fat thanks to the active ingredient Capsaicin.


Garcinia Cambogi Extract

One of the biggest appetite suppressants in Hollywood, Garcinia Cambogia Extract stops weight gain by blocking the enzyme linked to the production of fatty acids.

It also suppresses your appetite by releasing serotonin, this works by telling your body to feel full and eat less.

A trial of 60 people saw significant weight loss results amongst the control group by the end of an 8-week study. 3



A common ingredient in fat-burning supplements, this spice can send your weight loss goals to ‘light speed’ by directly reducing fat tissue.

Turmeric is a thermogenic that has caffeine-like results on your metabolism without causing side effects.

It also prevents ‘weight regain and stops ‘yo-yo dieting’, so once you successfully burn fat there’s less chance of it rearing its ugly head again. 4


Cayenne pepper

Cayenne Pepper is the potent chili that lights the fire within the best weight loss pills. This ‘capsinoid’ raises body temperature and increases energy used by the body – this results in fewer calories being stored and increase weight loss. 5

What’s more, a double-blind study showed reduced body weight amongst volunteers within a 2-4 week period.


Green Tea

Green Tea is a top fat burner that will help you load up on antioxidants, get rid of love-handles and cut cellulite down to size.

The success comes down to the active weight loss ingredient ‘Catechins’, these ‘polyphenols’ have been shown to increase energy, boost metabolism and weight loss – with or without the need for caffeine. 6



This nutrient helps your body maintain normal fat metabolism –  the process by which fats are stored, transported, and used in your body.

With a boosted metabolism, you’re better able to break down fat for energy, leading to increased weight loss . 7

It’s also associated with lower cholesterol levels, important for your overall health.


Vitamin B

Vitamin B actually refers to 8 separate vitamins – B1, 2, 3, 5, 6, 7, 9, and 12 (we don’t know either).

Most supplements contain B6 and B12, both of which are linked to a suite of positive effects. We’re talking about boosting energy-yielding metabolism, contributing to nervous system function, and reducing tiredness and fatigue. 8

In short, it’ll help to power up your workout and keep you energized.



Chromium is a mineral involved in macronutrient metabolism. Ensuring you have enough means that your body will be better equipped to transport and store all macronutrients – not just fat. 9

It helps to regulate blood glucose levels as well. Elevated blood glucose is linked with all sorts of problems, so this regulation is a nice add-on effect to its weight loss credentials.


Side Effects With Weight Loss Supplements

With these weight loss pills there are side effects to look for. These side effects are mostly from the stimulants that some of these supplements contain.

For example, caffeine is a very common ingredient in many supplements for weight loss. Some do have rather large doses of caffeine even and that can cause jitters, anxiety, headaches, and sleeplessness.

Another ingredient that could cause side effects is bitter orange, also known as synephrine. This ingredient can cause high blood pressure and increased heart rate.  When it is used with caffeine the side effects are even worse. It is even banned by the NCAA.

You should also look for an ingredient called Yohimbe which can also cause side effects. Yohimbe has a lot of different uses including dry mouth, low blood pressure, increased sexual function and weight loss. Side effects for Yohimbe include rapid heartbeat, kidney failure, seizure and heart attack. If you are going to use Yohimbe make sure it is in small doses.

The easiest way to avoid side effects is to look for stim-free weight loss supplements. They help you lose body weight without unwanted side effects.


Do Diet Pills Work?

Zoe Daly abs

So do diet pills actually do anything?

Well, obesity is becoming a big problem ….

So it’s inevitable that better and better products will keep popping up!

But remember the best weight loss pills can’t just flush out fat in the blink of an eye.

That’s just not realistic.

So don’t choose a weight loss supplement if you don’t have the motivation workout and put some effort in yourself.

Why use one then?

Well, using the best weight loss supplements is a bit like making sure your car has the very best gas in the tank. The point is to power up your body’s natural fat-burning so you lose pounds quicker.

These supplements can:

  • Renew weight loss – break the stalemate with your body and start losing weight
  • Help improve your figure – remove soft areas of fat uncovering your abs
  • Make healthy eating easier – stop sugar cravings head-on

Fat burners can make great alternatives to prescription weight loss medication like Phentermine. If you’re looking for the best phentermine alternative, one of the supplements in the list above may be a good start.


Related: Best Weight Loss Pills For Men


Why Over The Counter is Better than Prescription Weight Loss Pills

When it comes to weight loss pills, there are two main types: over-the-counter (OTC) and prescription weight loss drugs.

Prescription weight loss pills are only available from your doctor after deciding that they’re appropriate for you. OTC weight loss pills can be bought from supplement stores or online without a prescription.

There are pros and cons to both types of pills, but on the whole, OTC weight loss pills are better. Here’s why:

They’re more accessible – You don’t need a prescription to buy OTC weight loss pills. This makes them much easier to get hold of, and you can start using them straight away.

They’re often cheaper – Prescription diet pills are only available on a private prescription, which can be expensive. OTC weight loss pills are generally much cheaper, so you could save money in the long run by switching to an OTC pill.

Fewer side effects: Because OTC weight loss supplements are generally less potent than prescription weight loss pills, they tend to have fewer side effects. This is excellent news if you’re worried about the potential side effects of diet pills.


Best For Before and After Pregnancy

To get pregnant quicker you’ll need to burn fat and get in shape, the best weight loss pills can help make this happen. Equally, taking a fat burner to get your body back after pregnancy can be really effective.


If you’re actually pregnant or breastfeeding it’s not usually recommended to take weight loss pills.

Many weight loss supplements use stimulants so you’ll want to make sure you do your research properly or check with your doctor before purchasing a weight loss pill that’s safe to use.


So what is the best diet pill to burn belly fat and make cellulite disappear?

Well, hopefully, this list goes some way to providing the answers to those important questions on your weight loss journey.

We’ve chosen Leanbean as the best diet pill for women. It uses the safest weight loss ingredients that actually work.

Don’t forget:

The best weight loss pills are the ones that support your training and help you convert your fitness efforts into amazing weight loss transformations.

While you’ll need to exercise and eat clean, using a weight loss pill to boost your metabolism and curb cravings will help you break the plateau to get your beach body quicker.


2 https://www.ncbi.nlm.nih.gov/pubmed/29164883

3 https://www.ncbi.nlm.nih.gov/pubmed/18084863

4 https://www.ncbi.nlm.nih.gov/pubmed/28839007

5 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5426284/

6 https://onlinelibrary.wiley.com/doi/10.1038/oby.2009.256

7 https://www.ncbi.nlm.nih.gov/pubmed/22483274?dopt=Abstract

8 https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2010.1759

9 https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2010.1732