The 4 Week Fat Blast eBook
The 4 Week Fat Blast eBook
178-pages of all you need to know for achieving your weight loss goals.


(32 customer reviews)

£39.00£117.00 with FREE UK Delivery and eBook

Made using natural ingredients, Phentaslim has been formulated to provide you with a complete, nutrient-based profile to target stored body fat, fire up your metabolism, and boost your energy.


This will also add the following products to your cart:

  • 4 Week Fat Blast Gift
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Join The Thousands Winning with Phentaslim

We get it – losing weight is tough.

Just thinking about tackling those excess pounds is enough to make us want to give up before we start.

Made using all-natural ingredients, Phentaslim is an active, fat-burning, metabolism booster.

It has been formulated to provide you with a complete, nutrient-based profile to target stored body fat, fire up your metabolism, and boost your energy.

Fire up your metabolism and melt that fat away

Phentaslim combines powerful ingredients into one capsule to target your weight loss in four ways:

Advanced thermogenesis to boost your metabolism, melt away excess fat to reveal the real you.

Avoid the fatigue of dieting with an energy boost to power you through the day.

Fight additional weight gain and fat storage by burning through those excess calories.

Packed with vitamins, minerals, and powerful antioxidants, to help boost your immunity and health.


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Phentaslim combats common weight loss problems

Woman using exercise machine


Phentaslim’s energy-boosting profile helps you avoid those low-energy slumps associated with dieting.

Yoga mat and shoes


Along with providing more energy, Phentaslim’s advanced mood-boosters will work to keep you motivated, ready to burn those excess calories.

Healthy eating


Phentaslim can help you skip past those between-meal cravings – and to switch out those sugary carbs for filling proteins.

The Three Steps to Losing Weight with Phentaslim

Woman exercising

You’re Ready

You’ve had enough of putting in the hard work with no results.

The basic facts are that eating too much food means taking in too many calories, and this results in stored fat. To get rid of this stored fat you need to eat less and create a calorie deficit.

Alone, it’s a slow and difficult process – it’s no wonder many people simply give up after a week.

What you need to do is boost your metabolism.

Phentaslim speeds up your metabolism to deliver faster, visible results.

Friends laughing

Burn Fat for Energy

Body fat is energy, stored up to be used at a later time, and is caused by a diet too high in calories.

For weight loss, first, you need to use up the calories you’ve consumed.

Phentaslim is formulated to assist with this.

Then you need to create and maintain a calorie deficit. Once achieved, this will encourage your body to use up its fat stores.

To manage this effectively you’ll need more energy.

Phentaslim delivers a sustained energy boost to drive you day and night.

Man exercising in park

Lasting Changes

Phentaslim is for real, lasting weight loss.

By boosting your metabolism you’ll be turning your body into a fat-fighting machine.

Better still, you can use Phentaslim alongside an existing weight loss plan.

As you progress, you’ll find it so much easier to eliminate those bad habits that have been holding you back.

Made For You

We’ve carefully considered your needs when crafting Phentaslim.We’ve made it as simple to use as is possible.

To make it part of your daily routine, just take the easy-to-swallow capsule, three times a day with water. That’s it. No blending odd tasting shakes, no drinking weird flavoured teas.

Our products are made in inspected and certified facilities. We also believe you should know what a product contains – we don’t hide behind any ‘proprietary blend’ nonsense. You can read about the ingredients here.

Phentaslim will reveal a better you.


How To Use Phentaslim

Directions: Take ONE capsule shortly before breakfast, ONE capsule shortly before lunch, and ONE capsule shortly before dinner. Take each capsule with a full glass of water.

Advice: Do not exceed the recommended daily dose. Persons sensitive to caffeine should begin with just ONE capsule per day to assess their tolerance, and are advised not to take this product after 5pm. This product is suitable for vegetarians and vegans. For use only by persons over the age of 18.

Ingredients: Capsule Shell (HPMC), Caffeine Anhydrous, L-Theanine, N-Acetyl L-Carnitine, L-Tyrosine, Magnesium Oxide 60% DC, Guarana Extract 4:1, Magnesium Stearate, Brown Rice Flour, Korean Panax Ginseng 40:1 (80% Ginsenocides), Green Tea Extract 15:1 (95% Polyphenols), Nicotinamide (Niacin), Zinc Oxide, Cayenne Powder (Capsicum Frutescens) 8:1 Extract 0.5%, Silicon Dioxide (Sipernat 22s), Ginkgo Leaf Extract 50:1, Pyridoxine HCL 82%, Thiamine HCL 89%, Riboflavin, Black Pepper Extract (Piper Nigrum) 95% Piperine, Cyanocobalamin.

Warning: This product contains caffeine and is not suitable for children or pregnant or breastfeeding women.

Phentaslim Nutritional Information

Daily Serving Size: 3 Capsules
Daily Servings Per Bottle: 30

Amount Per Serving % NRV
Korean Panax Ginseng (40:1) 1,200mg
Guarana Extract (4:1) 400mg
Green Tea (15:1) 375mg
Caffeine Anhydrous 270mg
L-Theanine 225mg
N-Acetyl L-Carnitine 200mg
L-Tyrosine 200mg
Ginkgo Leaf Extract 120mg
Magnesium 80mg 21%
Cayenne Powder (8:1) 50mg
Black Pepper 24mg
Niacin (Vitamin B3) 20mg 125%
Zinc 15mg 150%
Vitamin B6 1.8mg 129%
Riboflavin (Vitamin B2) 1.3mg 93%
Thiamine (Vitamin B1) 1.3mg 118%
Vitamin B12 10mcg 400%

woman in big jeans

It’s Agreed: Phentaslim is A Winning Choice

With so many choices available, why should you choose Phentaslim?

Thousands of happy customers, thousands of success stories.

We set out to create a scientifically supported diet supplement for our customers that’s natural, effective, and safe to use.

You expect the best product. Everything we manufacture is made in a Grade A Certified facility. We only allow premium-grade ingredients to make it into our formulas. High quality? Without a doubt!

And if things don’t quite go to plan? We’ll be with you every step of the way with our award-winning support – our support team are ready to answer your questions to get you on the right track.

Finally, your order is backed by our money-back guarantee. If you’re not 100% happy, you’re covered: get the details here.

Included with Every Order

The 4 Week Fat Blast

The 4 Week Fat Blast eBook

Everything you need to know to shred fat, get fit, and change your life, in less than a month!

Containing all the advice you’ll need to achieve your weight loss goals, get this 178-page ebook free with any purchase.

Simply add any package to your basket to receive this offer. We’ll automatically include the ebook with your order.

Take Control With Phentaslim

Stop Dreaming, Start Achieving.

Thousands of people are changing their lives with Phentaslim.

With improved health, better diets, and lasting weight loss, they’re no longer at the mercy of their appetites.

Join them today and experience the incredible benefits of Phentaslim for yourself.

32 reviews for Phentaslim

  1. Fi

    Very happy with this product! I had been counting calories already, but definitely noticed an improvement when using these pills too

  2. Warren Matthews
    ✔ verified buyer

    Top stuff. Have shifted some stubborn fat around my middle using these. I incorporated these into my current exercise regime as I didn’t make any changes to my lifestyle as such. Two thumbs up.

  3. Kirsty
    ✔ verified buyer

    These didn’t do anything for me or decreased my appetite but everyone is different and some products work for people and some don’t,definitely recommend people trying it there is more positive reviews than negative so plz don’t be put off by this.

  4. Kelly
    ✔ verified buyer

    Using with exercise and seeing a difference. Seeing everything coming together helps to make me feel good about myself, which is just as important as losing the weight. These are not magic pills, you have to use them properly otherwise you’re just kidding yourself.

  5. Amy Rush
    ✔ verified buyer

    Has helped me lose a bit of weight, cant complain about that. Only using two capsules a day though because I find it makes me feel a bit jittery. I do drink coffee as well so probably my own fault lol. I did read a thing about not overdoing the caffeine.

  6. Sian Booth
    ✔ verified buyer

    Very happy with my results so far. Product working great for me.

  7. Naz Rahman
    ✔ verified buyer

    This is a very good product. Can feel the effects. Starting to see the results after a month. More active, eating less takeaway. Every bit helps. Making good progress after years of nothing but weight gain.

  8. Sophie
    ✔ verified buyer

    Starting to see some promising results now. Has certainly helped get me motivated and moving more. Got fed up with fad diets and pills that promise and never deliver. Fat Blast book full of good info, too. Basically, this is for people who are serious about losing weight and doing it the proper way.

  9. Terry
    ✔ verified buyer

    I had my doubts. I was wrong. Absolutely smashing product. I’m down nearly a stone already and I’ve only been at it for only four weeks (almost).

  10. Tanya
    ✔ verified buyer

    Working fab. One month in, nearly a stone gone. Result!

    • Phentaslim Support

      Amazing results. Thank you for letting us know.

  11. Jaime
    ✔ verified buyer

    Phentaslim helps me with my weight loss program. I yo-yo quite a lot with my weight and have found this helps me manage better the different phases, so I’m more often losing weight than I am gaining it. I really have struggled over the years to keep my weight stable. Using this I feel I’m finally getting some control over my body.

  12. Kev

    Bit embarrassed by my weight. Thought I’d give these a go, see if they help. Early days but, yeah, looking promising. Actually lost some weight for once. I am in my fifties now so normal weight loss itself is hard work. Needed help, found it.

    • Phentaslim Support

      Nothing to be embarrassed about, but we get what you mean. Yes, it’s true, losing weight can be more difficult as we age due to a slower metabolism. But, as you’re finding, it certainly does not mean weight loss cannot be achieved. We think you’re doing great; keep going.

  13. Mike
    ✔ verified buyer

    Pretty sure my problem is the same for many. I’ve gained weight around my middle as I’ve gotten older. I can’t really be bothered with heavy exercise anymore just a bit of brisk walking. Taking these twice a day. Breakfast and lunch only. Starting to see the weight reduction on my waist and I’ll be happy if it stabilizes. Not expecting a six-pack! Happy to continue using it. No side effects to speak off. I don’t take the evening capsule because I don’t want to risk getting an energy boost later on when I’d rather be napping.

  14. JG
    ✔ verified buyer

    Top marks from me. Will soon be able to see my feet again, lol.

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