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Phentaslim contains natural, clinically-proven ingredients that make losing weight faster and easier.

We’ve included all the essential vitamins and minerals needed to ensure you’re getting the optimal balance of macronutrients.

It’s Everything You Need to help Boost Energy and Burn Calories.

How To Use Phentaslim

Directions: Take ONE capsule spaced evenly, three times per day. Take each capsule with a full glass of water. Allow around four hours between taking each capsule.

Advice: Do not exceed the recommended dose. If you miss taking a capsule, leave it out and do not double-up the next dose. Persons sensitive to caffeine should use a lower dose (eg. one capsule per day) to assess their tolerance. It is advised to avoid using this product late in the day to avoid disruption to sleep. This product is suitable for vegetarians and vegans.

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

Phentaslim Nutritional Information

Ingredient 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%

Figures based on the total Daily Serving Size of 3 capsules. Each bottle contains 30 Daily Servings.

caffeine anhydrous

Caffeine Anhydrous (270mg)

Boosts metabolism, energy, and curbs hunger.

Studies have concluded caffeine to be effective for weight loss. Its a metabolic stimulant that increases wakefulness, alertness and focus [2]. It also effects the appetite by making you feel less hungry. And for those who exercise regularly, could help train at a greater power output and/or to train longer [3] [4].


Acetyl L-Carnitine (200mg)

Fuel metabolism, protect lean muscle and support exercise recovery.

Popular amino acid that plays a vital role in the metabolism of fat. Positively influences fat metabolism by increasing the transport of fats into cells for energy. This ingredient truly helps exercise recovery and fat metabolism.


Korean Panax Ginseng (40:1) (1200mg)

Supports mental performance and well-being.

Contributes to physical and mental well-being and supports energetic alertness. Supports and contributes to the body’s natural defences and the immune system.


Magnesium (80mg)

Normalises functioning of the nervous system.

Contributes to normal muscle function and helps to maintain normal bones and teeth. Phentaslim helps combat low magnesium levels to ensure optimal muscular functioning.


Niacin (Nicotonic Acid) (20mg)

Important for general good health.

A form of vitamin B3. When taken at sufficient levels vitamin B3 can lower cholesterol levels and strengthen heart health.

black peppercorns

Black Pepper extract (4:1) (24mg)

Improves absorption of other ingredients.

We make sure you get the ingredients into your body effectively and efficiently with the use of black pepper extract aiding absorption by up to 150%.

Vitamin B2

Riboflavin (Vitamin B2) (1.3mg)

Helps release energy from food.

Vitamin B2 is not stored in the body so we ensure you get the optimum amount to breakdown and release energy from your food.

Vitamin B12

Vitamin B12 (as Cyanocobalamin) (10mcg)

Boosts mood, energy, concentration and the immune system.

A water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. Cyanocobalamin is suitable for vegans and vegetarians.

The 4 Week Fat Blast

Included With Your Order: 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!

This 178-page eco-friendly digital-download contains all the advice you’ll need to achieve your weight loss goals.

NEW EDITION Made for easy reading on your phone

Simply add any package to your basket to receive this must-read guide to lasting weight loss.

SAVE With Phentaslim Deals Today:

SYNO Immune
Assist wellbeing with SYNO Immune boosting vitamins and pro-biotics.
£39 Absolutely No-Strings FREE BOTTLE with every order.

Value Pack


2+1 Bottle Free - 270 Capsules
90 Days Supply

+ Free UK Delivery 4 Week Fat Blast SYNO Gift

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RRP £78

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3+2 Bottles Free - 450 Capsules
5 Months Supply

+ Free UK Delivery 4 Week Fat Blast SYNO Gift

Limited Stock SALE

RRP £117

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One Bottle - 90 Capsules
30 Days Supply

+ 4 Week Fat Blast SYNO Gift

Save Today

RRP £39

No Commitment

No Subscriptions

Please Note: This is NOT a subscription service. We do not currently offer subscriptions for our products. You will only receive the items you order today. Please keep this in mind when selecting your package to avoid any inconvenience.