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71 Verified reviewsInstant isotonic drink for increased hydration and performance during physical activity
Replaces electrolytes lost through sweating, provides easily absorbed carbohydrates for energy and helps with muscle functions
Get more energy and sufficient hydration to make the most of your exercise and day!
Mix 20 g (5 scoops) in a glass (500 mL) of water and drink before or during exercise. Weighing is recommended for accurate dosing.
Isotonic
Ingredients: maltodextrin, glucose, dextrose, vitamin C (ascorbic acid), magnesium citrate, natural orange flavor, stabilizer: cellulose, calcium citrate, L-carnitine, rock salt, B-complex (thiamine mononitrate, riboflavin, pyridoxine hydrochloride, cyanocobalamin, folate acid, calcium-D pantothenate, nicotine amide), Sweetener: steviol glycosides from stevia
| Nutritional values | per 20 g |
| Vitamin C | 2000 mg (2500% NRV*) |
| Magnesium citrate | 150 mg (40% NRV*) |
| Calcium citrate | 125 mg (15% NRV*) |
| L-carnitine | 500 mg |
| B-complex | 50 mg |
| – Vitamin B1 | 1,1 mg (100% NRV) |
| – Vitamin B2 | 1,4 mg (100% NRV) |
| – Vitamin B6 | 1,4 mg (100% NRV) |
| – Vitamin B1 | 2,5 µg (100% NRV) |
| – Folic acid | 200 µg (100% NRV) |
| – Pantothenic acid | 6 mg (100% NRV) |
| – Niacin | 16 mg (100% NRV) |
* NRV = nutritional reference value
Money-back guarantee for 60 days
Free shipping for orders from £50.00
Delivery within 2 working days
Questions? Call us: 020 8089 0131
Our customers also confirm that it works
4.9 / 5
I have been using Isotonic for my workouts for a few weeks now and I have to say I am really impressed with the results. It keeps me hydrated throughout my workout and I don't feel tired or fatigued like I used to. I also love the added vitamins and minerals that help support my immune system. Overall, great product!
As someone who plays sports regularly, I need to make sure I am properly hydrated and my electrolytes are in balance. Isotonic has been a game changer for me. It keeps me energized and helps me recover faster after an intense game. I also love the added L-carnitine which helps with muscle function.
I recently started a new job which requires a lot of physical activity and I was struggling to keep up with the demands of the job. Isotonic has been a lifesaver for me. It keeps me hydrated and provides the energy I need to get through the day. I also love that it has added vitamins and minerals that contribute to normal psychological functions. I feel more focused and alert throughout the day.
Made from scientifically proven active ingredients
L-carnitine is an amino acid that is crucial for fat metabolism because it ensures that long-chain fatty acids are transported to the mitochondria where they are converted into energy.
Vitamin C contributes to the protection of cells from oxidative stress and is also essential for the formation of collagen.
Magnesium plays a key role in maintaining the normal functioning of the nervous system and muscles and supports energy metabolism and electrolyte balance. With magnesium citrate, the form that allows the best absorption and bioavailability, you can replace lost magnesium and avoid deficiencies.
Calcium is an essential mineral that plays a crucial role in maintaining strong bones and teeth. Calcium citrate, a natural form of calcium, can help replenish calcium levels in the body. A deficiency in calcium can lead to weakened bones and teeth.
The B complex is a group of vitamins B1, B2, B6, B12, folic acid, pantothenic acid and niacin, which are important for our nervous system. In addition to their common function, each of the B vitamins has other important roles in our bodies. Vitamins B1 -5 and B12 work against fatigue and exhaustion. Folic acid is important for the normal functioning of the immune system. Vitamin B2 is important for the absorption and metabolism of iron and also acts as an antioxidant, protecting our cells from oxidative stress.
Traceability of our raw materials
Discover the nature in our supplements! We carefully select and monitor every ingredient to ensure optimal performance, backed by proven scientific effectiveness. Our commitment to transparent traceability guarantees the integrity and excellence of all the elements in our products. Our products are IFS Food Global Markets certified under registration no.: 00063/0 and ECO certificat under certified no.: EPR-26420/22-1.
60-day money-back guarantee
To make your purchase risk-free, we offer a 60-day money-back guarantee.
If you’re not completely satisfied with the product, simply contact us and we will refund your money.
4,9 / 5 
Reviews (71)Stay hydrated and reach your full potential.
Providing a balanced blend of carbohydrates, essential vitamins, minerals, electrolytes and fluids to support hydration and maintain optimal performance during physical activity, it is the perfect rehydration drink for all activities. With added L-Carnitine for maximum energy efficiency!
Isotonic is suitable for anyone who is active and wants to take their training or performance to the next level. It replaces lost electrolytes and supports muscle function.
Maltodextrin, glucose, dextrose, vitamin C, magnesium citrate, natural orange flavour, stabiliser: cellulose, calcium citrate, L-carnitine, rock salt, B-complex, sweetener: steviol glycoside.
Isotonic has a pleasant and refreshing orange flavour.
We will do our best to process your order the same day and send it for delivery. On average, packages are delivered in 2 business days.
No worries! If the product does not meet your expectations, we offer a 60-day refund.
71 Verified reviewsInstant isotonic drink for increased hydration and performance during physical activity
Replaces electrolytes lost through sweating, provides easily absorbed carbohydrates for energy and helps with muscle functions
Get more energy and sufficient hydration to make the most of your exercise and day!
Mix 20 g (5 scoops) in a glass (500 mL) of water and drink before or during exercise. Weighing is recommended for accurate dosing.
Isotonic
Ingredients: maltodextrin, glucose, dextrose, vitamin C (ascorbic acid), magnesium citrate, natural orange flavor, stabilizer: cellulose, calcium citrate, L-carnitine, rock salt, B-complex (thiamine mononitrate, riboflavin, pyridoxine hydrochloride, cyanocobalamin, folate acid, calcium-D pantothenate, nicotine amide), Sweetener: steviol glycosides from stevia
| Nutritional values | per 20 g |
| Vitamin C | 2000 mg (2500% NRV*) |
| Magnesium citrate | 150 mg (40% NRV*) |
| Calcium citrate | 125 mg (15% NRV*) |
| L-carnitine | 500 mg |
| B-complex | 50 mg |
| – Vitamin B1 | 1,1 mg (100% NRV) |
| – Vitamin B2 | 1,4 mg (100% NRV) |
| – Vitamin B6 | 1,4 mg (100% NRV) |
| – Vitamin B1 | 2,5 µg (100% NRV) |
| – Folic acid | 200 µg (100% NRV) |
| – Pantothenic acid | 6 mg (100% NRV) |
| – Niacin | 16 mg (100% NRV) |
* NRV = nutritional reference value
Money-back guarantee for 60 days
Free shipping for orders from £50.00
Delivery within 2 working days
Questions? Call us: 020 8089 0131
Customer reviews
Isotonic
Ingredients: maltodextrin, glucose, dextrose, vitamin C (ascorbic acid), magnesium citrate, natural orange flavor, stabilizer: cellulose, calcium citrate, L-carnitine, rock salt, B-complex (thiamine mononitrate, riboflavin, pyridoxine hydrochloride, cyanocobalamin, folate acid, calcium-D pantothenate, nicotine amide), Sweetener: steviol glycosides from stevia
| Nutritional values | per 20 g |
| Vitamin C | 2000 mg (2500% NRV*) |
| Magnesium citrate | 150 mg (40% NRV*) |
| Calcium citrate | 125 mg (15% NRV*) |
| L-carnitine | 500 mg |
| B-complex | 50 mg |
| – Vitamin B1 | 1,1 mg (100% NRV) |
| – Vitamin B2 | 1,4 mg (100% NRV) |
| – Vitamin B6 | 1,4 mg (100% NRV) |
| – Vitamin B1 | 2,5 µg (100% NRV) |
| – Folic acid | 200 µg (100% NRV) |
| – Pantothenic acid | 6 mg (100% NRV) |
| – Niacin | 16 mg (100% NRV) |
* NRV = nutritional reference value
Mix 20 g (5 scoops) in a glass (500 mL) of water and drink before or during exercise. Weighing is recommended for accurate dosing.
Warning:
The recommended daily amount or dose must not be exceeded. A nutritional supplement is not a substitute for a balanced and varied diet. Consumption during pregnancy and breastfeeding is not recommended. Store in a dry and cool place. Keep out of reach of children!
Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.
Why choose Nature`s Finest?
15
years of tradition
400+
unique products
50+
patented active ingredients
3mil+
satisfied customers
We believe in the perfection of nature. Our commitment extends to responsible sourcing of raw materials, including sustainability, ethics, and fair business principles. We prioritize eco-friendly packaging to reduce our carbon footprint.
The effectiveness of our products is confirmed by studies and research that are verifiable and repeatable. All our products are tested in independent laboratories, as our goal is to provide our customers with only the highest quality and effective products for their money.
Nature offers effective solutions for many challenges we face. Our experienced development team uses and combines these exceptional substances in our products so that the body can best utilize them. Active ingredients in our products are present in proven effective amounts, not just in small and negligible percentages.
Our products are tested through various user studies and trials that ensure their safety and effectiveness. We always listen carefully to the feedback from our customers and consider their opinions, criticisms, and suggestions to ensure that our products are truly tailored to their needs.
We are proud to have only the best experts in the field of nutrition and food supplements on our team, who ensure the development and exceptional quality of our products. With outstanding dedication, they lead studies and research and collaborate with external laboratories, inspection bodies, and other experts to ensure the highest quality and safety of our products.
With rich experience and professional knowledge of the industry, our experts strive to provide Nutrisslim customers with the most innovative products, thus maintaining its status as one of the leading companies in the field of nutrition and food supplements.
M.Sc. Nutrition Engineering
Food and Nutrition Engineer
#WeAreNature
»Committed to delivering the most natural products to your home«
For over 15 years, Nature’s Finest has been dedicated to offering natural solutions for those who want to overcome challenges and discomforts with a healthy lifestyle. We use only 100% natural ingredients, traditionally grown without additives or unnecessary processing. Whenever possible, we use ingredients from organic farming, supported by the SI-EKO certificate. This ensures that no genetically modified organisms (GMOs) or pesticides are used.
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