Pack size: 30 sachets

ShopVitamins and minerals

Doctor Life

Optimized Singles

Spring ION+

Professional Electrolytes – Perfectly Balanced

56,99 zł

Magnesium supports normal electrolyte balance
Minerals support normal muscle function
Magnesium helps reduce tiredness and fatigue

Overview

Electrolytes for your everyday water. Spring ION+ adds minerals involved in electrolyte balance, muscle function, and nervous system function without the intense flavor of a typical sports drink. Potassium, the main positively charged ion inside cells, is paired with sodium, chloride, magnesium, and calcium for their complementary roles.

At the heart of the formula / Spring ION+

Thoughtful support. Clear purpose.

01Magnesium supports normal electrolyte balance
02Minerals support normal muscle function
03Magnesium helps reduce tiredness and fatigue
04Adds five key electrolytes to your water
05No flavors, sweeteners, colors, or unnecessary additives

Doctor Life / 01

Spring ION+

Made for your daily routine.

We chose soluble mineral salts—gluconates, chlorides, and lactate—to add electrolytes to water without sugar, flavorings, or sweeteners. Minerals play a role in everyday fluid balance as well as during exercise.

Spring ION+ offers a broader mineral profile than a simple sodium-and-sugar drink. Magnesium contributes to electrolyte balance and helps reduce tiredness and fatigue, while potassium, magnesium, and calcium support normal muscle function. It is a simple way to add minerals to water without flavorings, sweeteners, or colors.

Doctor Life / 02

Spring ION+

Why do electrolytes matter?

Electrolytes are minerals that carry an electrical charge when dissolved in body fluids. They help transmit nerve signals, support muscle function, and maintain fluid balance. Potassium is found mainly inside cells, while sodium is concentrated outside them. Magnesium and calcium also take part in muscle activity and many enzyme reactions. A formula can therefore combine several complementary minerals.

Doctor Life / 03

Spring ION+

What does the research say about Spring ION+?

Hydration studies show that a drink’s composition can affect fluid retention. Electrolytes influence the concentration of dissolved particles and the kidneys’ response; replacing sodium with water is particularly relevant after heavy sweating. Beverage Hydration Index studies also show that an electrolyte drink does not automatically retain more fluid than plain water. The full formula, amount consumed, and circumstances matter. Spring ION+ is designed primarily to add minerals to everyday drinking water. Human research also supports the absorption of potassium gluconate, one of its ingredients. These findings concern ingredients and drink composition, not a clinical trial of the finished product.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Ingredient amounts for the servings shown in the table.
Ingredient	1 sachet
Potassium	355 mg (18%*)
Calcium	60 mg (7.5%*)
Magnesium	45 mg (12%*)
Sodium	185 mg
Chloride	300 mg (37%*)

*NRV: Nutrient Reference Value

Full ingredient list

Potassium gluconate, sodium gluconate, magnesium gluconate, potassium chloride, calcium lactate, sodium chloride.

How to use

Part of your daily rhythm.

How to use

Dissolve 2–3 sachets in 500–1,000 mL of water, stir, and drink throughout the day.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. A balanced diet and a healthy lifestyle are recommended. Store at room temperature, away from sunlight and out of reach of young children.

Science & sources

Understand the formula.

Electrolytes contribute to the body’s fluid and mineral balance. Research shows that hydration depends on mineral proportions, exercise conditions, the volume consumed, and the full beverage formulation. These publications provide context for the combination of minerals in Spring ION+.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01The Beverage Hydration Index: Influence of Electrolytes, Carbohydrate and Protein

Mindy Millard-Stafford, Teresa K. Snow, Michael L. Jones, HyunGyu Suh

Nutrients (2021), 13(9), 2933. DOI: 10.3390/nu13092933; PMID: 34578811.

A randomized trial compared water with beverages containing electrolytes and energy-providing ingredients. Electrolytes influenced urine osmolality and contributed to the drinks’ hydration properties, although the effect depended on the full formulation.

Read publication ↗

02A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index

Ronald J. Maughan, Phillip Watson, Philip A. A. Cordery, Neil P. Walsh, Samuel J. Oliver, Alberto Dolci, Nidia Rodriguez-Sanchez, Stuart D. R. Galloway

The American Journal of Clinical Nutrition (2016), 103(3), 717–723. DOI: 10.3945/ajcn.115.114769; PMID: 26702122.

A study in 72 healthy participants found that beverages differed in their effects on short-term fluid balance. Electrolytes and other ingredients influenced fluid retention. The research helped develop a beverage hydration index that considers more than the volume consumed.

Read publication ↗

03Volume repletion after exercise-induced volume depletion in humans: replacement of water and sodium losses

Susan M. Shirreffs, Ronald J. Maughan

American Journal of Physiology-Renal Physiology (1998), 274(5), F868–F875. DOI: 10.1152/ajprenal.1998.274.5.F868; PMID: 9612323.

Following exercise-induced dehydration, researchers compared drinks with different sodium contents. Higher sodium intake reduced subsequent fluid loss through urine. The authors also highlighted overall electrolyte balance, including potassium. The study illustrates the importance of fluid composition when replacing sweat losses.

Read publication ↗

04Bioavailability of potassium from potatoes and potassium gluconate: a randomized dose response trial

Claire J. Macdonald-Clarke, Berdine R. Martin, Linda D. McCabe, George P. McCabe, Pamela J. Lachcik, Meryl Wastney, Connie M. Weaver

The American Journal of Clinical Nutrition (2016), 104(2), 346–353. DOI: 10.3945/ajcn.115.127225; PMID: 27413123.

A controlled trial examined potassium absorption from sources including potassium gluconate. Absorption was high, and blood potassium responses increased with dose. The study examined potassium gluconate, one of the mineral forms used in Spring ION+, rather than the finished product.

Read publication ↗

FAQ / Spring ION+

Good questions. Clear answers.

Talk to us ↗

Is Spring ION+ a conventional isotonic sports drink?

No. Conventional isotonic drinks usually combine electrolytes with carbohydrates and flavoring. Spring ION+ adds minerals to plain water without flavorings, sweeteners, or colors—a practical option if you want electrolytes without a sweet drink.

Are electrolytes only useful after exercise or heavy sweating?

Exercise and heat increase fluid and mineral losses, but electrolytes have everyday roles throughout the body. Magnesium contributes to electrolyte balance, and potassium, magnesium, and calcium support normal muscle function. Whether you need a supplement depends on your diet, activity, and individual needs.

Does electrolyte water always hydrate better than plain water?

No. Electrolytes can affect fluid retention and the kidneys’ response, particularly after sweating, but the effect depends on the drink’s composition, the amount consumed, and your starting hydration status. Spring ION+ provides a measured way to add minerals to water; it does not promise better hydration in every situation.

Why does Spring ION+ contain more potassium than sodium?

Potassium and sodium have complementary roles. Potassium is the main positively charged ion inside cells, while sodium predominates outside them. Spring ION+ has a broader everyday mineral profile. It is not a high-sodium formula designed specifically to replace substantial sweat losses.

Why use mineral gluconates, chlorides, and lactate?

These salts release mineral ions when dissolved. Potassium gluconate has shown good absorption in controlled human studies. Calcium lactate is a soluble calcium salt, while chlorides provide both the relevant mineral and chloride. Together, they allow us to make a mineral powder without added flavorings or sweeteners.

Can I use Spring ION+ while taking medication?

Consult a doctor or pharmacist first if you take medication or have been told to monitor your sodium, potassium, or other mineral intake. They can review your total intake from food and supplements alongside your treatment.

Doctor Life formulas