Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets
Precision PH1500 Electrolyte Tablets

Precision PH1500 Electrolyte Tablets

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Regular price £8.99
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  • Three strengths to chose from for different conditions
  • Helps replace the sodium lost through sweat
  • Built for endurance training, racing and hotter days
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  • Free Royal Mail Tracked 48 from £35
Description

Precision Fuel & Hydration PH 1500 Electrolyte Tablets are the strongest hydration tablets in the core Precision range, designed for athletes who lose a lot of sodium through sweat or need more support during long, hot and demanding sessions. Precision describe PH 1500 as a very strong electrolyte drink that delivers 1,500mg of sodium per litre when mixed as directed, making it a useful option for heavy sweaters, hot conditions and longer endurance efforts where hydration starts to become a real performance limiter. 

Each tablet is mixed with 500ml of water, creating a low-calorie hypotonic drink designed to support hydration without forcing extra carbohydrate into the plan. That makes PH 1500 particularly useful when you want to stay on top of sodium losses while keeping fuelling separate. Precision position it as a stronger option for athletes who already know they need more than a standard hydration tablet can offer. 

At Ready Sweat Go, we see PH 1500 as the tablet for tougher conditions and bigger efforts. If you’re heading into a marathon, long ride, ultra, hot-weather block or simply know that you finish training caked in salt, this is the kind of product that can help you stay steadier for longer. Rather than chasing hydration after the damage is done, PH 1500 is about starting with a stronger base and keeping performance from slipping as time and distance build.

Precision also note that PH 1500 is vegan, vegetarian, gluten free and dairy free, with tablets supplied in tubes of 10 tablets. 

If PH 1000 is the sensible all-rounder, PH 1500 is the stronger option for athletes who know they need more. So if you’re unsure which strength to choose, PH 1000 is usually the most sensible place to start.
Shipping information

UK delivery

Royal Mail Tracked 48 is £3.89 for orders under £35 and free from £35.

Royal Mail Tracked 24 is £5.79 below £35, £4.49 from £35 to £54.99, and £3.49 from £55.

Delivery options and final charges are confirmed at checkout.
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Source-checked product data

Know exactly what you are using

Manufacturer information checked against the current Precision product page. Always check the current pack before use.

1 tablet in 500ml waterofficial serving

1,500mg sodium per litre when mixed as directedprimary metric

Single tube; 6-tube pack; box of 12 tubesRSG pack formats

Best for

Hydration plans calling for a higher-sodium drink, often around heavy sweat losses or hot, long sessions.

Activity fit

  • Running
  • Cycling
  • Triathlon
  • Ultra endurance
Nutrition and active quantities
Per tablet: 16 kcal; carbohydrate 1.8g. When mixed as directed, per litre: sodium 1,500mg; potassium 250mg; calcium 48mg; magnesium 24mg.
Ingredients
Citric acid, sodium carbonate, glucose, maltodextrin, sodium citrate, sodium chloride, potassium bicarbonate, calcium carbonate, flavourings, magnesium carbonate, sucralose.
Dietary suitability and allergens
  • Vegan
  • Vegetarian
  • Gluten free
  • Dairy free

The official manufacturer page marks this product gluten free and dairy free. Check the current pack for the full allergen statement.

Preparation and directions
Dissolve 1 tablet in 500ml water. Drink to thirst when sweating where PH 1500 matches the plan.
Training and event use

Training: Mix one tablet into 500ml water and test this strength against individual sweat losses and conditions.

Event use: Use only where the higher strength is part of a rehearsed event hydration plan.

Certification and testing
The official manufacturer page states Informed Sport certification or independent batch testing. The exact RSG stock batch was not independently verified; drug-tested athletes should check the current pack and batch.
Cautions and individual suitability
Fluid and sodium needs are individual. Match strength and intake to your own sweat losses and conditions; seek qualified advice if you have a medical condition, take medication or have been told to restrict sodium. Follow the current pack.

Source: official manufacturer product page, checked 26 August 2026. Always check the current pack before use.

Why Ready Sweat Go loves Precision Hydration.

We stock Precision Hydration because sweat loss is individual, and hydration works best when sodium intake reflects that.

Precision’s strength-based approach removes guesswork, allowing athletes to manage hydration separately from fuelling and adjust intake as conditions change.

It’s a practical, evidence-led system that supports endurance performance without unnecessary ingredients or flavour overload.

Precision Hydration - FAQs

What is Precision Hydration?

Precision Hydration is an electrolyte system designed to replace sodium lost through sweat during endurance training and racing.

Products are labelled by sodium strength, allowing athletes to choose hydration based on how much sodium they lose, rather than relying on a single generic electrolyte drink.

This approach helps athletes hydrate more accurately, particularly during longer sessions, warmer conditions, or high sweat rates.
Why does sodium matter in hydration?

Sodium is the primary electrolyte lost in sweat and plays a key role in fluid absorption, nerve signalling, and muscle function. Replacing sodium appropriately helps support hydration, comfort, and performance during endurance exercise.

Because sodium loss varies widely between individuals, replacing too little or too much can both cause problems.

Precision Hydration focuses on matching intake to actual sweat loss rather than guessing.
What’s the difference between PH 500, PH 1000 and PH 1500?

The difference between Precision Hydration products is the amount of sodium provided per litre:

  • PH 500 provides 500mg sodium per litre. Best suited to lighter sweaters, cooler conditions, or shorter sessions.
  • PH 1000 provides 1000mg sodium per litre. Used by many endurance athletes for everyday training and racing.
  • PH 1500 provides 1500mg sodium per litre. Designed for heavy or salty sweaters, long sessions, or hot conditions.

Choosing the right strength depends on individual sweat rate, sweat sodium concentration, and conditions.

Many athletes combine different formats within the same session.
How do I know which hydration strength to choose?

Most athletes start with PH 1000, as it suits a wide range of endurance training and racing scenarios.

You may prefer:

  • PH 500 if you sweat lightly or train in cool conditions
  • PH 1000 for most long runs, rides, and races
  • PH 1500 if you sweat heavily, notice salt marks on clothing, or struggle with cramps in warm conditions

Many athletes adjust strength depending on weather, duration, and intensity.
Do Precision Hydration products contain carbohydrates?

No. Precision Hydration products focus purely on electrolyte replacement, not energy.

Carbohydrate intake is managed separately using Precision Energy Gels or other fuel sources. This separation allows athletes to adjust hydration and fueling independently, which is especially useful when conditions or intensity change.

This makes them particularly suitable for long training sessions, races, and multi-hour endurance events.
Can Precision Hydration help with cramping?

Cramping can have multiple causes, but inadequate sodium intake is a common factor for some endurance athletes, particularly during long or hot sessions.

Replacing sodium appropriately through hydration can help reduce the risk of cramps related to electrolyte imbalance. Precision Hydration’s strength-based system makes it easier to match sodium intake to sweat loss.
Are Precision Hydration products easy on the stomach?

Yes. Precision Hydration products are designed to be gentle on the stomach, using a straightforward formulation without unnecessary ingredients or strong flavours.
Making them suitable for use over long durations and during hard efforts.
Who uses Precision Hydration?

Precision Hydration products are used by professional and elite endurance athletes as well as serious amateurs.
Athletes associated with Precision Fuel & Hydration include Lucy Charles-Barclay, Sam Laidlow, and Kristian Blummenfelt, alongside competitors at the highest level of Ironman, triathlon, marathon running, and ultra-distance racing.
Are Precision Hydration products vegan and allergen-friendly?

Yes. Precision Hydration products are suitable for vegans and are free from common allergens, including gluten, dairy, and soy.
As with any nutrition product, athletes with specific medical allergies should always check the ingredient list before use.
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