Precision PH500 Electrolyte Tablets single closed tube
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets single closed tube
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets
Precision PH500 Electrolyte Tablets

Precision PH500 Electrolyte Tablets

Pack Size
Price
Regular price £8.99
Regular price Sale price £8.99
/
  • Three strengths to chose from for different conditions
  • Helps replace the sodium lost through sweat
  • Built for endurance training, racing and hotter days
Tax included. Shipping calculated at checkout.
  • In stock, ready to ship
  • Backordered, shipping soon
  • Free 48Hr Tracked Shipping from £35
Description

Precision Fuel & Hydration PH 500 Electrolyte Tablets are a moderate-strength hydration option designed for athletes with low to moderate sweat and sodium losses. Precision describe PH 500 as a moderate strength electrolyte drink that helps you stay hydrated when you’re sweating, delivering a lighter sodium concentration than PH 1000 or PH 1500.

Each tablet is dissolved in 500ml of water, creating a low-calorie hypotonic drink that is designed to support fluid absorption without adding unnecessary fuel. Precision also position PH 500 as a good option for athletes doing everyday training, working in cooler conditions, or following a fasted or low-carb approach where a lighter hydration product makes more sense.

At Ready Sweat Go, we see PH 500 as the easiest entry point for athletes who want better hydration support without jumping straight to the strongest products in the range. If you don’t lose large amounts of salt in sweat, prefer a lighter-tasting drink, or simply want a practical electrolyte option for regular training, PH 500 makes a lot of sense.

Precision also note that PH 500 is vegan, vegetarian, gluten free and dairy free, and the tablets come in tubes of 15 tablets. 

If PH 1500 is the stronger option and PH 1000 is the all-rounder, PH 500 is the lighter everyday choice.
Delivery information

UK delivery

48Hr Tracked Shipping is £3.89 on orders under £35 and free from £35.

24Hr Tracked Shipping is £5.79 on orders under £35, £4.49 from £35 to £54.99, and £3.49 from £55.

Delivery times are estimates from dispatch, measured in business days, and are not guaranteed. Available services and final charges are confirmed for your address at checkout. See our delivery policy for full details.
Ask a question

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Pairs well with

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 waterserving size

500mg sodium per litre when mixed as directedkey amount

Single 15-tablet tube; 6-tube pack; box of 12 tubesavailable formats

Best for

Lower-to-moderate sodium hydration plans, cooler conditions or lighter sweat losses.

Activity fit

  • Running
  • Cycling
  • Triathlon
  • Hiking
Nutrition and active quantities
When mixed as directed, per litre: sodium 500mg; potassium 250mg; calcium 48mg; magnesium 24mg. Check the current RSG pack for per-tablet energy, carbohydrate and the complete ingredient panel.
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 500 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 where PH 500 is part of a rehearsed event hydration plan; adjust only from evidence, not product-name strength alone.

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.

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.
Recently viewed