30 Pack
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Designed for Hydration
Backed By Science
Core Hydration Sachets are scientifically formulated electrolyte sachets designed to optimize your hydration and elevate mental and physical performance. With our core blend of sodium, magnesium and potassium, they are ideal for electrolyte replenishment to hydrate throughout the day or around training times.
Save up to 46% on Sachets with our Sachet Bundle.
Core Hydration Electrolyte Sachets deliver a science-backed ratio of electrolytes, namely sodium, potassium and magnesium to help you maintain cellular hydration and electrolyte balance.
500mg Sodium - Optimises hydration via improved fluid absorption, greater fluid retention and maintenance of electrolyte balance.
200mg Potassium - Regulates cellular fluid balance, supporting cardiovascular health, nerve and muscle function.
20mg Marine Magnesium (Aquamin) - Contributes to electrolyte balance, energy-yielding metabolism, nerve and muscle function.
Calculated at Checkout.
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Product is non-returnable.
Sodium plays a pivotal role in hydration. It increases fluid absorption, fluid retention, maintains electrolyte balance and stimulates thirst, thus increasing fluid intake. Research shows that drinks containing sodium can improve endurance, mood, and reaction times, whilst reducing the risk of cramps and hyponatremia.
Learn moreMagnesium is imperative for over 300 enzymatic reactions, including those that produce and use ATP, the body's energy currency. It aids hydration by moving water into cells, essential for muscle function, energy, and performance.
Learn morePotassium works closely with sodium to maintain normal cellular fluid balance, nerve impulses, and muscle contractions. Potassium chloride specifically may counteract the effects of too much sodium, maintaining a healthy electrolyte balance.
Learn more
When To Use Core Hydration Sachets
Core Hydration Sachets can be used any time of the day.
We are generally more dehydrated upon waking, so you may find some benefit to consuming Core Hydration Sachets first thing in the morning.
We also suggest that you use Core Hydration Sachets 30 minutes before, during, or immediately after high intensity training to replace the fluids and electrolytes lost in sweat.
For maximum efficacy, we recommend that you mix one sachet with 500ml-1L/16-32OZ of water.
Core Hydration Sachets contain three key electrolytes in bioavailable forms: Sodium (as salt/sodium chloride), Potassium (as potassium chloride), and Magnesium (as marine magnesium citrate), scientifically formulated to optimise hydration, and improve mental and physical performance.
You can fully rehydrate within 30 minutes with sufficient fluid and electrolytes.
Check out our article on hydration strategies to find out more.
Exercising at moderate to high intensities can result in significant electrolyte losses and electrolyte imbalances, which can negatively impact mental and physical performance. Water alone is not able to replace those electrolytes. Core Hydration electrolyte sachets are specifically designed to rapidly restore electrolyte balance and optimise cellular hydration.
We recommend that you add 1 sachet to 500ml-1L of water.
Core Hydration Sachets are vegan, making them suitable for those on a plant-based diet.
Core Hydration Sachets contain 0g of carbohydrates, making them suitable for those on a ketogenic diet.
Individual electrolyte requirements vary significantly. They are dependent upon factors such as sweat rate, sweat electrolyte composition, activity levels, training intensity, environmental conditions and more.
It is important to note that Core Hydration Sachets are meant to supplement your electrolyte intake; it should not be your sole source of electrolytes.
A well balanced daily diet is likely to provide a significant amount of your electrolyte requirements and we highly recommend a food-first approach. However, you can supplement with 1-4 sachets per day, depending on your activity level. For any specific guidance on daily salt and electrolytes intake, you should consult your doctor.
Additionally, if you are pregnant or nursing, taking any prescription medications or have any pre-existing medical conditions, please consult a medical professional before consumption and use only as directed.
Overall rating: 4.864865 / 5 from 37 reviews.
Review topics: [packaging, taste, sachets, cadence, order, performance, electrolytes].
"I absolutely love this hydration pack! The packaging is gorgeous, and I really appreciate the meaning behind the brand—it feels so intentional and authentic. During my runs—whether long, short, or on hot days—the hydration is perfect. It keeps me going without being too salty. The flavors are amazing—my absolute favorite is melonberry, but orange is also fantastic. Plus, it’s super easy to open and carry—just what I need for a hassle-free run."
"I genuinely love these electrolyte sachets. They’re incredibly easy to open, with no mess or frustration like I’ve experienced with other brands. That alone sets them apart. The taste is outstanding—clean, refreshing, and actually enjoyable to drink. Even my kids love them, which says a lot. What really stands out, though, is Cadence’s commitment to clean ingredients and transparency. You can tell there’s real intention behind the formulation, and that level of trust is hard to find in this space. After trying these, I have zero interest in going back to anything else. Cadence got this right."
"great product, great packaging, great taste, great fuel for daily performance"
"I’m a heavy sweat guy and these have definitely made hydration much easier"
"Does exactly what it says! Great flavor, not too much, not too little."
"Love them. Works fast and taste great!"
"Placed my order 3 weeks ago and still not delivered."
"Been using these while on my runs & they’ve been a game changer 👏🏽"
"The orange is a nice natural taste & settles nicely in the stomach while running or biking. Not an over powerful flavor that leagues a tangy taste during exercise."
"Best flavor I’ve tried so far"
