Onnit HydraTech Instant Review – How Does It Compare?

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By Jack Cincotta, MS

Reviewed by Juliana Tamayo, MS, RDN - Last Updated

onnit hydratech instant review

If you’re an athlete, hydration is likely something you think about often. After all, staying properly hydrated ensures your body can state at its best throughout the workout, practice, or competition.

For high-intensity athletes, water alone likely won’t cut it, and this is where supplements can come in handy. There are quite a few hydration supplements available on the market, which means finding the right pick can be challenging. So in this review, we’re going to take a closer look at one hydration option called Onnit HydraTech Instant.

This hydration supplement is designed to provide your body with the electrolytes it needs to keep moving. In this Onnit HydraTech review, we’ll find out if this supplement’s claims are truly reality or not. Ready to see if Onnit HydraTech Instant can help you stay hydrated and energized? Let’s get started!

HydraTech Instant Formula

About Onnit HydraTech Instant

HydraTech Instant, created by Onnit, is an electrolyte hydration formula designed for people engaging in strenuous physical activity. It is supposedly very easily absorbed by the body, allowing you to hydrate quickly when you need it most. With its combination of electrolytes and carbohydrates, it is designed to sustain your energy throughout the duration of whatever activity you’re involved in. 

Onnit HydraTech Instant Benefits

The benefits of HydraTech Instant are quite straightforward: increased hydration, which should support sustained physical activity. Specifically, you are to expect more endurance, less fatigue, and a decreased risk for cramps, headaches, fatigue, and other factors associated with dehydration. Put simply, HydraTech Instant is designed to be the ultimate hydrator for athletic performance. 

Onnit HydraTech Instant - Drinking

So, what exactly is in Onnit HydraTech Instant? Continue on to find out. 

Onnit HydraTech Instant Ingredients

The active ingredients in Onnit HydraTech Instant are:

  • Sodium (260mg)
  • Calci-K, which yields:
    • Calcium (130mg)
    • Potassium (260mg)
  • TRAACS, which yields:
    • Magnesium (25mg)
  • Sugars (7g), in the form of:
    • Cane Sugar
    • Additional Fructose

(Note: These amounts are based on one serving, which is one stick packet.)

Onnit HydraTech Instant - Ingredient


The first electrolyte in Onnit HydraTech Instant is sodium, likely the most well-known electrolyte. Sodium is one of the most vital electrolytes in the extracellular fluid and plays a huge role in fluid balance. Low sodium is related to headaches, confusion, nausea, as well as muscle cramping. Since a lot of sodium is lost through sweat, supplementation can be beneficial, especially on hot days.


Up next is Calci-K, which is a trademarked form of calcium potassium phosphate citrate. Calcium, potassium, and phosphate are all electrolytes with important roles. Calcium is necessary for muscular contractions and transmission of nerve impulses, among other things. And it has a reciprocal relationship with phosphate to maintain equilibrium. 

Potassium is also involved in muscular contractions and has to be balanced with sodium intake for overall health. Potassium also is needed for proper heart functioning. And low potassium levels may cause weakness, fatigue, and muscle twitching…all of which you obviously don’t want when exercising. 

Lastly, phosphate is important for energy (ATP) production and for transmitting nerve impulses. 

Calci-K is unique in that it offers a higher bioavailability compared to other forms of these electrolytes. So while you may find these three ingredients separately in other options, like Ultima Replenisher and Celarity Electrolytes, having them all in one as Calci-K can provide further benefits. Calci-K is specifically designed to be used in liquid drinks, so it fits right in this product. 

TRAACS Magnesium

Another ingredient in Onnit HydraTech Instant is TRAACS Magnesium, which is a trademarked form of magnesium bisglycinate chelate. So, it is just a magnesium supplement. Magnesium is an electrolyte involved in energy metabolism, muscular contraction, and relaxation, as well as neurotransmitter release and general nervous system health. 

TRAACS uses an amino acid chelate system because magnesium is bound to the amino acid glycine. Itincreases the absorption and bioavailability of magnesium. Research has shown that chelated minerals have a higher bioavailability and are more easily absorbed and utilized. 


Onnit HydraTech Instant also includes a small amount of sugars in the form of cane sugar and additional fructose. It supposedly contains a ratio of 2:1 glucose to fructose. The combination of glucose and fructose appears to be better for exercise performance than glucose alone. Taking these carbohydrates during exercise can reduce fatigue and increase endurance, although one typically needs a lot more than what is included in HydraTech Instant. 

Does Onnit HydraTech Instant Work?

After looking at all the ingredients and benefits listed with Onnit HydraTech Instant, it should very likely work. Onnit HydraTech Instant contains key electrolytes that are lost during exercise, which should help to maintain fluid balance and overall performance. Also, there are ingredients in here that are particularly well-absorbed, such as Calci-K and TRAACS Magnesium, so this should further enhance the effectiveness of the product. 

Onnit HydraTech Instant - Increased Hydration

It’s clear that, especially for high-intensity athletes, sports drinks containing water plus electrolytes and carbohydrates are superior to water alone. The only concern is the low amount of carbohydrates in this product (8g); if you’re engaging in intense exercise for a long time, you’re going to need more than that for optimal performance. So, the main benefits of Onnit HydraTech Instant stem from its electrolyte content. 

Claims vs. Reality 

Simply put, Onnit HydraTech Instant claims to improve physical performance. And based on the ingredients in here, this likely will happen. The electrolytes in Onnit HydraTech Instant offer an easy way to replace what is lost through sweat, thereby maintaining physical performance and reducing the risk for cramps, headaches, dizziness, and other problems. 

Who is Onnit HydraTech Instant Best For?

Based on the ingredients, HydraTech Instant is best for athletes engaging in high-intensity exercise, especially in hot environments, since these factors pose the greatest risk for electrolyte depletion.

For optimal results, Onnit HydraTech Instant should have more carbohydrates in it, so be mindful of your specific needs and whether you should consume an additional carbohydrate-based drink along with HydraTech Instant during your workouts or competitions. But it should provide at least some performance benefits for most high-intensity athletes. 

Onnit HydraTech Instant - Best for Athletes

Is Onnit HydraTech Instant Safe?

While Onnit HydraTech Instant is likely safe, it may cause some side effects. These include:

  • Fast heartbeat
  • Increased blood pressure
  • Muscle twitching
  • Nausea, vomiting, stomach cramps, abdominal pain, and diarrhea

Where to Buy Onnit HydraTech Instant

If you’re interested in buying Onnit HydraTech Instant, head on over to the Onnit website at this link.

Onnit HydraTech Instant Website

Each package of Onnit HydraTech Instant contains 30 servings (30 stick packets) for a one-time purchase price of $59.99. Alternatively, you can choose the subscribe and save option, which will bring the price down 15% to $50.96. You can choose to get the product every 7, 15, 20, 30, 45, 60, or 90 days. 

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So, the price ranges from about $1.70 to $2.00 per serving, which is not cheap but not really expensive either; it’s a pretty average price for a product of this nature.

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Jack Cincotta, MS

Jack Cincotta is a certified holistic health coach through AFPA and a board-certified holistic health practitioner through AADP. He has written hundreds of articles on nutrition and supplementation. Jack has a M.S. degree in Psychology and is passionate about researching the science behind nutrition. He often uses research-backed supplementation protocols for many of his clients to optimize results.