Home / Best Keto Strips to Measure Ketones (2022): Review & Buyers Guide

Best Keto Strips to Measure Ketones (2022): Review & Buyers Guide

Why would you want to measure your ketone levels? To see if you’re into ketosis, of course.

And why would you use a keto strip? Because they’re convenient, affordable, and easy to use.

Why should you spend the time researching for the best keto strip? Because these are accurate, lab-grade products, with an easy-to-read chart.

If you want to measure your progress while you’re following a keto diet, don’t settle on cheap, possibly old, or damaged strips.

Read the article below to find out which product is the best and what you should look for before buying urine keto strips.

Spoiler alert: most people make one mistake with keto urine strips that puts their lives in danger. Read this article to find out which deadly mistake you should avoid.

What Are Ketone Test Strips? How Do I Measure My Ketone levels?

Ketone strips analyze your urine to assess the volume of acetoacetates, one of the main ketone bodies.

The second most important ketone body are called beta-hydroxybutyrates, which appear in blood tests.

What Are Ketone Strips

Keto breathalyzers measure ketosis the levels of acetone, which forms from acetoacetate.

The most precise type of analysis is blood keto analysis – I’ll tell you all about that below.

If you want to learn how to read SlimFast, the process is simple:

  • Wash your hands and grab a clean container.
  • Take a urine sample.
  • Dip the urine strip in the urine sample or your urine stream, according to the instructions on the box.
  • Shake the strip to remove excess urine.
  • Wait 15-40 seconds according to the instructions until the strip changes its color.
  • Compare the test strip color against the included chart to see how deep you’re into ketosis.

Top 5 Keto Strips

Here are the best keto strips on the market:

Perfect Keto Ketone Testing Strips – #1 Choice

Perfect Keto Ketone Strips

Perfect Keto Ketone Testing Strips are the best keto urine strips available because they are developed by physicians and so they’re lab-grade accurate.

Keep in mind that keto urine strips measure ketones in urine accurately only for the first few weeks; afterward, your body becomes expert at burning most ketones, so fewer are secreted in urine.

These strips are easy to use to measure levels, whether you’re following a keto-friendly diet, Atkins diet, or if you have type 1 diabetes to find out if you’re at risk for diabetic ketoacidosis.

Perfect Keto is convenient for on-the-go tests because it’s not messy and it’s quick, seeing as you’ll get your results in only 40 seconds.

This helps you stay on track with your keto-friendly diet, as well as avoid the risk of very high ketone levels.


  • The most accurate urine test strips on the market
  • Quick 40 seconds results
  • Easy to use
  • Easy to see what foods kick you out of ketosis
  • 100 lab-grade strips/ pack
  • Convenient for keto newbies
  • Longer than other strips so you don’t get your fingers wet


  • Short shelf life. The advertised shelf-life is six months, but in reality, the strips might go bad faster. That way, there’s a chance you won’t get to use all 100 strips in your pack.


Smackfat Ketone Strips


If you’re interested in weight loss, the Smackfat brand was built by someone who lost 85 pounds in just a few months following the keto diet.

So if he built this brand from the ground up after losing so much weight, you’d figure he’s passionate about delivering the same experience to his customers.

Ketone Strips by Smackfat

That’s why these strips are accurate and easy to use if you need to test your levels.

If you buy them on Amazon, you get a satisfaction guarantee which allows you to change them for something else if you’re not happy with how they work.


  • Quick results in 40 seconds
  • Easy to interpret the results
  • Accurate enough
  • 100 strips
  • Amazon satisfaction guarantee


  • 3-month shelf life when opened
  • Can’t pee on them because the test area is very small. These are the dip-and-read sort of strips, which are less convenient if you’re on the go.


Ketostix Ketone Strips

Ketostix by Bayer

Ketostix is a popular brand of ketone strips with many happy customers.

Just like the Perfect Keto and Smackfat strips, there are a hundred strips in the box.

You’ll get one pack if you buy this product from Amazon, but Walmart packs it in two boxes.

That said, the airtight container is a favorite feature for most users because the strips last longer.


  • Quick results
  • Accurate
  • Bright and easy to read colors


  • Dip-and-read: can’t pee on them.
  • You’re supposed to check exactly 15 seconds after dipping the strip in urine to get an accurate reading, so you have little time to compare the color on the strip with the color on the measuring chart.


Keto-Mojo Ketone Strips

Keto Mojo 50 Strips

These Ketone Strips from Keto Mojo are ketone blood test strips.

The box contains 50 of them, along with a clear instructional video that takes you through all the steps of using them.

Keto Mojo Test

The downside is that you need the full kit first, which includes a lancet device and the blood ketone testing meter.

Although blood ketone strips are more accurate than urine ketone strips in the long run and Keto Mojo is a renowned brand, the kit plus the strips might be too expensive for some.

These strips are a good idea to get if you’re experiencing a plateau or if your urine strips don’t provide conclusive results anymore.

If you feel like you’re following your low-carb diet, but your urine levels of ketone are low, get the Keto Mojo strips for blood sugar test.

If your urine is extremely dark in color and you fear you’re at risk for ketoacidosis, the Keto Mojo Strips report back a result in numbers, not an interval.

This is a more precise way to find out if you need to consult your GP.


  • Extremely accurate
  • Instructional video
  • FDA-approved and endorsed by leading names in the keto industry
  • 10-second results
  • Reliable customer support


  • The most expensive, considering you have to buy the Keto Mojo test kit as well. However, this kit has a lifetime warranty and measure blood glucose as well.
  • Although they’re extremely accurate, these strips aren’t necessary for healthy, beginner keto-ers but rather for keto-addicts and people with type 1 diabetes.


Nurse Hatty – Good Ketone Strips

Strips by Nurse Natty

The Nurse Hatty strips are made in the USA and approved by the FDA.

These are longer-than-average urine test strips, so at 4.2 inches you can dip them in your urine stream without getting your fingers wet.

Apart from the strips, the box includes various diet plans to detox, reduce your calories, and minimize bloating, plus a guide to ketosis.

Nurse Hatty claims to produce these trips from high-quality materials, but there’s no info online regarding the ingredients that go into these strips.

If you’re to believe most customers, though, Nurse Hatty is a product that works.

Although it’s not FDA-approved, the strips have been lab-tested and approved by in-house quality controls, both for efficacy and safety.


  • A stabilized reagent that lasts 90 days
  • 100 strips + 50 free until Oct. 15th
  • 18-month shelf-life warranty
  • 4.2-inch strips
  • Comprehensive educational pack
  • 40-seconds reading time
  • Fairly accurate


  • You need to check the results at exactly 40 seconds after dipping the strip into the urine.
  • Some users complain they can’t easily distinguish between the different pink shades when they read the results.


How to Read Keto Strips / Ketone Strips Color Chart

Each brand of urine strips features a color chart either on the box, or inside on a separate paper.

The first thing you need to check, apart from the overall accuracy of said test, is how easy it is to distinguish the different shades and colors.

Color Chart

All test strips have a negative, beige light shade for “negative.” This is a control shade, and it means you’re not in ketosis.

All the other shades mean you’re in ketosis.

The colors indicate your levels of ketone at different intervals, typically grouped as trace, small, moderate, large, and extra-large.

The large and extra-large intervals are the darkest, while the trace and small are the lightest.

Pro Tips:

  • Don’t assume that a darker color is better; dark doesn’t mean you’re burning more fat. If your test strip isn’t negative, you’re in ketosis. Darker colors mean your kidneys are under duress, and you need to drink more water.
  • If you have type 1 diabetes, you want the results to be negative.
  • If you want to lose fat weight, any color change is an indication that you’re on a good track to weight loss. Blood ketones should measure at least 0.5 mM/dL, but the interval between 1.5 to 3.0 mM/dL is ideal.

Are Keto Strips Accurate?

Are They Accurate

Not all strips are created equal. Some brands are better than others, meaning they give more precise results.

That said, the best keto urine strips from the best brands on the market are indeed accurate, but blood strips like Keto Mojo or Precision Xtra Blood Ketone Test Strips are better in the long term.

That’s because, after the first few weeks of ketosis, your body starts using up more and more ketones, so fewer appear in the urine.

Besides, keto blood tests convey results in numbers, whereas keto urine strips convey intervals so:

  • They’re harder to read, especially if you’re not good at distinguishing between similar shades when you’re under pressure. The strips’ accuracy is affected by your interpretation of the result.
  • Intervals are less accurate than numbers, and your own biases might affect how you interpret the result. For instance, you might be disappointed by a lighter color, although it means you’re in ketosis and might be too excited by a dark brown or purple color, although it means you’re in danger.

What Are the Benefits of Using Keto Strips?

Keto strips have quite a few benefits:

  • They’re more affordable than keto blood strips or keto breathalyzers.
  • They’re not invasive, so you don’t have to prick yourself for blood.
  • They’re convenient and quick.
  • You can use them frequently at the beginning of your ketogenic diet to measure progress – two times per day.
  • Some of them can easily be used on the go.
  • Most of them offer quick results.
  • They help new keto-ers keep track of their progress. You can understand which foods kick you out of ketosis and avoid them.

What is the Difference Between Good Keto Strips and Keto Sticks?

Strips and keto sticks are used interchangeably to define the same thing: a strip you dip in urine to find out how deep into ketosis you are.

Good Keto Strips

There are several differences between good strips and not so good ones, though, as the best ones:

  • Are approved by the FDA, endorsed by medical practitioners, and extensively tested both in terms of effectiveness and accuracy.
  • Produce more accurate results, faster.
  • Have a longer shelf-life.
  • Come with important satisfaction or money-back guarantees.
  • Have a more user-friendly design. For instance, they can be longer and easier to grasp.
  • They’re manufactured from better materials, so they’re eco-friendly.
  • They come with an easy-to-read chart, with bright colors.
  • They may include other useful extras or info in the package, or the company’s website can be packed with free resources on various diets and weight management options.

How Often Should I Use Ketone Test Strips? Best Time to Use Ketosis Strips

Time To Use Strips

Ketone test strips are better used first thing in the morning or a few hours after your last evening meal.

It’s believed that food and exercise influence your ketone levels, whereas drinking too much water before getting tested dilutes your urine, and therefore your urine ketone levels appear lower.

Blood test strips are better used once per day, after a meal to keep track of how different foods affect your ketosis.

Measuring Ketosis Using Urine When You Are on a Ketogenic Diet

When you’re just beginning ketosis, urine analysis can tell you the state of ketosis depending on your ketone levels:

  • Very light: 0.1-0.5 mmol/ L; 1-5 mg dL
  • Light: 0.6-1.5 mmol/ L; 6-12 mg/dL
  • Medium: 1.6-3.0 mmol/ L; 16-30 mg/ dL
  • Strong: more than 3.1 mmol/ L; more than 31 mg/ dL

How Many Ketones in Urine for Ketosis?

When you’re in ketosis, you have high levels of ketones in your urine. These can vary from a few hundred to a few thousand IU/ml. Since ketosis causes you to burn fat for energy, you want to be close to 3,000 IU/ml or below. Now, obviously, ketones in the urine tell you you’re in ketosis, but how many of these are you looking for?

Are you looking for the “thumbprint” – the shape of the ketones in the urine? Or are you looking for the total number of ketones in the urine? It’s true that the ketones in the urine indicate that you’re in a state of ketosis, but you need more than just the ketones to indicate ketosis. The Small and Large Ketones in Urine – Why It Matters. Well, first let’s discuss the size of the ketones in your urine. Since a small number of ketones can indicate ketosis, a large number of ketones can also indicate not being in ketosis.

What Color Should Ketone Strip Be For Weight Loss?

A little over a year ago, a couple of studies pointed out that ketones were the main hormones responsible for the fat-burning process. By definition, they are lipids used by your body to produce energy. In normal people, they are synthesized in the liver and called fatty acids. Ketones can either come from your body’s breakdown of fats, such as triglycerides, or from the breakdown of proteins in your muscles. It should be noted that ketone supplements such as NuPhen hydro and CholoPlus are not suitable for the purpose of weight loss.

To break it down, ketones are present in muscle tissues as well as fat tissues. The crucial difference between ketones and other chemicals present in your body is that ketones only cause a temporary change in glucose metabolism. The reason why it does not cause an instantaneous change is that when your body is already adapted to this chemical system, the whole process takes just a fraction of a second. Ketone strips, for example, are only useful for short-term use since they will reduce the glucose levels in your blood for a few hours.

What is a Good Ketone Level for Ketosis?

Ideally, you want to achieve a reading between 1.1 and 1.6 on your ketone meter. This is what is called the “action level,” and it is the highest level that indicates you are in ketosis. It is also the same level as when your body is producing ketones from your liver.

Some people can tolerate higher readings for the sake of avoiding hypoglycemia. But you don’t want to be high enough to start to produce liver fat in your urine. As mentioned above, the goal is to get your body to create ketones as a way to get rid of the dangerous liver fat. How to Run a Ketogenic Diet. If you are in good ketosis, your body will start to go into starvation mode. This is why you want to practice intermittent fasting when running keto.

Final Words and Which One is the Best In The Market?

All the products in this review are good, but Perfect Keto Ketone Strips are the best. Why?

Because they’re the most accurate urine test strips on the market, almost on par with blood strips for newbie keto-ers, Perfect Keto strips are extremely convenient and value for money.

They are longer than other strips, and you can pee on them.

Other urine strips have a very small test area, meaning you need to collect your urine in a clean bowl first.

Perfect Keto strips are among the easiest to read, with a clear chart that uses bright colors.

If you want to order these strips now, I have an exclusive 15% discount for these strips.

You can buy keto urine strips from most online and offline stores, like Rite Aid, Target, Walgreens, and CVS.

Ketosis Strips Boots is another good option, and so is Amazon.

But as urine strips have a short shelf-life, you need to get them from a trustworthy retailer who doesn’t sell mid-life strips or damaged ones.

Remember my 15% discount for Perfect Keto strips and happy keto-ing!