Exogenous ketones are an extremely popular supplement for those following a keto or low-carb diet. They work by providing energy and even supporting physical performance and brain health.
Ketone powders, pills, and liquids have been on the market for a few years now, but there are still a lot of questions concerning their legitimacy, effectiveness, and how they compare to other pre- and post-workout products.
One question, in particular, is how popular exogenous ketone brands stack up against each other.
This guide compares two market-leading products, Perfect Keto’s Exogenous Ketone Base and Pruvit Keto (also known as Ketone Operating System) ketone products.
As with any purchase, it’s important to understand a particular product’s benefits and impacts on your health. Below, you’ll learn the difference between different exogenous ketone supplements and the biggest differences between Perfect Keto’s Base and Pruvit Keto.
What Are Ketone Supplements?
Ketone supplements come in various forms, from powders to pills. And each offers different benefits.
Whether you’re looking for keto products that will help ease the symptoms of keto flu or amplify your workout in the gym, there are certain criteria to keep in mind:
- Do they contain ketones?
- Do they have artificial ingredients and fillers?
- Are there ingredients (such as gluten, soy, or dairy) that are best avoided?
Here, we’ll dive into Perfect Keto and Pruvit Ketone products, including their ingredients, product development, and price.
Keto//OS Product Overview
The Keto//OS products are made by Pruvit and come in four different flavors. Advertised as ketone salts, these products are made via fermentation and claim to help support fat loss, mental clarity, appetite suppression, and workout recovery. Flavors include:
- Keto//OS Max Maui Punch
- Keto//OS Max Swiss Cacao (formerly Chocolate Swirl)
- Keto//OS Splash
- Keto//OS 2.1 Orange Dream (discontinued)
- Ketos//OS Heart Tart
- Keto//OS Lime Time
- Mint Chip Cream
- Raspberry Lemonade
Each product comes either “charged” (with added caffeine) or caffeine-free.
Perfect Keto Base Overview
Perfect Keto’s Exogenous Ketone Base is made with BHB exogenous ketones, which aim to give you some natural energy and help your body transition into ketosis by possibly easing some of the symptoms of the keto flu.
If you’re looking for real energy (not from caffeine) that’s 100% keto-friendly, then Base is for you.
Sweetened with monk fruit and stevia, Base is slightly sweet, preventing that bitter aftertaste that sometimes accompanies supplement products. Perfect Keto comes in the following flavors:
The most important component of any food or supplement is the ingredients. Yes, macros are important if you’re trying to get into or stay in ketosis, but if the food you’re eating isn’t healthy, then you’re not doing your body any favors.
At Perfect Keto, we always recommend high-quality food sources first. What you put into your body matters! Now, let’s break down the main differences between these two products.
The most important ingredient in an exogenous ketone supplement is beta-hydroxybutyrate (BHB). In Keto//OS, the BHB content is described as part of their proprietary blend, so the exact amount is unknown to the consumer. Other ingredients include:
- Carbohydrates (3-5 grams per serving, depending on which Pruvit Keto product)
- Inulin and xanthan gum (fillers)
- Erythritol (4 grams of sugar alcohol)
- Caffeine (optional)
- Dairy (in the Orange Dream flavor)
Notes on Caffeine
Caffeine can provide various health benefits. It’s a great tool for mental alertness and productivity, making you feel stimulated through the adenosine receptors in your brain[*].
However, energy from caffeine comes and goes quickly, which you probably know from that 10 a.m. morning slump. Ketones, on the other hand, are molecules that deliver energy to your cells, so it’s important not to confuse feeling stimulated with real energy.
Notes on Carbohydrates
On a low-carb ketogenic diet, total carbohydrates are limited to roughly 35 grams per day. This helps your body to enter a metabolic state of ketosis where it mobilizes fats as its primary energy source.
Small amounts of carbs, such as 3–5 grams per serving found in Pruvit products, won’t kick you out of ketosis. However, it’s important to understand that this will go toward your carb count for the day.
Perfect Keto Ingredients
Perfect Keto Base only uses beta-hydroxybutyrate (BHB) ketones for energy. In fact, each serving comes with 11.3 grams of high-quality BHB. Other ingredients include:
- Vitamin C
- Natural flavors
Each tub contains 211 grams of product, enough for 15 full-scoop servings or 30 half-scoop servings.
Notes on BHB Ketones
One of the biggest complaints people have about exogenous ketones is GI-distress. Perfect Keto uses salt splits specifically to minimize GI distress from beta-hydroxybutyrate.
BHB is a naturally-occurring molecule called a “ketone body.” In fact, BHB is one of three ketones your body produces when it’s burning fat rather than glucose for fuel.
You can boost your body’s ketone levels by taking BHB ketones in supplement form. Typically, you’ll take BHB ketones in one of two ways: ketone salts or ketone esters. Ketone esters are BHB in raw form with nothing else added.
Typically expensive with a bitter aftertaste, many people report GI distress after taking keto esters. Ketone salts (like the ones found in Perfect Keto Exogenous Ketone Base) are usually mixed with minerals including potassium, calcium, sodium, and magnesium, and come without the negative side effects.
Notes on Stevia
Since “regular” white sugar is off-limits on a low-carb diet, it’s important to know which sweeteners are keto-friendly and which are not.
Certain sweeteners, such as monk fruit and stevia, are keto-friendly because they are sugar-free, carb-free, and hold a zero ranking on the glycemic index[*]. Plus, unlike the sugar alcohols found in Pruvit products, they do not cause digestive distress.
Stevia is typically 200–300 times sweeter than white sugar but does not negatively impact your blood sugar levels. Some studies show that it benefits blood sugar and insulin levels after a meal[*].
Hopefully, the above section cleared up any confusion surrounding the ingredients within Perfect Keto and Pruvit Keto//OS products. Below, you’ll learn about the different customer experiences when purchasing these two products.
Keto//OS Customer Experience
Pruvit uses a Multi-Level Marketing (MLM), or pyramid selling structure. In other words, people refer other consumers to Pruvit because they earn a hefty commission on those products. It’s not possible to purchase Pruvit products without a referral number or special link.
Here’s how it works:
- You’ll add the product, flavor, and serving size of the product you want
- Enter the delivery frequency
- Go to checkout
- Add your “Referrer Code,” aka, the code of the person who referred you to Pruvit
Don’t have a referrer code? Looks like you’re out of luck. That is unless you want to join their MLM.
Perfect Keto Buying Process
Perfect Keto’s customer experience is straightforward: You simply make a purchase. Here’s how it works:
- Choose your flavor
- Choose between buy once or to subscribe for 15% off
- Check out
Even with subscriptions, there’s no commitment — you can cancel or pause your subscription at any time, no questions asked. Plus, you get free shipping for orders over $50.
With Perfect Keto, there’s no MLM or membership requirement. No strings attached.
Before you make your purchase, there is one final component to evaluate: pricing.
Most Pruvit Keto products cost $85 for 15 servings or $130 for 20 servings, depending on the flavor. You can purchase a single, on-the-go pack for roughly $6.50. A monthly “Smartship” subscription will save you 7% to 11%.
On price alone, Perfect Keto products are a better deal. Perfect Keto’s Exogenous Ketone Base costs $39.99 for 15 servings, which comes out to $3.79 per serving.
Ketone Supplements: The Bottom Line
Within the last few years, ketone supplements have become popular among those following a keto diet.
Exogenous ketones, such as those found in Perfect Keto Exogenous Ketone Base and Pruvit Keto//OS, can help boost your energy and help support a healthy keto diet.
However, Pruvit products may have inflated pricing to help support their multi-level marketing structure.
When selecting keto supplements, look for those made with BHB salts, which are exogenous ketones with minerals added. For the best-tasting products that don’t raise your blood glucose levels, look for products sweetened with a low-glycemic sweetener such as monk fruit or stevia.
When deciding between Perfect Keto’s Exogenous Ketone Base and Pruvit products, Perfect Keto wins on ingredients, price, and customer experience.
If you’re just starting the keto diet, consider the Perfect Keto Starter Bundle, which comes with Perfect Keto’s Exogenous Ketone Base, Keto Collagen, MCT Oil Powder (medium-chain triglycerides), and Ketone Testing Strips so you can get into ketosis the healthy way.