Exogenous ketones are an extremely popular supplement for those following a low-carb diet. Exogenous ketone products such as those from Pruvit Keto promise to improve athletic performance, increase fat burning, and enhance cognitive function.
Since they’re so new to an already saturated market, there are plenty of questions concerning their legitimacy, effectiveness, and how they compare to other pre- and post-workout products.
This guide compares two market-leading products, Perfect Keto’s Exogenous Ketone Base and Pruvit Keto (also known as Ketone Operating System) ketone products.
Any product can make a marketing claim, and consumers should be educated on which claims are valid.
As with any purchase, it’s important to understand a particular product’s benefits and impacts on your health. Below, you’ll learn about about several things to look for in a product, thereby helping you make an educated buying decision.
Ketone supplements come in various forms, each offering different benefits. Whether you’re looking for keto products that will help you enter ketosis, improve mental clarity, negate the negative side effects of keto flu, or improve weight loss, you’ll want to evaluate products on the shelf (or online, through Amazon) by the following criteria:
- Do they contain ketones?
- Do they promote ketosis?
- Do they have artificial ingredients and fillers?
- Are there ingredients (such as gluten, soy, or dairy) that are best avoided?
Below, you’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 claim to be made through fermentation and help to 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 help put you into ketosis faster. Sweetened with monk fruit, they’re slightly sweet, preventing that bitter aftertaste that sometimes accompanies supplement products. Perfect Keto comes in the following flavors:
Perhaps the most obvious differences between these two products lies within the ingredients. Here’s a closer look inside each product.
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, make no mistake: caffeine is not usable energy, which you probably know from that 10 a.m. morning slump. Ketones are molecules that deliver energy, so it’s important not to confuse feelings of stimulation with real energy.
Notes on Carbohydrates
On a low-carb ketogenic diet, 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 in 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
In Perfect Keto products, only beta-hydroxybutyrate (BHB) ketones are used — more on these below. 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 high 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 ketone bodies 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 typically 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
When you first arrive on the Pruvit website, the buying process looks pretty simple. After selecting your flavor, you’ll enter your desired serving size (available in on-the-go pouches or bulk), delivery method (one-time purchase or subscription), and quantity. Simply click “Add to Cart” and a pop-up arrives on your computer screen.
Although you just went through the entire ordering process, you are ineligible to make a purchase. You are required to enter a “Referrer Code” before checking out, entering the name of the person who referred you to the website.
That’s because Pruvit uses a Multi-Level Marketing (MLM), or pyramid selling structure. In other words, people refer other consumers to Pruvit because they earn a commission on those products, not necessarily because they believe in the products.
Perfect Keto Buying Process
Perfect Keto’s customer experience is straightforward: You simply make a purchase. Select your desired flavor, choose between a single-, double-, or three-pack, then opt to buy once or to subscribe for 15% off.
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’s one final criteria to evaluate: pricing. Most keto products cost $85 for 15 servings. Some flavors are available in a 20-serving package for $130. Finally, 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 $56.99 for 15 servings, which comes out to $3.79 per serving. If you purchase a double-pack, the price drops to $55.85 each, then $52.43 each for a three-pack.
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 you enter ketosis, whether it’s for the first time or you fell out after a carb-laden meal. They can also help you burn fat, improve cognitive function, and aid weight loss.
Unfortunately, many supplements come with clever marketing ploys and impressive packaging. It’s important to educate yourself on the benefits of ketones and what ingredients to look for so you can make the most informed decision.
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.