Frequently Asked Questions

As of September 27, 2020

Privacy and Security

At Juvenescence, we care about our customer’s privacy. Please review our Privacy Notice.
Yes, using your credit card on Juvlabs.com is safe because we have industry-standard secure-server technology to encrypt all information gathered from our customers at the time of provision and purchase. This means that the information is encoded and unreadable while it travels to our server.
We are happy to take your order by phone, please contact Customer Care at 1-833-JUV-LABS or care@juvlabs.com.

Our Product: Metabolic Switch

We recommend that you consume Metabolic Switch daily. Scientists believe that any time your body is burning ketones, rather than sugar, for energy, you’re supporting a healthy metabolism and fueling your cells. That said, if you miss a serving or aren’t able to incorporate a daily regimen, you can still reap the benefits of Metabolic Switch if you take it as often as you’re able to.
Just like when you add a new food to your diet, your body may need time to adapt to this new macronutrient. That’s why we recommend starting with just a ½ bottle per day and taking it with food. After a few days (3-5), you’ll get used to feeling that “keto buzz” and to the taste. We recommend up to 2 servings daily of either powder or drink (25g total of C6 Ketone Di-ester).
Ketones are a highly effective source of energy, so many users notice what we call a “keto buzz.” Not feeling anything? No worries! Research has shown that you’re still getting the benefits, whether you feel it or not.
The powder and beverage are both ketone ester products with the same health benefits. The main difference is in how you consume them!

Our unflavored powder has the benefit of flexibility. You can easily work it into your morning or other routine, mixing it in with your favorite health beverage, and it’s a great value per scoop. For strict keto dieters, it also contains no net carbs.

For customers looking for a pre-mixed, ready-to-consume option, our ketone ester beverage is the easy go-to.
We’ll be honest. Ketones don’t taste great. Some who have tried other ketone drinks describe the taste as bitter and a bit harsh. We describe our fuel as Chocolate Nitro with an emphasis on Nitro. This is a serious drink for those serious about getting into ketones. The taste may take a little while to get used to. Take the shot quickly or drink half and then drink the other half at a later time.
The somewhat bitter aftertaste is common for all high-quality ketone ester products, including both our powder and beverage options. The advantage of our powder is that it can be easily mixed to soften and even mask the flavor. If you are new to ketone esters or have a sensitive palate, we recommend starting with our powder option--so that you can more easily mask the flavor by mixing with a beverage.
We recommend you start with your favorite health drink and add one scoop of powder for a keto boost, two for deep nutritional ketosis. We recommend starting with smaller servings and mixing your Metabolic Switch Powder with something to soften and even mask the flavor. We’ve found that juice or citrus beverages work best to cut the aftertaste. You might still notice a slight “ketone ester” flavor. If so, we recommend drinking water after consuming your Switch powder to help cleanse the palate. Don’t worry -- you’ll get used to it after a few days!
Nutritional ketosis is said to begin around 0.5 mmol/L of beta-hydroxybutyrate (BHB) in blood. In a human study of Metabolic Switch, we noticed that one scoop mixed with liquid boosted blood ketones comfortably over this threshold of nutritional ketosis, or what we call a ketosis boost, while 2 scoops significantly amplified this response, as would be expected with double the serving. Deep nutritional ketosis for Metabolic Switch indicates values that are significantly higher than 0.5 mmol/L but still in the range for nutritional ketosis of up to 4 mmol/L.
We recommend starting with one scoop and adjusting your intake to as much as two scoops per day to achieve your goals. You might consider monitoring your ketones using keto strips or other devices designed to measure ketosis.
Chances are it's in there! Put the lid back on your powder and shake your container back and forth about 20 times. This will bring your scoop to the top. If by chance it is still missing we can confirm that one scoop is equivalent to 11 teaspoons.
Metabolic Switch contains 25g of C6 Ketone Di-ester as the exogenous ketone ingredient. C6 Ketone Di-ester is made up of two parts (Di means two) C6 (hexanoic acid) esterified to one part (R) 1,3-butanediol. When consumed, the ester bonds are hydrolyzed and the breakdown products C6 and butanediol are absorbed and transported to the liver, the primary site of ketogenesis.
Ketones represent a new fourth dietary macronutrient, in addition to carbohydrates, fats and proteins. Metabolic Switch contains a highly concentrated, highly potent and efficacious level of 25g of C6 Ketone Di-ester. Whenever you add new foods to your diet there is a chance that your body takes a while to adapt and the same is true for ketones. If you aren’t used to consuming ketone esters, you might experience some stomach discomfort for a short while after taking the product. You might not experience any issues. Each body can acclimate differently. To help your body adapt, you can start by taking one serving of Metabolic Switch for a few days before moving to two servings daily. Taking Metabolic Switch with your regular meals is recommended.
The best time to take it is the time that works best for you! Some people like to take Metabolic Switch with their favorite morning beverage. Others like to use it as a nice afternoon energy boost. The more you can incorporate Metabolic Switch into your day-to-day routine, the better!
Yes. The ingredients in Metabolic Switch do not contain gluten. Further, the equipment used to manufacture Metabolic Switch is maintained and controlled to eliminate any potential contact of gluten residue with Metabolic Switch. However, we do not state this on the label because we have not conducted gluten testing of our products.
Metabolic Switch doesn’t have the same weight loss benefits as going on the keto diet. That's because when you’re taking Metabolic Switch, the ketones come from the product, not your own fat. But Metabolic Switch could support your weight loss as part of a holistic diet and exercise regimen.
Metabolic Switch allows you to switch to burning ketones for energy without a restrictive diet or fasting. If you’re already on the keto diet, Metabolic Switch can complement your diet and even help you stay in ketosis. That said, taking Metabolic Switch has not yet shown the same weight loss benefits as going on the keto diet. That's because when you’re taking Metabolic Switch, the ketones come from the powder or drink, not your own fat.
Your health is a function of hundreds of small choices you make every day: food you eat, sleep habits, and exercise. While there’s no such thing as making “perfect” choices, there are ways to stack your balance of good choices. Taking Metabolic Switch gives you one easy win. Swapping energy from processed, high-sugar foods for energy from ketones goes a long way to complement the other good choices you make to take care of your health.
Metabolic Switch does provide the body with energy in the form of exogenous ketones, and therefore can be a great tool for those who are intermittent fasting or to enhance the effects of their ketogenic diet. However, Metabolic Switch can also be consumed as part of your normal diet as a daily ketone supplement and one can still experience many of the beneficial effects of ketosis on the body, without a change in diet.
Results of several laboratory studies have shown that the ingestion of exogenous ketones does in fact lead to ketosis in humans, which has been verified by measurement of blood ketones, not only urinary ketones. Please find this article on our website where we reference several scientific studies: https://www.juvlabs.com/your-health/keto-diet/article/exogenous-ketones-need-to-know.
Usually, changes to your diet take several days before benefits accumulate in a noticeable way. You may notice that you have higher energy levels or an increased ability to focus, but if you don't, it doesn't mean it's not "working" in terms of cellular and metabolic benefit. What matters is that your body has a highly effective and clean-burning source of energy in the form of ketones. You don't have to feel anything to know that it's working.
Since ketones are also a "nutrient," they are metabolized and contribute to the number of calories in our product. Ketones contain approximately 7.7 calories per gram. Metabolic Switch contains 25g of ketone di-ester, which overall accounts for ~ 96 calories. The rest of the calories accounted for in the product come from the fat (~3 calories), carbohydrate (~4 calories) and protein (~7 calories) in the product.
Since ketones are also a "nutrient," they are metabolized and contribute to the number of calories in our product. Ketones contain approximately 7.7 calories per gram. Metabolic Switch contains 12.5g of ketone ester, which overall accounts for ~98 calories. The rest of the calories accounted for in our product come from the protein (~6 calories), and carbohydrate (~6 calories from fiber) in the product.
Whenever you add new foods to your diet, your body may take a while to adapt. Metabolic Switch contains a highly potent and efficacious level of 25g of C6 Ketone Di-ester. If you aren’t used to consuming ketone esters, you might experience some stomach discomfort. To help, start by taking one serving of Metabolic Switch for a few days. Also, taking Metabolic Switch with your regular meals should help you acclimate.
We are committed to supporting and executing scientific experiments on Metabolic Switch. We have partnerships with independent research institutions that carry out testing in model systems and clinical studies that will extend our understanding of the benefits of Metabolic Switch to support healthy aging. In addition, each of our product lots are tested by an independent laboratory to ensure the product meets specifications prior to release.
The Nutritional Panel on the website may vary from the Nutritional Panel on the product for multiple reasons. These include, but are not limited to, an error discovered after final approval of the label could be corrected, a formulation change impacting Nutritional Panel, or an ingredient or ingredient supplier change impacting ingredient specification.
Both shrink-wrap and safety seals are used to ensure tamper-proof packaging and consumer safety. We may use multiple contractors with different packaging equipment and capabilities, so the packaging you receive may be sealed differently. If you receive a product without a shrink wrap or safety seal, or with a safety seal removed or tampered with, please do not use the product. Call customer service and we will be happy to replace it for you.
We value your opinion. If you would like to provide product feedback (product preference or product complaint), please call 1-833-JUV-LABS or email care@juvlabs.com. 
Metabolic Switch is made in the U.S.A.

Juvenescence Subscriptions

Log into your My Account page/My Subscriptions/Next Shipment and select a new delivery date. Hit Save when complete.
In addition to saving money, a monthly subscription allows you to get your daily serving of ketones without taking a break. Research suggests that any time your body is burning ketones, rather than sugar, for energy, you’re supporting a healthy metabolism and fueling your cells. So, while you’ll still reap the benefits of ketones by taking Metabolic Switch irregularly, it seems that the more often you’re taking a sustained daily regimen, the better.
Log into your My Account page/My Subscriptions. Go to Next Shipment to select a new shipping date, or select Ship Now for immediate shipping. Hit Save when you’re done.
That’s up to you! Some people like to be in ketosis daily. Others will take it a few times a week. Find the routine that works best for you and stick with it!
Log into your My Account, go to Address Book, add a new address and set it as your default.
To place your account on hold, or cancel future shipments, sign in to your My Account page/My Subscriptions, and select Skip Next Shipment, then save.
At this time you will need to cancel your drink subscription and place a new order for powder.
For the best user experience, we recommend taking Metabolic Switch every day. With a 28-count subscription, you can ensure you never run out. If you are looking for a lower count subscription, we do offer them on Amazon.
Simply log into your My Account/My Subscriptions and select Cancel Subscription, then save.
Simply select the subscription option and you will receive 15% off your first and future orders.
Go to your My Account/Payment Methods and select Add New Card. Select Set As Default to the card you would like to use.
You will receive an email notification the week before your subscription ships, and a shipping confirmation email on the day it leaves our warehouse. 
Yes! Just log into your My Account page/My Subscriptions. Go to Next Shipment to select a new shipping date, or select Ship Now for immediate shipping. Hit Save when you’re done.
At this time we can only accept credit cards as payment methods for subscription orders which include Visa, MasterCard, American Express, and Discovery Card.

Order Status

We are excited for you to receive your order and we ship out 85% of orders the same business day and 99% of all orders by next business day. Once your order has shipped you will receive a shipping notification email that contains your shipping tracking. You can then track your shipment until arrival. You can also find this information under your My Account/Order History.
“Billing Information Received” on your tracking indicates that your order has shipped from our warehouse and is in the possession of the carrier.
We are excited to get your order to you! We ship with great efficiency with 85% of orders shipping the same business day as they are received, and 99% by close of the next business day.
If your order is held for verification purposes (most commonly billing or address verification) it will ship as soon as we can resolve the issue. This often involves getting clearance from banks or additional information from you.

Pricing

Prices on our website can be updated at any time and may change for special promotions.

Accounts

You can browse, learn and comparison-shop as long as you like. When you are ready to purchase, for non-subscription orders, you can check out as a guest, but we highly recommend setting up an account so you can easily review order history and track shipments. For subscription purchases you will need to set up an account which gives you access to update your subscription selections as needed.
Click on My Account icon in the top navigation. Log in using your current email address and password. You'll then be able to change your account information, including credit card, billing and/or shipping address, email address and password.
Go to My Account at the top of the home page and select “Trouble remembering your password” and enter your email address. You will receive an email to change your password. Still have questions? Please contact Customer Care at 1-833-JUV-LABS or email care@juvlabs.com.
If you are signed in you will see your name in the upper-right navigation bar. Click on your name and select Sign Out. If you are using a public computer, you will want to log off, or "Sign out" of your account, before you leave the computer.
To keep your info safe, make sure your password contains:
  1. Be unique and not reused elsewhere
  2. Be as long as possible and never shorter than 7 characters
  3. Include digits and special characters
  4. Include mixed case letters
  5. Not be based on any personal information
  6. Not be based on a dictionary word
Go to My Account at the top of the home page and select “Trouble remembering your password” and enter your email address. You will receive an email to change your password. Once you reset your password, your account will be unlocked. Still have questions? Please contact Customer Care at 1-833-JUVLABS or email care@juvlabs.com.
Please email us with the name and email address associated with their account that you are requesting to close. Please provide proof of authority under local law that you are the lawful representative of the deceased person, or his/her estate.

Ordering and Payment

Add items to your cart by clicking the “Add to Cart” button displayed along with the product description. When you have added all of the items you wish to purchase to your cart, click the Continue To Checkout button. Enter your shipping address and method, payment and billing information as directed. Confirm your order by clicking the “Submit Order” button at the bottom of the confirmation page
We work hard to get your orders processed as quickly as possible. Due to the speed of most of our shipments, we are not able to make any changes to your order once it has been submitted.
We work hard to get your orders processed as quickly as possible. Due to the speed of most of our shipments, we are not able to cancel orders once the order has been submitted.
Your credit card is charged when your order is shipped from our warehouse.
Yes! You can enroll in our subscription service and receive 15% off each order. Never miss a ketone filled day with our regular deliveries. Click here to learn about our subscriptions.
Yes. Click on the My Account at the very top of the home page. Log in using your email address and password. Go to Order History to see all your orders.
We will immediately notify you by email of any complications with your order, including credit card authorization issues.
We accept the following payment methods: Visa, MasterCard, American Express, Discover Card, PayPal, and ApplePay.  All subscription orders must be paid for by a credit card at this time. 
Sales Tax is charged on shipments to jurisdictions where sales tax is applicable, determined by the guidelines set forth by the jurisdiction the item is shipped to. Taxes are estimated and will be final on your order confirmation. The amount of tax charged is based on current tax rates. Shipping charges may also be subject to tax in applicable states. Tax will be refunded for returned items.

Shipping Policies

We work very diligently to get you your orders as fast as possible. We ship 85% of orders the same business day as received, and almost 99% by close of the next business day (peak: add one business day).
Your order ships from our distribution center in Kentucky.
We have 4 shipping options.  Please note, shipping time is in addition to processing time of 1-2 business days.    Economy, free, up to 10 days after processing.     Standard, $5,   3-6 business days after processing.     2nd Day Air Express, $10.00,   2 business days after processing (not available for U.S. Territories, P.O Boxes).  Next Day Air Express, $20.00,   1 business day after processing  $20.00 (not available for U.S. Territories, P.O Boxes).
All orders shipped to U.S. Territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, Palau, and the Northern Mariana Islands), P.O. Boxes, APO, FPO or DPO addresses, are shipped USPS for free. When you place your order on the web, the shipping option will automatically default to the economy option.
For orders shipping to Hawaii, Puerto Rico, Alaska and any U.S. Territories, orders may take up to 3-5 weeks to arrive.
Currently, we only ship to addresses in the United States, APO/FPO/PPO, and U.S. Territories. You can purchase from anywhere in the world, as long as you are shipping the order to a U.S. address and pay with a U.S. addressed credit card. 
You will first receive an email confirming your order was received, and then an email notifying you when your order has been shipped.
Yes. When you go through the order checkout process, you will be able to enter separate addresses for billing and shipping.
We highly recommend using expedited shipping for any holiday orders placed in December to guarantee delivery by the holidays as carriers continue to have significant delays.
For delivery by 12/24/221:

The last day to select free economy delivery is 12/7/2021

The last day to select $5 expedited ground delivery is 12/10/2021

Ordering 12/19/ 2021 use 2-day expedited shipping

Ordering 12/21/2021 use overnight expedited shipping

Return Policy

Your satisfaction is our top priority! You may return your unopened purchase within 30 days and receive a refund in the original form of payment.
If you would like to make a return, please contact Customer Care at 1-833-JUV-LABS or email care@juvlabs.com.
Upon receipt of your return we will issue a refund to your original form of payment.
We make every effort to package your order so that it will arrive in great condition, but sometimes items can be damaged during shipment. We understand your frustration and we will replace the product as quickly as possible. If you have received a damaged item, please contact Customer Care at 1-833-JUV-LABS or email care@juvlabs.com. We will need your name, order number and the item number that was damaged.
If you received the wrong item, please contact Customer Care at 1-833-JUV-LABS or email care@juvlabs.com. Give us your name, order number and the item that was not correct along with what item you should have received. We will send you a mailing label to have the incorrect product returned to us, and send out the correct product right away! You will receive the correct one before you know it.
Yes, but you must complete your return following the Amazon return process.
Our Customer Care specialists are ready to help! Please call 1-833-JUV-LABS or email us at care@juvlabs.com.

Amazon Orders

Any orders placed on Amazon can only be tracked on Amazon.
Any changes to orders placed through Amazon but follow Amazon policies.
Amazon returns must be completed by following the Amazon return process.

Customer Care

Please call us at 1-833-JUV-LABS or email care@juvlabs.com.  Customer Care is available Monday through Friday 9 AM - 6 PM EST.  If outside of the United States, please email us at care@juvlabs.com.
Contact Us
We are here to help answer any questions you might have.