
Frequently Asked Questions About Full Spectrum CBD, THC-Free CBD, Delta-8 THC, CBD Savings Programs & CBD Discounts.
Are C4 Healthlabs™ CBD Oils organic?
Will C4 Healthlabs™ CBD products cause me to fail a drug test?
All C4 Healthlabs™ CBD products are derived from hemp and contain less than 0.3% THC (tetrahydrocannabinol), which is the federal legal limit. This is a very small amount and not enough to produce intoxicating effects.
However, because trace levels of THC are naturally present in full-spectrum and broad-spectrum hemp extracts, there is always a small possibility that using CBD products could result in a positive drug test, especially with frequent or high-dose use.
If you are subject to workplace or athletic drug testing, we recommend speaking with your physician or healthcare provider before using any hemp-derived CBD products.
Will C4 Healthlabs™ Zero-THC CBD products cause me to fail a drug test?
C4 Healthlabs™ Zero-THC CBD products are carefully formulated using broad-spectrum hemp extract that contains no detectable THC (tetrahydrocannabinol). Because these products are completely THC-free, the risk of failing a drug test is extremely low.
Our THC-free CBD line allows you to experience the natural benefits of cannabinoids—such as balance, calm, and recovery, without the concern of THC exposure. Each batch is third-party tested to verify purity, potency, and the absence of detectable THC.
While no CBD product can ever guarantee a specific drug test result, our Zero-THC formulas are designed for individuals who want to enjoy CBD without worrying about THC or drug testing. If you have ongoing testing requirements, consult your healthcare provider before use.
Are there any side effects of using CBD Oil?
Who is C4 Healthlabs™?
C4 Healthlabs™ was founded by a team of health professionals and advocates dedicated to helping others actively participate in their wellness. One of the founders of C4 Healthlabs™ began researching CBD oil for his son as an additional treatment for the symptoms of Autism. When he found few products that worked, and minimal resources to assist him with decision making, he realized there was a major void in the market for those seeking to make informed and confident decisions regarding CBD.
With his more than 25 years of clinical experience, and a master’s degree in herbology and oriental medicine, he began researching cannabidiol as a therapeutic agent. An intensive study showed that CBD oil quality was truly dependent upon the health and handling of the plant, from seed to processing. His mission for C4 Healthlabs was to produce and make available to others high-quality CBD oil specifically formulated for therapeutic effect.
C4 Healthlabs™ has grown to include additional wellness supplements, including Liposomal vitamins, and its community includes thousands of members across the world who are dedicated to taking their health into their own hands.
To learn more please visit our About Us page.
How should I store my C4 Healthlabs™ products?
C4 Healthlabs™ CBD oils do not require refrigeration, but if you prefer taking CBD oil chilled you can refrigerate it without impacting the product potency. We recommend storing your C4 Healthlabs™ CBD oil upright at room temperature, away from direct sunlight.
Once opened, C4 Healthlabs™ Liposomal Vitamin C and Liposomal Vitamin B-Complex require refrigeration. If you decide to travel with your liposomal vitamins, be sure to carry them in a cooler with an ice pack, and immediately refrigerate upon arrival to your destination.
C4 Healthlabs™ Liposomal Vitamin C bottles are triple-sealed before shipping; a safety seal on the outside that is removed before use, a second seal on the top of the bottle, also removed before use, and a third seal inside the bottle top, which is to remain in the top to prevent leakage. Use caution to keep liposomal vitamin C upright during travel.
I would love to start selling C4 Healthlabs™ CBD oil products, where do I start?
What is hemp extract?
What is Hemp Oil?
What is cannabidiol (CBD)?
What is CBD oil?
What are cannabinoids?
What is the Endocannabinoid System?
The Endocannabinoid System (ECS) is a complex network of receptors, enzymes, and natural cannabinoids that helps the body maintain balance, or homeostasis. It plays a vital role in regulating functions such as mood, sleep, immune response, inflammation, metabolism, and energy levels.
The ECS is active throughout the central nervous system, immune system, and many organs and tissues. When it functions properly, it helps the body respond to stress and maintain overall wellness.
C4 Healthlabs’ CBD products are formulated to naturally support the Endocannabinoid System, helping to promote optimal balance and enhance the body’s ability to function at its best.
What is the Entourage Effect?
Can my dog take C4 Healthlabs™ CBD oil?
How should I decide what C4 Healthlabs™ product is best for my dog?
What is the difference between C4 Healthlabs™ 500mg, 1000mg and 2000mg CBD oil?
How much CBD is in each serving of C4 Healthlabs™ CBD oil?
What extraction process is used for C4 Healthlabs™ full spectrum CBD products?
What extraction process is used for C4 Healthlabs™ THC-free CBD products?
What is the difference between the C4 Healthlabs Full Spectrum and THC-free CBD oils?
Do C4 Healthlabs™ CBD oils include a dropper with measurements?
I can’t seem to fill the dropper to the 1mL serving when the bottle is low. Is this normal?
How many servings are in each bottle of C4 Healthlabs™ CBD Oil?
Can the color of my C4 Healthlabs™ hemp extract CBD oil vary from batch to batch?
Yes, it’s normal for the color of your C4 Healthlabs™ CBD oil to vary slightly from one batch to another. Because our products are made from organic, full-spectrum hemp extract, natural factors like sunlight, rainfall, and temperature during the growing season can cause subtle differences in color, aroma, and flavor.
At C4 Healthlabs™, we prioritize consistency and purity by sourcing from a single farm, maintaining strict growing standards, and performing third-party lab testing on every batch. These rigorous quality-control measures ensure that while color or taste may vary slightly, the potency, cannabinoid profile, and effectiveness remain consistent in every bottle.
Can the smell and taste of my C4 Healthlabs™ CBD oils vary from batch to batch?
Yes. Although our double-distillation process results in pure cannabinoid oils that contain little-to-no residual hemp flavor or aroma, occasionally a batch may result in a little higher potency (higher CBD concentration) which can affect the taste and aroma of our CBD oils. When this happens, you may notice a slight musky or earthy aroma to our CBD oils, but this is generally undetectable when taken sublingually under the tongue, away from the taste buds. This varying level of CBD concentration occurs naturally during the extraction process, but we always guarantee the potency to be at or above the label claim.
Our Citrus CBD oils are flavored with a therapeutic-grade orange essential oil, cold-pressed from the peel. If you prefer another flavor, you may purchase a therapeutic-grade essential oil from your local health food store and add a few drops (5-10 drops) to our Natural (unflavored) CBD oil. Just be certain that what you purchase is a “therapeutic-grade” essential oil that is intended to be taken internally. One brand that is widely available in many health food stores or through an independent representative is d?TERRA. Look for the symbol on their products with the letter “I” for products that can be taken internally.
Which C4 Healthlabs™ product is right product for me?
This question is most likely one of the most popular questions we receive, and, in some cases, there is not an easy answer. There are many factors in dosing: age, weight, health condition(s), prescription drugs, constitution, and each person metabolizes CBD oil differently. The basic rule of thumb is the more chronic and severe the condition the more milligrams or higher potency may be needed.
In a few cases a customer has started with a lower strength and was either seeing little results or no results. After increasing the dose, or adding another dose in the day, a significant difference is observed. C4 Healthlabs 1000mg seems to the a relatively good product to begin a CBD regimen. After charting your response to different dosages, the dose can be adjusted up or down as needed. Of course, we always recommend consulting with your doctor before beginning a CBD regimen, especially if you have a serious illness or take prescription medications.
How does full spectrum CBD work?
Full spectrum CBD works by interacting with the body’s endocannabinoid system (ECS), which helps regulate balance in areas like stress response, sleep, discomfort, immune function, and mood.
Unlike CBD isolate, full spectrum CBD contains a range of naturally occurring hemp compounds, including cannabinoids, terpenes, and trace amounts of THC (within legal limits). These compounds work together in what’s commonly called the entourage effect, meaning they may support each other’s effectiveness.
Instead of targeting one single pathway, full spectrum CBD supports the body’s ability to maintain overall balance (homeostasis), which is why people often use it as part of a daily wellness routine.
Is CBD safe to use daily?
For many people, CBD is considered safe for daily use when taken as directed and sourced from a reputable brand. Research and widespread consumer use suggest that consistent, low-to-moderate daily dosing is generally well tolerated.
That said, CBD can interact with certain medications, especially those processed by the liver. If you are pregnant, nursing, managing a medical condition, or taking prescription medications, it’s important to talk with your healthcare provider before using CBD regularly.
Daily use is often preferred because CBD works best when it builds up in the system over time, rather than being taken occasionally.
What is the best time of day to take CBD oil?
The best time of day to take CBD oil depends on your personal goals and how your body responds.
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Morning use is common for people looking to support calm focus, stress management, or daytime balance.
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Evening use may be helpful for those focused on relaxation, winding down, or supporting sleep routines.
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Some people choose to split their dose, taking a smaller amount in the morning and evening for more consistent support throughout the day.
Because everyone’s endocannabinoid system is different, it may take a few days of experimentation to find the timing that works best for you.
Why doesn’t CBD work for everyone?
CBD doesn’t work the same way for everyone because each person’s body chemistry, endocannabinoid system, and lifestyle factors are different.
Some common reasons CBD may feel ineffective include:
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Using a dose that’s too low
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Inconsistent use
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Low-quality or improperly formulated products
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Expectations that CBD will act like a fast-acting medication rather than a wellness supplement
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Individual differences in metabolism or ECS sensitivity
CBD is not a one-size-fits-all solution. Finding the right product, dose, and routine often makes a significant difference in results.
What are the ingredients in C4 Healthlabs™ Full Spectrum CBD Oils?
C4 Healthlabs™ Full Spectrum CBD Oils are crafted from organically grown, Tennessee hemp, never seed oil. Each bottle contains only two simple ingredients:
1. Organic full-spectrum hemp extract (CBD oil) – rich in naturally occurring cannabinoids and terpenes.
2. Organic MCT oil (medium-chain triglycerides) – a clean carrier oil that enhances absorption and bioavailability.
Our Citrus CBD Oil formula includes a third ingredient for natural flavor: therapeutic-grade orange essential oil, cold-pressed from the peel.
C4 Healthlabs™ CBD oils contain no sugars, dyes, or artificial ingredients—only pure, plant-based goodness. Through our proprietary extraction and double-distillation process, we produce CBD oils that are over 99% pure and virtually tasteless and odorless, with consistent potency and clean results in every batch.
What are the ingredients in C4 Healthlabs™ THC-free CBD Oil?
All C4 Healthlabs™ THC-free CBD oils are made from hemp plants grown exclusively in the USA and contain absolutely no seed oil. They contain two ingredients; hemp-derived CBD oil and organic MCT oil. Our citrus CBD oils contain a third ingredient for flavor — therapeutic-grade orange essential oil, cold-pressed from the peel. Our CBD oils do not contain sugars, dyes or artificial ingredients.
We use a proprietary process that allows us to isolate the CBD from the hemp extract, leaving the THC behind. Our THC-free CBD oils are over 99% pure and contain little-to-no residual hemp flavor or aroma, so they’re virtually tasteless and odorless.
Can I take C4 Healthlabs™ CBD Oil with prescription medications?
What does “Liposomal” mean?
Click here to learn more about Liposomal encapsulation technology and C4 Healthlabs™ Liposomal Vitamin C and Liposomal Vitamin B-Complex.
How do Liposomal Vitamins differ from other vitamins and supplements?
Click here to learn more about Liposomal encapsulation technology and C4 Healthlabs™ Liposomal Vitamin C and Liposomal Vitamin B-Complex.
In what states is tax charged?
Orders shipping to addresses in the state of South Carolina will be charged 6% sales tax. All other states are tax-free.
International orders are assessed taxes and duties, which are calculated at checkout based on the shipping address.
Does C4 Healthlabs™ ship to all 50 US States?
Does C4 Healthlabs™ ship internationally?
As other countries are added, we will update our Shipping & Returns page.
What shipping methods do you offer?
We ship all orders via First Class Mail, which on average is delivered in 3-5 days (Mon-Sat), and orders over $75 ship free of charge. Orders under $75 ship via First Class Mail for a flat rate of $5.00. We also offer an upgrade to Priority Mail (2-3 Days) and Priority Mail Express (1-2 Days), if needed.
International orders are shipped via DHL Worldwide Express and exclude applicable duties and taxes.
For more information, visit our Shipping & Returns page.
Can I modify my order after it has been placed?
Can I return a C4 Healthlabs™ product?
My order tracking shows that my order was delivered by USPS, but it is not in my mailbox. What should I do?
My order tracking has stopped updating. What should I do?
My order arrived damaged. What should I do?
Do you offer auto-shipment of my C4 Healthlabs™ CBD Oil orders?
I’m having trouble logging into my C4 Healthlabs™ account? What should I do?
Why can I not checkout as a guest? Why do I have to create an account to purchase from C4 Healthlabs™?
We require an account for several reasons:
– It allows us to provide you with more detailed tracking of your order while in transit.
– It provides a way for you to quickly review past orders and reorder from your order history.
– It provides a faster checkout experience by allowing you to setup your billing and shipping address, which you can change at any time in the Addresses section of your account.
– It allows you to leave product reviews. Reviews can only be left by verified customers who are logged into their account and only for products they have purchased. This eliminates the possibility of fake reviews.
You can manage all aspects of your account, change your email address, change your password, and much more in your My Account page.
Does C4 Healthlabs share my personal information or sell it to other companies for marketing-related purposes?
Is your website secure?
We take data security very seriously, and would never expose our visitors or ourselves to such a violation. We use the latest industry standard security technology for data encryption called SSL (Secure Socket Layer). This is the same level of technology used by banks and government agencies of all sizes, including local, regional, national and international entities in over 120 countries.
Secure Socket Layer (SSL) is a standard security technology for establishing an encrypted link between a server and a client—typically a web server (website) and a browser. SSL allows sensitive information such as credit card numbers, social security numbers, and login credentials to be transmitted securely.
You are actually safer shopping on our site than you would be giving your credit card to a waitress in a restaurant, as that person can write down your credit card information when they leave your table to process your payment. On our site, we have no way of seeing your credit card number or your CVV security code, as this information is encrypted using an SSL certificate as explained above.
We value you as a customer and want you to feel 100% safe when shopping with us.
Where can I find a coupon for C4 Healthlabs™ CBD Oil?
Does C4 Healthlabs™ offer discounts for military and veterans?
Yes. Active Military, Veterans & their Dependents receive a 20% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
Does C4 Healthlabs™ offer discounts for first responders?
Yes. Active and retired first responders, including police, fire and EMT receive a 20% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
Does C4 Healthlabs™ offer discounts for teachers?
Yes. Active and retired teachers, including pre-K, K-12 and higher education receive a 20% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
Does C4 Healthlabs™ offer discounts for students?
Yes. Actively enrolled students age 18 and older receive a 20% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
Does C4 Healthlabs™ offer discounts for nurses and medical personnel?
Yes. Active and retired nurses and medical personnel, including pharmacists and pharmacy staff, receive a 20% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
Does C4 Healthlabs™ offer discounts for senior citizens?
Yes. Senior citizens age 55 and over receive a 10% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
Does C4 Healthlabs™ offer discounts for the disabled, low income and unemployed?
Yes. The disabled, low income and unemployed receive a 10% discount on every order. Click here to learn more about our Savings Programs, and to complete a short application for verification.
Note: C4 Healthlabs does not make opinion-based determinations regarding who is disadvantaged and who is not. In order to verify for this program, you must be in possession of a qualifying document of proof.
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
What other discounts does C4 Healthlabs™ offer?
We offer a 10% discount on every order to active & retired:
– Commercial Drivers with a CDL
– Non-Profit (owners, employees, & volunteers)
– Union Members
Subscribe to auto-delivery and save 5% on every shipment, even for savings program members! Learn More
