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December 15, 2021 By admin Off

CBD oil isn’t the same as hemp oil or hemp seed oil.

Here we cover 4 common mistakes when buying CBD oil online.

You can use a simple rule when searching for pure CBD oil for sale:

Now let’s get back to remote shopping. Here’s where to buy CBD oil online.

Wondering where to buy CBD oil online? Below you’ll find the list of important considerations that can make or break your purchase decision.

How to Buy Pure CBD Oil Online?

CBD Pure provides some of the finest quality products on the market. The brand specializes in traditional forms of CBD, including oils, capsules, and creams. Recently, CBD Pure has released the most potent version of its CBD oil, with 1000 mg of full-spectrum CBD per bottle. While it’s not the most potent CBD product out there, the formula works effectively especially if you take CBD for depression and anxiety .

Similar to Royal CBD, Gold Bee uses organically-grown hemp from Colorado farms to ensure high purity and decent CBD content of the source material. These plants are gently extracted with pressurized CO2 that pulls the beneficial compounds from hemp without using additional heat or solvents. This helps the company preserve the original chemical profile of its hemp strains.

If you know reputable CBD stores near you , chances are they will have high-quality pure CBD oil for sale. Cannabis dispensaries are the safest option as of now, since they need to stay compliant with state regulations regarding the production and sales of cannabis products. If you’re up for some local shopping around your neighborhood, you can check one of the dedicated mobile apps that compare different stores and dispensaries according to buyers’ reviews.

Aren’t we too skeptical?

Never fall into the trap of buying CBD on the cheap.

Finding high-quality pure CBD oil is easy and safe if you know where to look for it. But on the other hand, not all CBD oils for sale are equal; some of them may contain significantly less CBD than advertised, while others may be contaminated with pesticides or heavy metals. That’s why we underline the importance of research when shopping for CBD.

Finding a trustworthy online supplier is actually easy. There are several factors that can help you distinguish between premium brands and suspicious vendors.

While we’re discussing customer experience, let’s leave a word on websites and their functionality. Site layout and design are vital to making a purchase. Effective layout should have clear search options on top of neatly listed categories. The simpler the checkout page, and the less fields to fill, the better.

CBD has been mentioned in the scientific literature as a potential therapeutic agent for many health concerns, some of which are known as painful diseases. People use CBD oil to alleviate pain, anxiety, insomnia, inflammation, seizures, psychotic behaviors, and more.

Looking for a Miracle Cure.

No certificates = no trust.

Needless to say, your CBD oil should be packaged discreetly and delivered in a timely manner. Although free or discounted shipping is still rare among CBD companies, most of the time, they deliver their products within 2–3 days, providing an order confirmation.

The first reason why we prefer online stores over local retailers is the prices. When you run a physical storefront, there are certain operational costs you need to cover, so if you want to remain on the surface, the prices of your products need to cover these costs. With online stores, this isn’t a problem because most tasks are performed remotely. This, in turn, gives online retailers the opportunity to offer better prices on their products aside from discounts, seasonal deals, bulk pricing, and reward programs.

Everybody claims to sell “the best pure CBD oils”, but only a few companies can actually prove their claims with legitimate evidence.

And still, most CBD oil producers advertise their products in such a way. However, when you ask them about third-party lab reports, they may not be as willing to share them as they are about selling people fake products.

However, this doesn’t mean CBD is an overnight solution to every illness out there. CBD is a complex compound with over 65 identified molecular targets. It’s totally understandable from a scientific standpoint why people often choose it as an alternative to conventional medications — but CBD isn’t a magical pill.

Companies that Educate About CBD Oil.

It won’t mend broken bones.

The Gold Bee CBD oil is available in one concentration. At 1200 mg of CBD per bottle, this product carries 40 mg of full-spectrum CBD in every milliliter. You can choose from two flavor options: natural and kiwi. The latter is sweetened with organic honey from Brazillian rainforests, adding valuable nutrients to the formula.

CBD oil is extracted from the plant’s flowers using a solvent such as pressurized CO2 or high-proof alcohol. It is rich in cannabinoids, terpenes, flavonoids, and other potentially therapeutic ingredients.

If you’re looking for a risk-free way to try out CBDPure’s products, the guys have a nice 90-day return policy; you can return the product for a full refund within 90 days if you aren’t satisfied with your results.

About Royal CBD:

About CBD Pure:

When looking for pure CBD oil for sale, you may be tempted to purchase from large consumer marketplaces like Amazon or Walmart rather than from the manufacturers. However, these places don’t offer real CBD oil. Instead, they sell hemp seed oils that are often mislabeled, using the misleading term “hemp oil.” Such products usually have ridiculously large numbers of milligrams on the bottle, e.g. 10,000 mg or 15,000 mg. This refers to the sum of all ingredients in the product, not the potency of CBD. Hemp seed oil is devoid of cannabinoids.

Another aspect, which has not been thoroughly looked at, to our knowledge, is that several cytochrome isozymes are not only expressed in the liver but also in the brain. It might be interesting to research organ-specific differences in the level of CBD inhibition of various isozymes. Apart from altering the bioavailability in the overall plasma of the patient, this interaction might alter therapeutic outcomes on another level. Dopamine and tyramine are metabolized by CYP2D6, and neurosteroid metabolism also occurs via the isozymes of the CYP3A subgroup. 50,51 Studying CBD interaction with neurovascular cytochrome P450 enzymes might also offer new mechanisms of action. It could be possible that CBD-mediated CYP2D6 inhibition increases dopamine levels in the brain, which could help to explain the positive CBD effects in addiction/withdrawal scenarios and might support its 5HT (=serotonin) elevating effect in depression.

Fifteen neuroleptic-free patients with Huntington’s disease were treated with either placebo or oral CBD (10 mg/kg b.w. per day) for 6 weeks in a double-blind, randomized, crossover study design. Using various safety outcome variables, clinical tests, and the cannabis side effect inventory, it was shown that there were no differences between the placebo group and the CBD group in the observed side effects. 6.

Truly chronic studies with CBD are still scarce. One can often argue that what the studies call “chronic” CBD administration only differs to acute treatment, because of repeated administration of CBD. Nonetheless, we also included these studies with repeated CBD treatment, because we think that compared to a one-time dose of CBD, repeated CBD regimens add value and knowledge to the field and therefore should be mentioned here.

Mice treated with 60 mg/kg b.w. CBD i.p. for 12 weeks (three times per week) did not show ataxia, kyphosis, generalized tremor, swaying gait, tail stiffness, changes in vocalization behavior or open-field physiological activity (urination, defecation). 1.

Some studies indicate that under certain circumstances, CBD acute anxiolytic effects in rats were reversed after repeated 14-day administration of CBD. 2 However, this finding might depend on the used animal model of anxiety or depression. This is supported by a study, where CBD was administered in an acute and “chronic” (2 weeks) regimen, which measured anxiolytic/antidepressant effects, using behavioral and operative models (OBX=olfactory bulbectomy as model for depression). 18 The only observed side effects were reduced sucrose preference, reduced food consumption and body weight in the nonoperated animals treated with CBD (50 mg/kg). Nonetheless, the behavioral tests (for OBX-induced hyperactivity and anhedonia related to depression and open field test for anxiety) in the CBD-treated OBX animals showed an improved emotional response. Using microdialysis, the researchers could also show elevated 5-HT and glutamate levels in the prefrontal cortex of OBX animals only. This area was previously described to be involved in maladaptive behavioral regulation in depressed patients and is a feature of the OBX animal model of depression. The fact that serotonin levels were only elevated in the OBX mice is similar to CBD differential action under physiological and pathological conditions.


Another publication studied the difference of acute and chronic administration of two doses of CBD in nonstressed mice on anxiety. Already an acute i.p. administration of 3 mg/kg was anxiolytic to a degree comparable to 20 mg/kg imipramine (an selective serotonin reuptake inhibitor [SSRI] commonly prescribed for anxiety and depression). Fifteen days of repeated i.p. administration of 3 mg/kg CBD also increased cell proliferation and neurogenesis (using three different markers) in the subventricular zone and the hippocampal dentate gyrus. Interestingly, the repeated administration of 30 mg/kg also led to anxiolytic effects. However, the higher dose caused a decrease in neurogenesis and cell proliferation, indicating dissociation of behavioral and proliferative effects of chronic CBD treatment. The study does not mention adverse effects. 19.

Another approach was chosen by Aviello et al. 43 They used the carcinogen azoxymethane to induce colon cancer in mice. Treatment occurred using IP injections of 1 or 5 mg/kg CBD, three times a week for 3 weeks (including 1 week before carcinogen administration). After 3 months, the number of aberrant crypt foci, polyps, and tumors was analyzed. The high CBD concentration led to a significant decrease in polyps and a return to near-normal levels of phosphorylated Akt (elevation caused by the carcinogen). 42 No adverse effects were mentioned in the described study. 43.

There only seems to exist one study that could not show an adverse CBD effect on embryogenesis. An in vitro study could show that the development of two-cell embryos was not arrested at CBD concentrations of 6.4, 32, and 160 nM. 35.

CBD, which is nonhedonic, can reduce heroin-seeking behavior after, for example, cue-induced reinstatement. This was shown in an animal heroin self-administration study, where mice received 5 mg/kg CBD i.p. injections. The observed effect lasted for 2 weeks after CBD administration and could normalize the changes seen after stimulus cue-induced heroin seeking (expression of AMPA, GluR1, and CB1R). In addition, the described study was able to replicate previous findings showing no CBD side effects on locomotor behavior. 23.

Clinical chronic (lasting longer than a couple of weeks) studies in humans are crucial here but were mostly still lacking at the time of writing this review. They hopefully will shed light on the inconsistencies observerd in animal studies. Chronic studies in humans may, for instance, help to test whether, for example, an anxiolytic effect always prevails after chronic CBD treatment or whether this was an artifact of using different animal models of anxiety or depression. 2,18.

After inducing arthritis in rats using Freund’s adjuvant, various CBD doses (0.6, 3.1, 6.2, or 62.3 mg/day) were applied daily in a gel for transdermal administration for 4 days. CBD reduced joint swelling, immune cell infiltration. thickening of the synovial membrane, and nociceptive sensitization/spontaneous pain in a dose-dependent manner, after four consecutive days of CBD treatment. Proinflammatory biomarkers were also reduced in a dose-dependent manner in the dorsal root ganglia (TNF alpha) and spinal cord (CGRP, OX42). No side effects were evident and exploratory behavior was not altered (in contrast to Δ9-THC, which caused hypolocomotion). 33.

In conclusion, CBD safety profile is already established in a plethora of ways. However, some knowledge gaps detailed above should be closed by additional clinical trials to have a completely well-tested pharmaceutical compound.

The ex vivo study used the antidiabetic drug and BCRP substrate glyburide. 17 After 2 h of CBD perfusion, the largest difference between the CBD and the placebo placentas ( n =8 each) was observed. CBD inhibition of the BCRP efflux function in the placental cotyledon warrants further research of coadministration of CBD with known BCRP substrates such as nitrofurantoin, cimetidine, and sulfasalazine. In this study, a dose–response curve should be established in male and female subjects (CBD absorption was shown to be higher in women) because the concentrations used here are usually not reached by oral or inhaled CBD administration. Nonetheless, CBD could accumulate in organs physiologically restricted via a blood barrier. 17.

Moreover, the elevated IL-1 beta and TNF alpha levels observed in the transgenic mice could be reduced to WT (wild-type) levels with CBD treatment. Using statistical analysis by analysis of variance, this was shown to be only a trend. This might have been caused by the high variation in the transgenic mouse group, though. Also, CBD increased cholesterol levels in WT mice but not in CBD-treated transgenic mice. This was probably due to already elevated cholesterol in the transgenic mice. The study observed no side effects. 31 and references within.


This led to a reduction in seizure frequency. In this study, 79% of the cohort experienced side effects. The three most common adverse effects were somnolence ( n =41 [25%]), decreased appetite ( n =31 [19%]), and diarrhea ( n =31 [19%]). 72 It has to be pointed out that no control group existed in this study (e.g., placebo or another drug). It is therefore difficult to put the side effect frequency into perspective. Attributing the side effects to CBD is also not straightforward in severely sick patients. Thus, it is not possible to draw reliable conclusions on the causation of the observed side effects in this study.

A similar effect was previously described in anxiety experiments, where CBD proved to be only anxiolytic in subjects where stress had been induced before CBD administration. Elevated glutamate levels have been proposed to be responsible for ketamine’s fast antidepressant function and its dysregulation has been described in OBX mice and depressed patients. Chronic CBD treatment did not elicit behavioral changes in the nonoperated mice. In contrast, CBD was able to alleviate the affected functionality of 5HT1A receptors in limbic brain areas of OBX mice. 18 and references therein.

The largest CBD study conducted thus far was an open-label study with Epidiolex in 261 patients (mainly children, the average age of the participants was 11) suffering from severe epilepsy, who could not be treated sufficiently with standard medication. After 3 months of treatment, where patients received CBD together with their regular medication, a median reduction of seizure frequency of 45% was observed. Ten percent of the patients reported side effects (tiredness, diarrhea, and exhaustion). 2.

The following example and calculations will demonstrate this. In vitro studies have shown that CBD inhibits the ABC transporters P-gp (P glycoprotein also referred to as ATP-binding cassette subfamily B member 1= ABCB1 ; 3–100 μM CBD) and Bcrp (Breast Cancer Resistance Protein; also referred to as ABCG2 =ATP-binding cassette subfamily G member 2). 7 After 3 days, the P-gp protein expression was altered in leukemia cells. This can have several implications because various anticancer drugs also bind to these membrane-bound, energy-dependent efflux transporters. 1 The used CBD concentrations are supraphysiological, however, 3 μM CBD approximately corresponds to plasma concentrations of 1 μg/ml. On the contrary, a 700 mg CBD oral dose reached a plasma level of 10 ng/ml. 6 This means that to reach a 1 μg/ml plasma concentration, one would need to administer considerably higher doses of oral CBD. The highest ever applied CBD dose was 1500 mg. 1 Consequently, more research is warranted, where the CBD effect on ABC transporters is analyzed using CBD concentrations of, for example, 0.03–0.06 μM. The rationale behind suggesting these concentrations is that studies summarized by Bih et al. on CBD effect on ABCC1 and ABCG2 in SF9 human cells showed that a CBD concentration of 0.08 μM elicited the first effect. 7.

Various studies on CBD and psychosis have been conducted. 20 For instance, an animal model of psychosis can be created in mice by using the NMDAR antagonist MK-801. The behavioral changes (tested with the prepulse inhibition [PPI] test) were concomitant with decreased mRNA expression of the NMDAR GluN1 subunit gene (GRN1) in the hippocampus, decreased parvalbumin expression (=a calcium-binding protein expressed in a subclass of GABAergic interneurons), and higher FosB/ΔFosB expression (=markers for neuronal activity). After 6 days of MK-801 treatment, various CBD doses were injected intraperitoneally (15, 30, 60 mg/kg) for 22 days. The two higher CBD doses had beneficial effects comparable to the atypical antipsychotic drug clozapine and also attenuated the MK-801 effects on the three markers mentioned above. The publication did not record any side effects. 21.

Introduction: This literature survey aims to extend the comprehensive survey performed by Bergamaschi et al. in 2011 on cannabidiol (CBD) safety and side effects. Apart from updating the literature, this article focuses on clinical studies and CBD potential interactions with other drugs.


EIHA paid nova-Institute for the review. F.G. is Executive Director of IACM.

According to our literature survey, there currently are no studies about CBD role in embryogenesis/cell migration in humans, even though cell migration does play a role in embryogenesis and CBD was shown to be able to at least influence migratory behavior in cancer. 1.

CBD was shown to be able to influence migratory behavior in cancer, which is also an important aspect of embryogenesis. 1 For instance, it was recently shown that CBD inhibits Id-1. Helix-loop-helix Id proteins play a role in embryogenesis and normal development via regulation of cell differentiation. High Id1-levels were also found in breast, prostate, brain, and head and neck tumor cells, which were highly aggressive. In contrast, Id1 expression was low in noninvasive tumor cells. Id1 seems to influence the tumor cell phenotype by regulation of invasion, epithelial to mesenchymal transition, angiogenesis, and cell proliferation. 34.

In case of Alzheimer’s disease (AD), studies in mice and rats showed reduced amyloid beta neuroinflammation (linked to reduced interleukin [IL]-6 and microglial activation) after CBD treatment. This led to amelioration of learning effects in a pharmacological model of AD. The chronic study we want to describe in more detail here used a transgenic mouse model of AD, where 2.5-month-old mice were treated with either placebo or daily oral CBD doses of 20 mg/kg for 8 months (mice are relatively old at this point). CBD was able to prevent the development of a social recognition deficit in the AD transgenic mice.

There are various mechanisms underlying neuroprotection, for example, energy metabolism (whose alteration has been implied in several psychiatric disorders) and proper mitochondrial functioning. 24 An early study from 1976 found no side effects and no effect of 0.3–300 μg/mg protein CBD after 1 h of incubation on mitochondrial monoamine oxidase activity in porcine brains. 25 In hypoischemic newborn pigs, CBD elicited a neuroprotective effect, caused no side effects, and even led to beneficial effects on ventilatory, cardiac, and hemodynamic functions. 26.

In addition, the FAAH substrates palmitoylethanolamide and linoleoyl-ethanolamide (both lipid mediators) were also elevated in the CBD group. CBD showed less serum prolactin increase (predictor of galactorrhoea and sexual dysfunction), fewer extrapyramidal symptoms measured with the Extrapyramidal Symptom Scale, and less weight gain. Moreover, electrocardiograms as well as routine blood parameters were other parameters whose effects were measured but not reported in the study. CBD better safety profile might improve acute compliance and long-term treatment adherence. 67,68.

This review could substantiate and expand the findings of Bergamaschi et al. about CBD favorable safety profile. 1 Nonetheless, various areas of CBD research should be extended. First, more studies researching CBD side effects after real chronic administration need to be conducted. Many so-called chronic administration studies, cited here were only a couple of weeks long. Second, many trials were conducted with a small number of individuals only. To perform a throrough general safety evaluation, more individuals have to be recruited into future clinical trials. Third, several aspects of a toxicological evaluation of a compound such as genotoxicity studies and research evaluating CBD effect on hormones are still scarce. Especially, chronic studies on CBD effect on, for example, genotoxicity and the immune system are still missing. Last, studies that evaluate whether CBD-drug interactions occur in clinical trials have to be performed.