Superfeels is a kava-and-kratom tonic the maker says is designed for calm energy, focus, and winding down. Its ingredients have been discussed in human and clinical literature, but side effects reported with kratom-containing products can include nausea, constipation, dry mouth, dizziness, sweating, sleep changes, and—especially with regular use—dependence.
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Safety summary
- What is in it: Superfeels lists 380 mg noble kava root extract and 75 mg mitragyna (kratom) per serving (half a 2 oz bottle), plus water and citrus. A full bottle is two servings.
- Reported effects to know: Kratom literature describes nausea, constipation, dry mouth, dizziness, sweating, appetite changes, and sleep disturbance. The maker also says its products can be habit-forming.
- Medicines: The maker says not to combine Superfeels with medications. Ask a clinician or pharmacist to check your own prescription and over-the-counter medicines before using it.
- Ask first: Do not use it during pregnancy or nursing, if you have a history of substance use disorder, or if you are under 21. Ask a clinician first if you have an ongoing health condition or surgery planned.
Why might Superfeels cause side effects?
The short answer is that Superfeels combines two active botanicals in one small drink. The maker describes it as a tonic for a clearer, more settled feeling, while its own label warns that kratom leaf can be habit-forming and that the drink can interact with certain medicines.
Kratom contains alkaloids including mitragynine. A 2019 kratom review describes mitragynine and related alkaloids as having agonist affinity at opioid receptors. In everyday terms, that is one reason amount used and frequency matter.
Superfeels is not the same thing as kratom research in general: the research describes kratom exposures and formulations, while Superfeels has its own stated amounts and directions. The maker says to keep intake to no more than one-half bottle at one time and no more than one bottle in 24 hours.
What does each main ingredient add to the safety picture?
Kratom: 75 mg mitragyna per serving (half a 2 oz bottle)
Kratom is the ingredient that drives most of the product-specific cautions. A 2016 literature review of 40 published human studies reported that adverse reactions and fatalities described in Western case reports often involved kratom alongside other substances. That does not make mixing harmless; it is a useful reminder to follow Superfeels’ instruction not to combine it with alcohol or medications.
A 2021 Neurology Clinical Practice report described three people being treated for epilepsy who had seizures associated with kratom use. It does not give a Superfeels-specific rate or establish that this tonic causes seizures, but it is a clear reason for someone with a seizure history to ask a clinician before trying any kratom-containing product.
Human research here does not provide a dose-to-side-effect rate that matches Superfeels’ 75 mg mitragyna per serving (half a 2 oz bottle). The useful next step is simple: compare the bottle in hand with the maker’s stated label amount and follow the printed serving limit.
Kava: 380 mg noble kava root extract per serving (half a 2 oz bottle)
Superfeels lists 380 mg of noble kava root extract per serving (half a 2 oz bottle) and says its kava comes from a single cultivar. The maker does not publish a kavalactone amount on its ingredients page, so that is the number to ask support about if it matters to your decision. Kava and kratom are both active botanicals, which is why this product’s label directs readers not to combine it with alcohol or medications and not to drive or operate machinery after using it.
Water and citrus
Water and citrus are the other listed formula components. The product’s central safety decisions come from the kava and kratom extracts, not from those beverage ingredients.
Which side effects are most relevant?
| Reported with kratom literature | What it can feel like | A practical response |
|---|---|---|
| Nausea, constipation, dry mouth, appetite changes | Stomach discomfort or feeling less interested in food | Do not take more to push through an unpleasant response. Follow the label limit and ask a clinician or pharmacist if it continues. |
| Dizziness, sweating, sleep changes | Feeling off-balance, warm, or having a disrupted night | Avoid driving or machinery after use, as the maker directs. |
| Dependence with regular use | Wanting to keep using it or noticing difficulty when stopping after frequent use | The maker says its products can be habit-forming and says not to use them with a history of substance use disorder. |
| Seizure reports | A serious neurologic event reported in kratom literature | People with epilepsy or a seizure history should ask a clinician before use. |
These are ingredient-class reports, not a list of effects documented for every Superfeels drinker. The 2017 Frontiers in Psychiatry review lists nausea, vomiting, dry mouth, constipation, dizziness, sweating, anxiety, sleep disturbance, and dependence among reported kratom effects; it also notes that clinical studies are limited.
For a wider look at how ingredients can shape a supplement safety decision, see the site’s Lion’s Mane safety guide and Alpha-GPC guide.
What about alcohol, medicines, and driving?
Superfeels says not to consume the tonic with alcohol, not to combine it with medications, and not to drive or operate machinery afterward. That is the clearest rule to follow. Bring the bottle or a photo of its label to a clinician or pharmacist if you use prescription medicines, over-the-counter medicines, or other supplements; they can check the combination against your actual medication list.
The maker’s terms say exact milligram doses are declared on every bottle. If your bottle differs from the 380 mg kava and 75 mg mitragyna figures stated on the site, use the bottle’s label as the immediate reference and ask Superfeels support for clarification.
The FDA oversees federal food and dietary-supplement regulation, and the U.S. Department of Health and Human Services is the federal department that includes the FDA. Superfeels’ own FAQ says its product statements have not been evaluated by the FDA.
Who should skip it or ask a clinician first?
- Pregnancy or nursing: Superfeels says not to use the product.
- Under 21: The maker does not sell it to anyone under 21.
- History of substance use disorder: The maker says not to use it because kratom leaf can be habit-forming.
- Epilepsy or a seizure history: Ask a clinician first because seizure associations appear in kratom literature.
- Medication use, chronic conditions, or planned surgery: Ask a clinician or pharmacist first, rather than guessing about a combination.
How should you start, and when should you stop?
Use the maker’s directions: no more than one-half bottle at one time and no more than one bottle in 24 hours. Do not combine it with alcohol or medications, and do not drive afterward. If a new or bothersome effect appears, stop using it and contact a clinician or pharmacist for guidance; for symptoms that feel urgent, seek urgent medical care.
The maker’s official site is Superfeels.com. It says every lot has a certificate of analysis searchable by the lot number on the bottle, and it lists customer support at info@superfeels.com. That gives you a concrete way to check the bottle you are considering rather than relying on an ad alone.
Before you try Superfeels
- Check that you are 21 or older and that the product is allowed where you live.
- Read the exact bottle label and confirm the serving limit.
- Ask support for the lot certificate of analysis using the lot number on your bottle.
- Ask a clinician or pharmacist about your personal medication list before using it.
- Keep alcohol, driving, and machinery out of the plan after use.
For another example of how product ingredients and safety questions fit together, see FocusMax side effects.
By HealthDataConsortium.org Research Team
This article is for general information purposes only and does not constitute medical advice. Consult your doctor or qualified healthcare provider before making changes to your health routine.
