Ingredient group: herbal leaf and bark extracts
Green Tea Leaf Extract and Licorice Root in Reviralis: What the Herbal Names Mean
Green tea leaf extract is the fourth of 18 names in the Reviralis blend, so by label order it holds at most 165.25 mg. Five herbal names sit in the blend: green tea, bacopa, olive leaf, cinnamon and licorice. No amounts are printed, and NIH's NCCIH links concentrated green tea extracts to liver injury and licorice to higher blood pressure.
Written by the Goreviralis label deskUpdated
The five names01
Which herbal extracts are in the Reviralis blend?
Five of the 18 blend names are plants: green tea leaf extract (4th), bacopa monnieri extract (5th), olive leaf powder (12th), cinnamon bark extract (13th) and licorice root extract (14th).
The label prints no amount for any of them. Blend members are listed from most to least by weight (21 CFR 101.36), so each name has a ceiling: 661 mg divided by its place. The table sets those ceilings beside the doses used in studies.
| Name | Place | At most | Studied |
|---|---|---|---|
| Green tea leaf extract | 4 | 165.25 mg | Varies; no standard |
| Bacopa monnieri extract | 5 | 132.2 mg | About 300 mg a day |
| Olive leaf powder | 12 | 55.08 mg | 500 to 1,000 mg a day |
| Cinnamon bark extract | 13 | 50.85 mg | 1 to 6 g of powder |
| Licorice root extract | 14 | 47.21 mg | No dose shown to help |
The real amounts are not printed. See the proprietary blend page for all 18 ceilings.
Green tea02
Can green tea leaf extract affect the liver?
At high doses, yes. NCCIH says green tea extract supplements have been linked to liver injury, and that caffeine content varies (NCCIH, Green Tea).
The label prints no EGCG or caffeine figure. The sales page calls the product "stimulant-free", and the label cannot confirm that. If you have liver disease, drink alcohol daily or take medicine that stresses the liver, ask a pharmacist before buying.
Bacopa and olive leaf03
Is the bacopa monnieri extract a studied dose?
No. Memory trials gave about 300 mg a day of extract for 12 weeks, and the blend can hold at most 132.2 mg (StatPearls, Bacopa monnieri).
Stomach upset and loose stools are the usual side effects. Olive leaf is the same story: blood pressure trials used 500 to 1,000 mg a day and the ceiling is 55.08 mg (MSK About Herbs, Olive Leaf). It may lower blood pressure and blood sugar a little, so people on those medicines should ask.
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See packsLicorice and cinnamon04
Does licorice root extract raise blood pressure?
It can. The glycyrrhizin in licorice raises blood pressure and lowers potassium, and it interacts with several medicines (NCCIH, Licorice Root).
Memorial Sloan Kettering links regular intake of even moderate amounts of licorice to high blood pressure and low potassium (MSK About Herbs, Licorice). The label does not say whether this extract has the glycyrrhizin removed, and its ceiling is only 47.21 mg. Ask about blood pressure pills, water pills and heart medicine.
Cassia cinnamon carries coumarin, and its blood sugar results are mixed (NCCIH, Cinnamon). Studies used grams of powder, far above 50.85 mg.
"This bottle names licorice root and green tea. I take a blood pressure pill. Should I skip it?"
Care that has evidence05
Do any of these herbs help with herpes outbreaks?
No source we found says so. a Cochrane review found no evidence that lysine or one other supplement prevents cold sores (Chi 2015, Cochrane: Preventing Cold Sores).
Licorice has lab work in cells only. Herpes has no cure, and prescription antivirals are the care with evidence behind it (CDC, STI Treatment Guidelines: Herpes). Keep taking any prescribed medicine, and do not change it without your prescriber. See a clinician for a diagnosis, because other conditions look like herpes. Call 911 for trouble breathing, a seizure, chest pain, swelling of the face or throat, or sudden confusion with severe headache and stiff neck.
| Name on the label | Green Tea (Camellia sinensis) Leaf Extract |
|---|---|
| What it is | A concentrated extract of green tea leaves; may contain caffeine |
| Place on the label | 4 of 18 in the 661 mg blend, most to least by weight |
| Amount per 2 capsules | not printed; the label order caps it at 165.25 mg of the 661 mg blend |
| Amount used in research | Studies vary: brewed tea, or extracts with hundreds of mg of EGCG; no standard dose |
| Strength of evidence | Mixed for other uses; no outbreak data |
| Main caution | NCCIH says concentrated green tea extracts have been linked to liver injury, and extracts can carry caffeine. The label prints no EGCG or caffeine figure, so the sales page's 'stimulant-free' cannot be checked from it. |
| Name on the label | Bacopa monnieri Extract |
|---|---|
| What it is | An Ayurvedic herb, a small creeping water plant |
| Place on the label | 5 of 18 in the 661 mg blend, most to least by weight |
| Amount per 2 capsules | not printed; the label order caps it at 132.2 mg of the 661 mg blend |
| Amount used in research | Memory trials gave about 300 mg a day of extract for 12 weeks |
| Strength of evidence | Small memory trials; no outbreak data |
| Main caution | Stomach upset, nausea and loose stools are the most reported effects. Ask a pharmacist about sedatives, thyroid medicine or medicine that slows the heart. |
| Name on the label | Olive (Olea europaea) Leaf powder |
|---|---|
| What it is | Dried, ground leaves of the olive tree |
| Place on the label | 12 of 18 in the 661 mg blend, most to least by weight |
| Amount per 2 capsules | not printed; the label order caps it at 55.08 mg of the 661 mg blend |
| Amount used in research | Blood pressure trials gave about 500 to 1,000 mg a day of leaf extract |
| Strength of evidence | Small trials for other uses; no outbreak data |
| Main caution | May lower blood pressure and blood sugar a little, so ask a pharmacist about blood pressure or diabetes medicine. |
| Name on the label | Cinnamon (Cinnamomum cassia) Bark Extract |
|---|---|
| What it is | Cassia cinnamon, the common grocery-store type |
| Place on the label | 13 of 18 in the 661 mg blend, most to least by weight |
| Amount per 2 capsules | not printed; the label order caps it at 50.85 mg of the 661 mg blend |
| Amount used in research | Blood sugar studies gave about 1 to 6 g a day of cinnamon powder, with mixed results |
| Strength of evidence | Mixed for blood sugar; no outbreak data |
| Main caution | Cassia is high in coumarin, which can harm the liver of sensitive people at large intakes. The blend ceiling for this name is far below gram doses. |
| Name on the label | Licorice (Glycyrrhiza glabra) Root Extract |
|---|---|
| What it is | A root whose glycyrrhizin raises blood pressure and drains potassium in high amounts |
| Place on the label | 14 of 18 in the 661 mg blend, most to least by weight |
| Amount per 2 capsules | not printed; the label order caps it at 47.21 mg of the 661 mg blend |
| Amount used in research | Safety limits are set for glycyrrhizin; no dose has been shown to prevent outbreaks |
| Strength of evidence | Lab work in cells only against viruses; no human outbreak data |
| Main caution | Glycyrrhizin can raise blood pressure and lower potassium. It interacts with blood pressure medicine, diuretics, heart medicine and blood thinners. The label does not say whether the extract is deglycyrrhizinated. |
FAQ06
Questions about the herbal extracts in Reviralis
How much green tea extract is in Reviralis?
The label does not print it. Green tea leaf extract is fourth of 18 names in the 661 mg blend, so by label order it holds at most 165.25 mg. The EGCG and caffeine amounts are not printed.
Is there licorice in Reviralis and does it matter for blood pressure?
Yes, licorice root extract is fourteenth, at most 47.21 mg. Glycyrrhizin can raise blood pressure and lower potassium. The label does not say whether it is removed, so ask a pharmacist if you take blood pressure medicine.
Does Reviralis have a full dose of bacopa?
No. Memory trials used about 300 mg a day. Bacopa is fifth in the blend, so it can hold at most 132.2 mg. The real amount is not printed.
Is the cinnamon in Reviralis Ceylon or cassia?
The label says Cinnamomum cassia bark extract, which is cassia. Cassia is higher in coumarin than Ceylon. It is thirteenth in the blend, at most 50.85 mg.
Can olive leaf powder lower blood pressure?
It may, a little. Trials used 500 to 1,000 mg a day, and Reviralis can hold at most 55.08 mg. People on blood pressure or diabetes medicine should ask a pharmacist first.
Is Reviralis really stimulant-free with green tea in it?
The label cannot confirm that. Green tea extract can carry caffeine, and no caffeine figure is printed. If you avoid caffeine, ask the seller for the amount before you buy.
Who wrote this07
Written and reviewed by
Pages built from the label, the sales page and linked NIH, CDC, FDA, FTC, Mayo Clinic and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. stocking partner for Reviralis. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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