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Ingredient group: DHA, boron and vanadium

Vanadyl Sulfate, Boron Citrate and DHA in Reviralis: Limits Worth Checking

Quick answer

Vanadyl sulfate is the seventeenth of 18 names in the Reviralis blend, so the label order lets it hold up to 38.88 mg. About 31% of vanadyl sulfate is vanadium, and the adult upper limit for vanadium is 1.8 mg a day. The label does not say it reaches that. Boron (15th) and DHA (16th) share the same unprinted blend.

Written by the Goreviralis label deskUpdated

The three names01

What are boron, DHA and vanadyl sulfate doing in Reviralis?

They are three of the last four names in the 661 mg blend: boron citrate (15th), DHA (16th) and vanadyl sulfate (17th). Each is a trace nutrient or fat with no printed amount.

Blend members are listed from most to least by weight (21 CFR 101.36), so late names have the smallest ceilings. They are still not tiny. Divide 661 mg by 15, 16 or 17 and you get the most each could hold.

Ceiling from the label order against a reference amount
NamePlaceAt mostReference
Boron (citrate)1544.07 mgUpper limit 20 mg of boron a day
DHA1641.31 mgAbout 250 mg a day of EPA plus DHA suggested
Vanadyl sulfate1738.88 mgUpper limit 1.8 mg of vanadium a day

These are ceilings from arithmetic. The real amounts are not printed. See the proprietary blend page for all 18.

The flag02

Is vanadyl sulfate in Reviralis above the upper limit?

It could be, and the label does not say. Vanadium has an adult upper limit of 1.8 mg a day, and no dietary need has been set (National Academies, trace-element DRIs).

The worked sum: about 31% of vanadyl sulfate is vanadium. At the 38.88 mg ceiling, that is about 12 mg of vanadium, more than six times the limit. If the real amount is a tenth of the ceiling, it is about 1.2 mg, under the limit. Nothing printed tells you which.

Small diabetes studies gave 50 to 150 mg of vanadyl sulfate and often caused stomach upset. People on diabetes medicine should ask before buying, since vanadium has been studied for blood sugar.

What to ask the seller

"What is the milligram amount of vanadyl sulfate per serving, and of vanadium?" If no one answers, treat the number as unknown.

Boron03

How much boron is in a boron citrate supplement?

Less than the citrate weight. Boron citrate is only partly boron, so the 44.07 mg ceiling overstates the boron it holds.

The adult upper limit for boron is 20 mg a day (National Academies, trace-element DRIs). Studies of bone and hormone effects used 3 to 10 mg. The label does not print the boron share, and other multivitamins add boron too, so ask for the figure.

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DHA omega-304

Does Reviralis have enough DHA to count as an omega-3 supplement?

Probably not by the label's order. The Dietary Guidelines suggest about 250 mg a day of EPA plus DHA, and Reviralis can hold at most 41.31 mg of DHA (NIH ODS, Omega-3 Fatty Acids).

High omega-3 doses may prolong bleeding. The label does not say whether the DHA comes from fish or algae, which matters for people with a seafood allergy, because no allergen statement is printed. The bars compare ceilings with studied doses.

  • Bacopa extract

    At most 44% of the low study amount
    Most a 2-capsule serving can hold (label order)132.2 mg
    About 300 mg a day for 12 weeks in memory trials300 mg

    The label prints no amount for this name; 132.2 mg is the ceiling its place in the list allows. (StatPearls, Bacopa monnieri)

  • Phosphatidylserine

    At most 37% of the low study amount
    Most a 2-capsule serving can hold (label order)36.7 mg
    100 to 200 mg a day is typical100 mg

    The label prints no amount for this name; 36.7 mg is the ceiling its place in the list allows. (Cleveland Clinic, Phosphatidylserine)

  • DHA

    At most 17% of the low study amount
    Most a 2-capsule serving can hold (label order)41.3 mg
    About 250 mg a day of EPA plus DHA in the Dietary Guidelines250 mg

    The label prints no amount for this name; 41.3 mg is the ceiling its place in the list allows. (NIH ODS, Omega-3 Fatty Acids)

  • Grape seed extract

    At most 66% of the low study amount
    Most a 2-capsule serving can hold (label order)66.1 mg
    100 to 300 mg a day in studies100-300 mg

    The label prints no amount for this name; 66.1 mg is the ceiling its place in the list allows. (NCCIH, Grape Seed Extract)

  • Olive leaf

    At most 11% of the low study amount
    Most a 2-capsule serving can hold (label order)55.1 mg
    500 to 1,000 mg a day in blood pressure trials500-1,000 mg

    The label prints no amount for this name; 55.1 mg is the ceiling its place in the list allows. (MSK About Herbs, Olive Leaf)

  • Inositol

    At most 6% of the low study amount
    Most a 2-capsule serving can hold (label order)110.2 mg
    About 2,000 mg twice a day in polycystic ovary studies2,000 mg

    The label prints no amount for this name; 110.2 mg is the ceiling its place in the list allows. (Carlomagno 2011, Inositol Safety (Eur Rev Med Pharmacol Sci))

Slate bars: the most one daily serving can hold of that name, worked out from the label order (the real amount is not printed). Orange bars: the daily amount used in the study or guideline we found. A studied dose says what was tested, not what works for you, and no study tested Reviralis.

Care that has evidence05

Do boron, DHA or vanadium help with herpes outbreaks?

No source we found says so, and a Cochrane review found no evidence that lysine or one other supplement prevents cold sores (Chi 2015, Cochrane: Preventing Cold Sores).

Herpes has no cure. 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.

Boron (citrate) in Reviralis: what the label shows, next to research. Sources: (National Academies, trace-element DRIs)
Name on the labelBoron (Citrate)
What it isA trace element with no set daily need
Place on the label15 of 18 in the 661 mg blend, most to least by weight
Amount per 2 capsulesnot printed; the label order caps it at 44.07 mg of the 661 mg blend
Amount used in researchThe adult upper limit is 20 mg of boron a day; studies of bone and hormone effects used 3 to 10 mg
Strength of evidenceNo outbreak data
Main cautionBoron citrate is only partly boron, so the blend ceiling for this name overstates the boron it holds.
DHA in Reviralis: what the label shows, next to research. Sources: (NIH ODS, Omega-3 Fatty Acids)
Name on the labelDHA (Docosahexaenoic Acid)
What it isAn omega-3 fat found in fish and algae
Place on the label16 of 18 in the 661 mg blend, most to least by weight
Amount per 2 capsulesnot printed; the label order caps it at 41.31 mg of the 661 mg blend
Amount used in researchThe Dietary Guidelines point to about 250 mg a day of EPA plus DHA; omega-3 products often give 250 to 1,000 mg
Strength of evidenceWell studied for other uses; no outbreak data
Main cautionHigh doses can prolong bleeding. The label does not say whether the DHA comes from fish or algae.
Vanadyl sulfate in Reviralis: what the label shows, next to research. Sources: (National Academies, trace-element DRIs)
Name on the labelVanadyl Sulfate
What it isA form of the trace metal vanadium
Place on the label17 of 18 in the 661 mg blend, most to least by weight
Amount per 2 capsulesnot printed; the label order caps it at 38.88 mg of the 661 mg blend
Amount used in researchSmall diabetes studies used 50 to 150 mg of vanadyl sulfate and often caused stomach upset; the adult upper limit is 1.8 mg of vanadium a day
Strength of evidenceSmall diabetes studies only; no outbreak data
Main cautionNo dietary need is known. The label order allows up to about 39 mg of vanadyl sulfate, which could hold more vanadium than the 1.8 mg upper limit; the real amount is not printed.

FAQ06

Questions about DHA, boron and vanadium in Reviralis

How much vanadyl sulfate is in Reviralis?

The label does not print it. Vanadyl sulfate is seventeenth of 18 names, so by label order it can hold at most 38.88 mg. About 31% is vanadium, against an adult upper limit of 1.8 mg a day.

Is there DHA in Reviralis capsules?

Yes, DHA is sixteenth of 18 blend names, at most 41.31 mg by label order. The label does not say whether it comes from fish or algae. The suggested intake is about 250 mg of EPA plus DHA.

What is the upper limit for boron?

The adult upper limit is 20 mg of boron a day. Reviralis lists boron citrate fifteenth, at most 44.07 mg of citrate, and boron is only part of that weight. No amount is printed.

Does vanadium help with blood sugar?

Small studies gave 50 to 150 mg of vanadyl sulfate and often caused stomach upset. Results are not settled. Anyone on diabetes medicine should ask a pharmacist before taking vanadium.

Can DHA thin the blood?

High doses of omega-3 may prolong bleeding. Reviralis can hold at most 41.31 mg of DHA, far below fish oil doses, but people on blood thinners should still ask their pharmacist.

Why does this site flag vanadyl sulfate?

Because arithmetic from the label order lets it hold more vanadium than the adult upper limit. The label does not say that it does. The flag asks for the real amount, not a verdict.

Who wrote this07

Written and reviewed by

Written byThe Goreviralis label deskGoreviralis, U.S. stocking partner for Reviralis

Pages built from the label, the sales page and linked NIH, CDC, FDA, FTC, Mayo Clinic and peer-reviewed sources.

Medically reviewed byDr. Aimee Duffy, MD, PhysicianRole: Medical reviewerReview date: October 31, 2026

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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