The 661 mg blend
Reviralis Proprietary Blend: What 661 mg Shared by 18 Names Can Hold
The Reviralis proprietary blend is 661 mg per serving of two capsules, shared by 18 named ingredients. The label prints no single amounts. Because names must run from most to least by weight, the first is at least 36.7 mg and the last can hold at most 36.8 mg. These are ceilings, not doses.
Written by the Reviralis label deskUpdated
Definition01
What is the Reviralis proprietary blend?
The Reviralis proprietary blend is one line on the Supplement Facts panel: 661 mg per serving, with 18 names listed under it and no amount beside any of them. The Daily Value is not established.
A proprietary blend is a mix whose recipe the maker keeps private. The law asks for the total and the names in order, nothing more (21 CFR 101.36, Supplement Facts Panel). The names run: DMAE bitartrate, L-glutamine, glutamic acid, green tea leaf extract, Bacopa monnieri extract, inositol, N-acetyl L-tyrosine, bilberry fruit extract, GABA, grape seed extract, grapefruit seed extract, olive leaf powder, cinnamon bark extract, licorice root extract, boron (citrate), DHA, vanadyl sulfate and phosphatidylserine.
The arithmetic02
How much of each name is in the 661 mg blend?
We cannot know exactly, but the label order sets a ceiling for each name. The n-th name can hold at most 661 divided by n, because every name above it weighs at least as much.
Q: What is the floor? A: Only the first name has one. It must be at least 661 divided by 18, which is 36.7 mg. Every other name could be very small.
Worked example: if all 18 names weighed the same, each would hold 36.7 mg. Put DMAE at 200 mg and the last 17 share 461 mg. The bar chart shows where each name can fall.
661 mgone proprietary blend per serving (2 capsules), shared by 18 names; the 22 vitamin and mineral lines print their own amounts
Proprietary Blend 661 mg · 18 names · no single amounts- 1. DMAE bitartrate36.7 to 661 mg
- 2. L-glutamineup to 330.5 mg
- 3. Glutamic acidup to 220.4 mg
- 4. Green tea leaf extractup to 165.3 mg
- 5. Bacopa monnieri extractup to 132.2 mg
- 6. Inositolup to 110.2 mg
- 7. N-acetyl L-tyrosineup to 94.5 mg
- 8. Bilberry fruit extractup to 82.7 mg
- 9. GABAup to 73.5 mg
- 10. Grape seed extractup to 66.1 mg
- 11. Grapefruit seed extractup to 60.1 mg
- 12. Olive leaf powderup to 55.1 mg
- 13. Cinnamon bark extractup to 50.9 mg
- 14. Licorice root extractup to 47.3 mg
- 15. Boron (citrate)up to 44.1 mg
- 16. DHAup to 41.4 mg
- 17. Vanadyl sulfateup to 38.9 mg
- 18. Phosphatidylserineup to 36.8 mg
Bars are drawn on a 0 to 661 mg scale. Each bar shows the widest range the label order allows for that name (21 CFR 101.36, Supplement Facts Panel); the real split is not printed. The first name is at least 36.7 mg; the n-th is at most 661 divided by n.
Name by name03
What can each blend name hold, and what did studies use?
Only the first few names can reach the amounts most studies used. The table gives each label ceiling; the chart after it sets four names beside the amounts studied.
| Place | Name | Label ceiling per serving |
|---|---|---|
| 1 | DMAE bitartrate | at least 36.7 mg |
| 2 | L-glutamine | at most 330.5 mg |
| 3 | Glutamic acid | at most 220.4 mg |
| 4 | Green tea leaf extract | at most 165.3 mg |
| 5 | Bacopa monnieri extract | at most 132.2 mg |
| 6 | Inositol | at most 110.2 mg |
| 7 | N-acetyl L-tyrosine | at most 94.5 mg |
| 8 | Bilberry fruit extract | at most 82.7 mg |
| 9 | GABA | at most 73.5 mg |
| 10 | Grape seed extract | at most 66.1 mg |
| 11 | Grapefruit seed extract | at most 60.1 mg |
| 12 | Olive leaf powder | at most 55.1 mg |
| 13 | Cinnamon bark extract | at most 50.9 mg |
| 14 | Licorice root extract | at most 47.3 mg |
| 15 | Boron (citrate) | at most 44.1 mg |
| 16 | DHA | at most 41.4 mg |
| 17 | Vanadyl sulfate | at most 38.9 mg |
| 18 | Phosphatidylserine | at most 36.8 mg |
A studied amount says what was tested, not what works for you, and no study tested Reviralis. Elemental amounts of boron and vanadium cannot be compared with their upper limits, because the label gives the compounds, not the elements.
Against the research04
Is the 661 mg blend enough to match the studies?
For four names we can compare, it cannot match the amounts studied, even if the name took the whole blend. We say what the ceiling is and what the study used, not whether it is enough.
Bacopa is capped at 132.2 mg, and one trial used 300 mg a day (Calabrese 2008, Bacopa in Older Adults (J Altern Complement Med)). Phosphatidylserine is capped at 36.8 mg against a usual 100 to 200 mg (Cleveland Clinic, Phosphatidylserine).
Label vs studies
Reviralis: from $49 a bottle60 capsules a bottle · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsThe hidden part05
Why do proprietary blends make supplements hard to judge?
A blend hides the one number a reader needs: how much of each name is inside. Without it you cannot compare a product with a study, a limit or a medicine warning.
No dose to compare
Green tea extract is capped at 165.3 mg, but its EGCG share is not printed. The 800 mg of EGCG linked to raised liver enzymes (MSK About Herbs, Green Tea) cannot be reached from the label, yet liver injury is not predictable by dose (NCCIH, Green Tea).
No strength given
An extract can be weak or concentrated. The label does not state a ratio or a standard for bacopa, licorice or grape seed.
No limit check
Licorice is capped at 47.3 mg of extract, but the glycyrrhizin share is unknown (NCCIH, Licorice Root). Cinnamon is printed as cassia, and its coumarin share is unknown (NCCIH, Cinnamon).
Claims06
Does the Reviralis blend work for outbreaks?
No source we found shows that. The sales page says the blend can "quiet the internal signal your body sends before an outbreak", and the label makes no such claim.
Herpes has no cure, and prescription antivirals are the proven care (CDC, About Genital Herpes). A supplement represented for a disease is a drug in FDA's eyes (FDA, Questions and Answers on Dietary Supplements). Keep any prescribed antiviral, and see the benefits page for the claim-by-claim check.
What to ask07
What should you ask before buying a blend supplement?
Ask for the amount of each name, the extract strength and a third-party test. If the seller cannot give them, you are buying on trust.
- Does the seller list a lot number and a certificate of analysis? Ours are references, not lab proof: R-26/IR-5592 and R-5592-26-IR.
- Is the form of each mineral given as an element or a compound?
- Do any names interact with your medicines? The label names antidepressants, blood thinners and nerve or heart medicines.
Reviralis: from $49 a bottle60 capsules a bottle · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsFAQ08
Questions about the 661 mg blend
What is a proprietary blend in a supplement?
A proprietary blend is a group of ingredients listed under one total weight, without single amounts. Names must be ordered from most to least by weight (21 CFR 101.36, Supplement Facts Panel). It keeps the recipe private, but it stops a reader from comparing each ingredient with a study.
How many ingredients are in the Reviralis blend?
The Reviralis blend holds 18 named ingredients that share 661 mg per serving of two capsules. They range from DMAE bitartrate, listed first, to phosphatidylserine from sunflower seed, listed last. Together with 22 vitamin and mineral lines, the label prints 40 names.
Which blend ingredient is the biggest in Reviralis?
DMAE bitartrate, because it is listed first and must weigh the most. It is at least 36.7 mg of the 661 mg, and it could be as much as 661 mg. The label does not say which, so the real amount is unknown.
Can the Reviralis blend contain a clinical dose of bacopa?
Not the 300 mg tested in one trial (Calabrese 2008, Bacopa in Older Adults (J Altern Complement Med)). Bacopa is fifth, so it can hold at most 132.2 mg of extract per serving. The label gives no extract strength, so what that amount does is not known.
Is a proprietary blend illegal?
No. Federal rules allow it if the total weight and the names in descending order appear (21 CFR 101.36, Supplement Facts Panel). It is legal but opaque. Legal does not mean tested or effective, and FDA does not approve supplements before they are sold.
How do you add up the blend per capsule?
Divide by two. The 661 mg serving is about 330.5 mg of blend per capsule. The vitamin and mineral lines are separate, and the label prints their amounts for two capsules, so halve those as well for one.
Who wrote this09
Written and reviewed by
Pages built from the label, the order page and linked NIH, 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 USA Authorized Reviralis Retailer. 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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