Ingredient 6 of 11
Bilberry Leaf in Nerve Savior: What the Leaf Powder Adds
Nerve Savior uses bilberry leaf powder, not the fruit extract most studies used. It is sixth in a 600 mg blend, so it weighs at most 100 mg. NCCIH says bilberry has not been clearly shown to help any health condition, and that the leaves may be unsafe in high doses or with long-term use.
Written by the Nerve Savior editorial teamUpdated
The basics
What is bilberry leaf, and why is it in Nerve Savior?
Bilberry (Vaccinium myrtillus) is a small shrub with dark blue berries. The berries are the part most people know. Nerve Savior uses the leaves instead, ground into a powder.
The label lists it as "Bilberry Leaf Powder", with no strength and no amount. The maker does not explain what job the leaf does in the formula. Bilberry is sold mostly as a traditional herb, and the fruit has been studied for vision.
| Label name | Bilberry Leaf Powder |
|---|---|
| What it is | Vaccinium myrtillus · Shrub leaf powder |
| Position in the blend | 6 of 11 (labels list blend ingredients from most to least by weight) |
| Amount per capsule | Not disclosed; at most 100 mg by label math |
| Amount used in research | Fruit extracts up to 160 mg a day; leaves less studied |
| Strength of evidence | Not clearly shown |
| Why it is used | Traditional herb; fruit studied for vision |
| Main caution | NCCIH says leaves may be unsafe in high doses or with long-term use. |
That one word, leaf, shapes almost everything below. Most bilberry research used fruit extract, and the safety advice for leaves is different.
Label math
How much bilberry leaf is in Nerve Savior?
The label gives no number, but the ceiling is 100 mg. Bilberry leaf is sixth in a 600 mg proprietary blend, and blend ingredients must be listed from heaviest to lightest (FDA, Labeling Guide Ch. IV) (FDA, Small Entity Labeling Guide). Five ingredients come before it, so it can weigh no more than 600 divided by 6.
| Item | Nerve Savior | Bilberry research |
|---|---|---|
| Plant part | Leaf powder | Mostly fruit extract |
| Amount per serving | At most 100 mg (label math) | Up to 160 mg a day of fruit extract |
| Strength printed | Not published | Varies by product |
| Length of use studied | Not published | Up to 6 months for fruit extract |
| Shown benefit | No trial of the product | Not clearly shown for any condition |
Use the list below to see bilberry leaf's spot among the eleven. Tap a group to filter it.
- 1Himalayan pink saltHimalayan Pink Salt · in blend
- 2Cinnamon extractCinnamon Extract · in blend
- 3AGP choline (alpha-GPC)AGP Choline · in blend
- 4Bacopa monnieriBacopa Monnieri (20%) · in blend
- 5LuteinLutein (5%) · in blend
- 6Bilberry leafBilberry Leaf Powder · in blend
- 7Vitamin B6Vitamin B6 (as Pyridoxine) · in blend
- 8Ginkgo bilobaGingko Biloba Powder · in blend
- 9Vitamin B12Vitamin B12 (as Cyanocobalamin 1%) · in blend
- 10ZeaxanthinZeaxanthin (5%) · in blend
- 11Green tea extractGreen Tea Extract (50%) · in blend
Listed in label order, from most to least by weight, inside one 600 mg proprietary blend per serving.
Research
What does research say about bilberry?
NCCIH, the federal center for complementary health, says bilberry has not been clearly shown to help any health condition (NCCIH, Bilberry). Its best studies looked at night vision in healthy people and found no improvement.
Night vision
The strongest trials found no better night vision in healthy people who took bilberry.
Extract safety
Fruit extracts were used safely at up to 160 mg a day for up to 6 months.
Less known
Leaves are less studied, and NCCIH says high doses or long use may be unsafe.
None of that research looked at nerves, tingling feet or neuropathy. We found no source that links bilberry leaf to nerve function at any dose.
Leaf or fruit
Why does it matter that Nerve Savior uses bilberry leaf?
It matters because the leaf is the part with the weaker safety record. NCCIH's comfort with bilberry at up to 160 mg a day applies to fruit extract. For the leaves, it warns about high doses and long-term use (NCCIH, Bilberry).
A ceiling of 100 mg of leaf powder is a modest amount. It is far from what anyone would call a high dose. Still, Nerve Savior is meant to be taken every day, month after month. That is the kind of long-term use the caution describes, and the label does not say how much leaf you get.
Questions the label leaves open
- How many milligrams of leaf powder are in each serving?
- Is the powder raw leaf or a concentrated extract?
- Has the blend been tested for long daily use?
If those answers matter to you, the label's distributor line names Syvor LLC in Salisbury, North Carolina.
Brand graphic
Does the Nerve Savior packaging say how much bilberry is inside?
No. The brand's "Inside Nerve Savior" graphic shows tiles for the formula, the label directions and the daily routine. It shows no ingredient amounts, bilberry included.
So the only hard facts are on the Nerve Savior Supplement Facts panel: the name "Bilberry Leaf Powder", its sixth place, and the 600 mg blend total. Everything else is either label math or unknown.
That gap is common with proprietary blends. Our guide on how to read a proprietary blend walks through the method.
Safety
Is bilberry leaf safe, and who should ask a doctor first?
At the small amount Nerve Savior could contain, bilberry leaf is not the ingredient most likely to cause trouble. The NCCIH caution about leaves centers on high doses and long use (NCCIH, Bilberry). Other parts of the blend carry clearer warnings, which the side effects guide lists.
Ask a doctor or pharmacist before you start if:
- You plan to take it daily for many months. Ask whether a leaf product is a good idea for you.
- You already use another bilberry or blueberry-leaf product.
- You are pregnant or nursing, under 18, or have a known medical condition. The label itself says to consult a physician.
- You take several supplements. Side effects are more likely when people combine many products (ODS, What You Need to Know).
"Natural" does not always mean safe, and NCCIH notes that what a label says may not match what is in the bottle (NCCIH, Using Supplements Wisely).
Keep in mind
What bilberry leaf in Nerve Savior is not
Bilberry has no nerve research behind it. Numbness, tingling or burning can come from diabetes, low B12 or another cause, and a doctor's visit is how you find out.
Verdict
Our honest verdict on bilberry leaf in Nerve Savior
Bilberry leaf is the hardest ingredient in Nerve Savior to justify from the evidence. The plant has no clearly shown benefit, the studied part is the fruit, and the leaf carries a long-use caution. At no more than 100 mg, it is likely a small part of each capsule.
Fair points
- Named clearly as leaf powder
- Low ceiling of 100 mg
- Long history as a traditional herb
Weak spots
- Studies used fruit, not leaf
- No clear benefit for any condition
- Leaf caution for long-term use
The next ingredient on the label, vitamin B6, deserves a closer look than any other. Jump to it, or pick another profile.
FAQ
Bilberry leaf in Nerve Savior: common questions
How much bilberry is in Nerve Savior?
No amount appears on the label. Bilberry leaf powder is sixth in a 600 mg blend, so it can weigh at most 100 mg per 2-capsule serving. The true amount is likely lower, because the heavier ingredients sit above it on the list.
Is bilberry leaf the same as bilberry fruit extract?
No. They come from the same shrub, but most studies used fruit extract. NCCIH says fruit extracts were used safely at up to 160 mg a day for 6 months, while leaves may be unsafe in high doses or with long-term use (NCCIH, Bilberry).
Is it safe to take bilberry leaf daily?
It is not well studied for daily, long-term use. NCCIH warns that bilberry leaves may be unsafe in high doses or over long periods. If you plan to take Nerve Savior for months, ask your doctor whether a leaf product suits you.
Does bilberry help nerve pain or neuropathy?
None of the sources we read support that. NCCIH says bilberry has not been clearly shown to help any health condition, and its research focused on vision. Nerve pain, numbness or tingling should be checked by a doctor, because the cause decides the treatment (NINDS, Peripheral Neuropathy).
Does bilberry improve night vision?
The best studies say no. NCCIH reports that the strongest trials found no improvement in night vision among healthy people who took bilberry. Nerve Savior makes no vision claim on its label either.
Why would a nerve supplement contain bilberry leaf?
The maker gives no reason on the label. Bilberry is sold as a traditional herb. Without an amount or a stated purpose, there is no way to judge what it adds to Nerve Savior.
What are the side effects of bilberry leaf?
The sources we checked do not list specific side effects at small doses. NCCIH's main caution is that leaves may be unsafe in high doses or with long use. Stop the product and call your doctor if anything new or unusual happens.
Who wrote this
Written and reviewed by
Plain-language pages built from the bottle label, the order page and linked public health sources such as NIH, FDA and CDC.
Last updated . Read our editorial standards and the way we check reviews. This website is run by a U.S. retailer for Nerve Savior, not by the manufacturer. We get paid when you buy through our order links.
Keep reading
More about Nerve Savior
Lutein
Fifth on the label, about 6 mg of lutein at most, and studied for eyes rather than nerves.
Read more
Side effects
Side effects and drug interactions for each Nerve Savior ingredient, plus who should skip it and when to call a doctor.
Read moreIngredients
All 11 ingredients in label order, with the most each can weigh and how that compares with research.
Read moreUSA Authorized Nerve Savior Retailer
Ready to try Nerve Savior?
Pick how long you want to try it. Two capsules a day, and one bottle lasts 30 days.
- Secure checkout
- 30-day return window
- Ships from the U.S. with tracking
