Ingredient 11 of 11
Green Tea Extract in Nerve Savior: Amount, Liver Safety and Drug Interactions
Green tea extract is listed last of 11 in the Nerve Savior 600 mg blend, so it is the smallest ingredient: at most 54.5 mg by label math. It has not been studied for nerves. Its known risks are rare liver injury with extract pills, a little caffeine, and lower blood levels of nadolol and atorvastatin.
Written by the Nerve Savior editorial teamUpdated
The basics
What is green tea extract?
Green tea extract is a concentrate of leaves from the tea plant, Camellia sinensis. It packs the leaf's catechins, mainly EGCG, into a powder, along with some caffeine (NCCIH, Green Tea) (LiverTox, Green Tea).
Nerve Savior lists it as "Green Tea Extract (50%)", the final item in its proprietary blend. The label gives no reason for including it.
| Label name | Green Tea Extract (50%) |
|---|---|
| What it is | Camellia sinensis · Tea leaf extract |
| Position in the blend | 11 of 11 (labels list blend ingredients from most to least by weight) |
| Amount per capsule | Not disclosed; at most 54.5 mg by label math |
| Amount used in research | Liver reports mostly with extract pills |
| Strength of evidence | Not studied for nerves |
| Why it is used | Source of catechins (EGCG) and some caffeine |
| Main caution | Rare liver injury with extracts; contains caffeine; lowers nadolol and atorvastatin levels. |
Label math
How much green tea extract is in Nerve Savior?
At most 54.5 mg per 2-capsule serving, and very likely less. Because it is listed last, it is the smallest of the 11 ingredients by weight.
FDA labeling rules require blend ingredients in order from most to least by weight (FDA, Labeling Guide Ch. IV). If all 11 shared the 600 mg evenly, each would weigh 54.5 mg. The last item cannot weigh more than an even share, so that is its ceiling. Its floor is anything above zero.
| Label position | Ingredient | At most | Share of the blend, at most |
|---|---|---|---|
| 8 of 11 | Ginkgo biloba powder | 75 mg | 12.5% |
| 9 of 11 | Vitamin B12 (1%) | 66.7 mg of material | 11.1% |
| 10 of 11 | Zeaxanthin (5%) | 60 mg of material | 10% |
| 11 of 11 | Green tea extract (50%) | 54.5 mg | 9.1% |
What does the "50%" mean?
The label does not say. Green tea extracts are usually standardized to a share of some compound, such as total polyphenols, catechins or EGCG. Each of those gives a different number. Read literally, half of 54.5 mg is about 27 mg of whatever the 50% refers to, at most. The caffeine content is not printed either, but it cannot exceed the 54.5 mg extract weight and is almost certainly a small part of it.
Evidence
Does green tea extract help nerves?
There is no evidence that it does. None of the government sources we checked describes a nerve benefit for green tea or its extract, and the brand cites no study.
The research that does exist on green tea extract in pill form is mostly about safety. The NIH's National Center for Complementary and Integrative Health (NCCIH) focuses on liver reports, caffeine and drug interactions (NCCIH, Green Tea). LiverTox, the NIH liver-injury database, rates it a well-established cause of liver injury (LiverTox, Green Tea).
- No trial has tested green tea extract for numbness, tingling, burning or nerve function.
- No trial has tested the Nerve Savior formula.
If nerve symptoms are why you are shopping, the cause matters more than any extract. Tingling or numbness in the feet can come from diabetes, low B12, medicines or alcohol, and a doctor can test for those (MedlinePlus, Peripheral Nerve Disorders).
Safety
Can green tea extract harm the liver?
Rarely, yes. NCCIH says liver injury is uncommon but has been reported, mainly with green tea extract tablets and capsules rather than with tea as a drink (NCCIH, Green Tea).
LiverTox gives green tea a likelihood score of A, its highest category. When injury happens, it usually shows up 1 to 6 months after starting the product. The catechins, mainly EGCG, are the likely cause (LiverTox, Green Tea). NCCIH adds that people with a certain immune-gene variant, found in about 5 to 15% of Americans, appear more likely to react (NCCIH, Green Tea). Most people do not know whether they carry it.
The small amount in Nerve Savior lowers the odds, but nobody can say by how much. Liver reports tie mostly to larger extract doses, and the label only gives a ceiling.
Yellowing skin or eyes, dark urine, pain in the upper right belly, nausea that will not settle, or unusual tiredness. These can be signs of liver trouble. Bring the bottle so the doctor sees every ingredient.
If you have liver disease, ask your doctor before taking Nerve Savior. The cinnamon extract in the same blend carries a separate liver caution.
Medicines
Does green tea extract interact with medications?
Yes, with at least two common drugs. NCCIH says high doses lower blood levels of the beta-blocker nadolol, and the extract can lower levels of the statin atorvastatin (NCCIH, Green Tea).
| If you... | Why it matters | What to do |
|---|---|---|
| Take nadolol for blood pressure or heart rhythm | The extract can lower nadolol levels in the blood | Ask your prescriber before starting |
| Take atorvastatin for cholesterol | The extract can lower atorvastatin levels | Ask your prescriber or pharmacist |
| Are sensitive to caffeine | Green tea contains caffeine; the amount is not printed | Take it earlier in the day and watch for jitters |
| Already take a green tea or "fat burner" pill | Extract doses add up, and liver reports tie to extract pills | Avoid stacking extract products |
| Have liver disease | Liver injury is the main known risk | Ask your doctor first |
Comparison
How does green tea extract compare with the other ingredients on safety?
It carries the strongest liver signal in the blend, even though it is the smallest ingredient. LiverTox scores green tea A and ginkgo E, which means unlikely (LiverTox, Ginkgo) (LiverTox, Green Tea).
Green tea extract
A well-established cause of liver injury in pill form. Last on the label, at most 54.5 mg.
Ginkgo biloba
Liver injury is unlikely. Its own concern is bleeding with blood thinners. Eighth, at most 75 mg.
Cinnamon extract
Coumarin in cassia cinnamon has been linked to liver effects (NCCIH, Cinnamon). Second, at most 300 mg.
Position on a label tells you weight, not risk. A small amount of a strong-acting ingredient can matter more than a large amount of a mild one.
Our verdict
Is green tea extract a plus or a minus in Nerve Savior?
On balance, a small minus. It adds no studied nerve benefit and brings a rare liver risk, caffeine and two drug interactions, though at a low dose.
Fair points
- The smallest ingredient, at most 54.5 mg.
- A familiar, widely sold ingredient with public safety data.
- Named on the label with its strength (50%).
Weak spots
- No nerve research behind it.
- The label does not say what the 50% refers to.
- Rare liver injury reported with extract pills.
- Lowers nadolol and atorvastatin levels.
Keep exploring
What comes before green tea extract on the label?
Zeaxanthin sits just above it, and Himalayan pink salt opens the list. Open any ingredient below, or read our side effects guide for the whole formula at once.
FAQ
Green tea extract in Nerve Savior: common questions
How much green tea extract is in Nerve Savior?
The label prints no amount, but green tea extract is listed last in a 600 mg blend of 11 ingredients. That makes it the smallest one, at most 54.5 mg per 2 capsules. The real amount could be lower; label order only sets the ceiling.
Does Nerve Savior have caffeine?
Yes, a small amount, because green tea extract contains caffeine. The label does not print how much. It cannot be more than the 54.5 mg ceiling for the whole extract and is very likely far less. If caffeine bothers you, take your capsules earlier in the day.
Is green tea extract bad for your liver?
It can be, rarely. LiverTox rates green tea a well-established cause of liver injury, usually 1 to 6 months after starting, and NCCIH says reports come mainly from extract pills. Stop and call a doctor if you notice yellow skin or eyes or dark urine.
Can I take Nerve Savior with atorvastatin?
Ask your doctor or pharmacist first. NCCIH says green tea extract can lower blood levels of atorvastatin, a common statin, which might make it work less well. Nerve Savior lists green tea extract in its blend, though the label does not print the amount.
Can I take Nerve Savior with nadolol?
Talk to your prescriber before starting. NCCIH reports that high doses of green tea lower blood levels of nadolol, a beta-blocker. The amount in Nerve Savior is small but unknown, so your prescriber should decide whether the combination is safe for you.
What does the 50% after green tea extract mean on a label?
It usually means the extract is standardized so half its weight is a certain compound, such as polyphenols, catechins or EGCG. The Nerve Savior label does not say which. At most, that is about 27 mg of the named compound in a serving.
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
Side effects
Side effects and drug interactions for each Nerve Savior ingredient, plus who should skip it and when to call a doctor.
Read more
Ginkgo biloba
At most 75 mg of leaf powder, below studied doses, with a bleeding caution for anyone on blood thinners.
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
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