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Part of our Nerve Fresh overview. Last checked October 28, 2026.
Nerve Fresh ingredients are five named botanicals, prickly pear, passionflower, marshmallow root, corydalis (yanhusuo) and California poppy, plus "vitamin and mineral support" that the vendor never names[1]. The vendor publishes 0 ingredient amounts: no Supplement Facts panel, no label image and no other-ingredients list. That means no dose in Nerve Fresh can be checked against any study.
Nerve Fresh ingredients at a glance
The Nerve Fresh ingredients list has five herbs with no disclosed amounts, and the strongest human evidence among them is limited support for passionflower in anxiety and sleep. The grades below are ours, from the PubMed sources on this page, read October 20, 2026.
| Ingredient | Role claimed by the vendor | Amount disclosed? | Evidence grade (nerve pain) |
|---|---|---|---|
| Prickly pear (Opuntia ficus-indica) | Blocks enzymes behind "pins and needle sensations" | No | No human evidence found |
| Passionflower (Passiflora incarnata) | Calm and sleep | No | Weak; Limited for calm and sleep |
| Marshmallow root (Althaea officinalis) | Soothing support | No | No human evidence found |
| Corydalis (Corydalis yanhusuo) | "Diminish your inflammatory pain" | No | Weak |
| California poppy (Eschscholzia californica) | Sleep, mood, "neuralgia" | No | Weak; Limited for calm, in a combination only |
| Vitamins and minerals | "Support" | Not even named | Cannot be graded |
What is in each ingredient, and what does research say?
Each herb has some research, but none has a human trial for neuropathy, and none can be matched to Nerve Fresh because the doses are hidden. Here is what each one is and what people were actually given in studies.
Prickly pear
Prickly pear is the nopal cactus, eaten as a food in Mexico and the US Southwest. The vendor says it protects against "three harmful enzymes" behind pins and needles, without a source[1].
Human research is about metabolism. A systematic review found the cladode (pad) shows some promise for lowering glucose, while fruit products mostly did not, and most trials had high risk of bias[2]. A meta-analysis found lower body fat, blood pressure and total cholesterol, but no weight change[3]. Doses studied included 5 g a day of nopal powder[4]. Our grade for nerve pain: no evidence.
Passionflower
Passionflower is a climbing vine used in herbal calming products. Neuralgia is a traditional use only[5].
For anxiety, a systematic review of 9 trials found most reported less anxiety[6]. In 110 adults with insomnia, total sleep time rose on sleep-lab testing[7]. Doses studied: 45 drops a day of extract for 4 weeks[8] and one cup of tea nightly for 7 days[9]. Grade: Limited for calm and sleep, Weak for nerve pain.
Marshmallow root
Marshmallow root is a slimy, mucilage-rich root used for sore throat and cough. A review describes soothing and cough-easing effects, mostly in mixes with other herbs[10]. A 1% ointment did well against 1% hydrocortisone in a small pediatric eczema pilot[11]. No oral dose is established in the sources we read, and we found nothing on nerves or calm.
Corydalis
Corydalis yanhusuo is a root used in Chinese herbal practice for pain. Its pain-relief case rests on reviews of its alkaloids, mostly animal and cell work[12]. It is one of the three most-used Chinese pain herbs, with neuropathic pain covered only inside multi-herb formulas[13].
Its alkaloid l-tetrahydropalmatine (l-THP) blocks dopamine D1 and D2 receptors and is sold as the drug Rotundine in China[14]. No standardized human dose comes out of these sources. Grade: Weak.
California poppy
California poppy is the orange wildflower of the West Coast, a relative of other poppies. In mice it reduced pain responses and had sedative and anti-anxiety effects that were blocked by flumazenil, which points to the same receptor benzodiazepines use[15][16].
The only human trial gave it in a fixed mix with hawthorn and magnesium for mild to moderate anxiety, which beat placebo[17]. Poppy's own share cannot be separated. Grade: Limited for calm, Weak for nerve pain.
How transparent is the Nerve Fresh formula?
The Nerve Fresh formula is not transparent: as of October 28, 2026, the vendor shows names only, with no amounts, no extract strengths and no label photo. A proprietary blend at least states one total weight, which lets readers do rough math on the largest possible share of each herb. Nerve Fresh gives no total, so even that arithmetic is impossible.
The vitamins and minerals are not named at all. Some third-party sites repeat the same five herbs, also with no amounts. When a vendor label appears, it should win over any third-party list, and we will update this page with the date we see it.
The vendor says the capsules are "Made in the USA" in a "GMP Certified", "FDA registered facility" and "third-party tested", without naming the facility, certifier or lab[1]. Registration is not an FDA review of the product. Our legitimacy check covers the seller.
Ingredient safety and interactions
Three of the five herbs, passionflower, corydalis and California poppy, can cause drowsiness, so they deserve care with gabapentin, pregabalin, opioids, sleep aids, alcohol and other sedatives. Ask your doctor before combining them, and keep taking your prescribed medicine.
- Corydalis: a Chinese pain product, Jin Bu Huan, caused acute and chronic hepatitis[18]. The link to corydalis comes from l-THP research, not those case reports.
- California poppy: extracts blocked several liver drug-processing enzymes in lab tests[19].
- Prickly pear: may add to diabetes and blood pressure drugs[2].
Details are on our Nerve Fresh side effects page.
Do these ingredients prove Nerve Fresh works?
No. Ingredient studies cannot prove a product works when the product's doses are secret and none of the herbs has a human nerve pain trial. The vendor's line that each ingredient is "backed by research and peer-reviewed studies that prove the effectiveness" is not supported by the studies above[1].
The fair summary is limited calm and sleep evidence for passionflower, animal pain data for poppy and corydalis, and nothing nerve-related for prickly pear or marshmallow root. Our evidence check on whether Nerve Fresh works walks through each claim, and how to take Nerve Fresh covers the vendor's directions.
Back to the Nerve Fresh overview.
Frequently asked questions
What are the ingredients in Nerve Fresh?
The vendor names prickly pear, passionflower, marshmallow root, corydalis (yanhusuo) and California poppy, plus unnamed vitamin and mineral support. No amounts, extract strengths, label image or other-ingredients list are published, checked October 28, 2026.
Does Nerve Fresh have a Supplement Facts label?
No Supplement Facts panel appears on the home page, sales video page or order form as of October 28, 2026. Without it, nobody can check how much of each herb a capsule holds or compare doses with research.
Which vitamins and minerals are in Nerve Fresh?
The vendor does not say. Its home page mentions vitamin and mineral support without naming a single vitamin or mineral or giving any amount, so you cannot check them against other supplements you take.
Is corydalis safe to take with gabapentin?
Ask your prescriber first. Corydalis has sedative effects in preclinical work, and its alkaloid l-THP blocks dopamine receptors, so it may add to the drowsiness of gabapentin or other sedatives. Do not stop gabapentin to make room for a supplement.
Is the Nerve Fresh nerve support formula all natural?
The vendor calls it All Natural, Non-GMO and Gluten-Free. Natural does not mean risk-free: three of its herbs can cause drowsiness, and Jin Bu Huan, a Chinese pain product linked through research to the corydalis alkaloid l-THP, caused hepatitis cases.
Sources
- Nerve Fresh home page (ingredients, badges, FAQ). Nerve Fresh vendor, read October 28, 2026.
- Systematic review of prickly pear and glucose (PMID 31096667). PubMed, read October 20, 2026.
- Meta-analysis of prickly pear trials on weight, body fat and blood pressure (PMID 25837206). PubMed, read October 20, 2026.
- Nopal powder 5 g a day and bone density in women (PMID 32160071). PubMed, read October 20, 2026.
- Passionflower traditional uses and trial quality (PMID 24140586). PubMed, read October 20, 2026.
- Systematic review of 9 passionflower trials for anxiety (PMID 33352740). PubMed, read October 20, 2026.
- Passionflower for insomnia, randomized trial in 110 adults (PMID 31714321). PubMed, read October 20, 2026.
- Passionflower vs oxazepam for generalized anxiety, pilot randomized trial (PMID 11679026). PubMed, read October 20, 2026.
- Passionflower tea and subjective sleep quality (PMID 21294203). PubMed, read October 20, 2026.
- Marshmallow root mucilage and cough (PMID 31770755). PubMed, read October 20, 2026.
- Marshmallow ointment vs hydrocortisone in children with atopic dermatitis (PMID 33034099). PubMed, read October 20, 2026.
- Corydalis alkaloids and pain, pharmacology overview (PMID 34946576). PubMed, read October 20, 2026.
- Most-used Chinese herbs for pain, including corydalis (PMID 32054304). PubMed, read October 20, 2026.
- l-Tetrahydropalmatine as a dopamine receptor antagonist (PMID 22300097). PubMed, read October 20, 2026.
- California poppy sedative and pain effects in mice (PMID 11507727). PubMed, read October 20, 2026.
- California poppy anxiolytic and sedative doses in mice (PMID 1680240). PubMed, read October 20, 2026.
- Hawthorn, California poppy and magnesium combination for anxiety, randomized trial (PMID 14741074). PubMed, read October 20, 2026.
- Jin Bu Huan and hepatitis, case reports (PMID 7741903). PubMed, read October 20, 2026.
- California poppy extracts and CYP enzymes in vitro (PMID 27054913). PubMed, read October 20, 2026.
This page is general information, not medical advice. Dietary supplements are not reviewed by the FDA for safety or effectiveness before they are sold and are not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor before taking any supplement, especially if you are pregnant, nursing, take medication or have a health condition.
