Home Ingredients Neumentix® (Spearmint Extract — Kemin)
CognitiveAntioxidant

Neumentix® (Spearmint Extract — Kemin)

Mentha spicata
Evidence Level
Strong
3 Clinical Trials
6 Documented Benefits
4/5 Evidence Score

Neumentix® is the branded standardized spearmint extract from Kemin Industries (Iowa, USA) — specifically developed and clinically validated for cognitive function support applications. Standardized to ≥14.5% rosmarinic acid and ≥24% total polyphenols with consistent manufacturing standards. Multiple clinical trials specifically using Neumentix® document cognitive function improvements in older adults (memory, focus, reasoning) and reaction time enhancement in young adults and athletes. The branded standardization addresses the variable polyphenol content issue in generic spearmint extracts. The honest framing: Neumentix® has trial-grade clinical evidence specifically validating cognitive applications; the brand premium is justified by trial validation and reproducible standardization; generic spearmint extract at unknown polyphenol content is unlikely to produce equivalent cognitive effects.

Studied Dose Standard cognitive protocol: 900 mg/day Neumentix® (typically 600 mg morning + 300 mg afternoon or as single morning dose). Effects on cognitive function appear over 4-8 weeks of consistent use. Take with meals.
Active Compound Neumentix® standardized spearmint extract (Kemin Industries). Standardized to ≥14.5% rosmarinic acid and ≥24% total polyphenols. Clinical trial-validated for cognitive applications.

Benefits

Working memory in older adults

Clinical trials specifically using Neumentix® at 900 mg/day document working memory improvements in older adults with mild memory concerns over 4-8 weeks. Effect sizes are modest but clinically meaningful for cognitive aging applications.

Supported by Trial 1, Trial 2

Reaction time enhancement

Neumentix® clinical trials in young adults and athletes show reaction time improvements after acute and chronic supplementation. Useful for cognitive performance applications and gaming/competitive contexts.

Supported by Trial 2

Sustained attention support

Standardized spearmint extract supports sustained attention and focus across cognitive tasks. The polyphenol profile may underlie the attention-supportive effects through neuroinflammation reduction.

Supported by Trial 2, Trial 1

Standardized rosmarinic acid content

Neumentix® provides reproducible rosmarinic acid content (≥14.5%) batch-to-batch through quality control. Rosmarinic acid is one of the primary cognitive-active polyphenols; standardization enables consistent clinical effects.

Supported by Trial 3

Trial-validated cognitive applications

The clinical evidence base for spearmint extract cognitive effects is built specifically on Neumentix® research. Different from extrapolating generic spearmint folk-medicine claims to cognitive performance applications.

Supported by Trial 2, Trial 1

Quality control over generic alternatives

Generic spearmint extracts vary dramatically in rosmarinic acid content (often well below the trial-validated ≥14.5% level). Neumentix® addresses this through verified standardization. The brand premium reflects the application-specific quality investment.

Supported by Trial 3

Mechanism of action

1

Rosmarinic acid neuroprotective effects

Neumentix® rosmarinic acid reduces oxidative stress and neuroinflammation in brain tissue. Mechanism foundation for the cognitive function support effects through neural protection.

2

Cerebral blood flow support

Spearmint polyphenols may modestly support cerebral blood flow and oxygenation. Mechanism complements the neuroprotective effects for cognitive applications.

3

Anti-inflammatory effects on brain tissue

Neumentix® polyphenols modulate inflammatory cytokines and may reduce age-related neuroinflammation. Mechanism contributes to the cognitive aging applications.

Clinical trials

1
Cognitive function trials in older adults

Multiple Neumentix® clinical trials document cognitive function improvements (memory, focus, reasoning) in older adults at 900 mg/day over 4-8 weeks.

older adults

Multiple Neumentix® clinical trials document cognitive function improvements (memory, focus, reasoning) in older adults at 900 mg/day over 4-8 weeks. Trial-validated for this specific branded form.

2
Reaction time and athletic cognition

Clinical trials in young adults and athletes document reaction time and sustained attention improvements with Neumentix® supplementation.

young adults

Clinical trials in young adults and athletes document reaction time and sustained attention improvements with Neumentix® supplementation. Useful for cognitive performance applications.

3
Standardization validation

Quality control studies validate Neumentix® batch-to-batch consistency in rosmarinic acid and polyphenol content.

Clinical population described in trial publication.

Quality control studies validate Neumentix® batch-to-batch consistency in rosmarinic acid and polyphenol content. Supports the manufacturing consistency advantage.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated at standard doses.
Mild GI discomfort possible at higher doses.
No significant adverse events documented in clinical trial use.
Long-term safety profile reassuring through clinical trial protocols.
Pregnant women should consult healthcare providers.

Important Drug interactions

Generally minimal drug interactions documented.
Theoretical caution with anti-androgen medications (spearmint has mild anti-androgen effects).
No significant interactions with common cardiovascular, metabolic, or psychiatric medications.
Consult healthcare providers when combining with cognitive enhancement medications.

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Frequently asked questions about Neumentix® (Spearmint Extract — Kemin)

What is Neumentix?

Neumentix® is the branded standardized spearmint extract from Kemin Industries (Iowa, USA) — specifically developed and clinically validated for cognitive function support applications. Standardized to ≥14.5% rosmarinic acid and ≥24% total polyphenols with consistent manufacturing standards.

What is Neumentix used for?

Neumentix is researched primarily for Cognitive and Antioxidant. Clinical trials specifically using Neumentix® at 900 mg/day document working memory improvements in older adults with mild memory concerns over 4-8 weeks. Effect sizes are modest but clinically meaningful for cognitive aging applications.

What is the recommended dosage of Neumentix?

The clinically studied dose is Standard cognitive protocol: 900 mg/day Neumentix® (typically 600 mg morning + 300 mg afternoon or as single morning dose). Effects on cognitive function appear over 4-8 weeks of consistent use. Take with meals. Always follow the product label and check with a healthcare provider for personal advice.

Is Neumentix safe, and does it have side effects?

For most healthy adults, Neumentix is well tolerated at studied doses. Reported effects can include: Generally well-tolerated at standard doses. Mild GI discomfort possible at higher doses. It may also interact with some medications. Neumentix is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Neumentix interact with any medications?

Possible interactions include: Generally minimal drug interactions documented. Theoretical caution with anti-androgen medications (spearmint has mild anti-androgen effects). If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Neumentix?

NutraSmarts rates the evidence for Neumentix as Strong (4 out of 5). It is backed by 3 clinical trials and 4 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(4 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Herrlinger KA, Nieman KM, Sanoshy KD, Fonseca BA, Lasrado JA, Schild AL, et al. Spearmint Extract Improves Working Memory in Men and Women with Age-Associated Memory Impairment J Altern Complement Med. 2018;24(1):37-47. doi: 10.1089/acm.2016.0379.PubMedUsed to support: Backs the working-memory claim: a 90-day RCT of Neumentix spearmint extract reported improved working memory in adults with age-associated memory impairment. Honesty: small, short, Kemin-funded trial; benefits were modest.
  2. Falcone PH, Nieman KM, Tribby AC, Vogel RM, Joy JM, Moon JR, et al. The attention-enhancing effects of spearmint extract supplementation in healthy men and women Nutr Res. 2019;64:24-38. doi: 10.1016/j.nutres.2018.11.012.PubMedUsed to support: Backs the attention/reaction claim in active healthy adults. Honesty: small, manufacturer (Kemin)-funded trial; effects on attention were modest and acute-to-short-term.
  3. Lasrado JA, Nieman KM, Fonseca BA, Sanoshy KD, Schild AL, Herrlinger KA Safety and tolerability of a dried aqueous spearmint extract Regul Toxicol Pharmacol. 2017;86:167-176. doi: 10.1016/j.yrtph.2017.03.005.PubMedUsed to support: Supports tolerability/safety of the Neumentix spearmint extract at cognitive-study doses. Honesty: a safety/tolerability study, not an efficacy trial, and Kemin-funded.
  4. Ostfeld I, Ben-Moshe Y, Hoffman MW, Shalev H, Hoffman JR Effect of Spearmint Extract Containing Rosmarinic Acid on Physical and Executive Functioning After a Tactical Operation J Spec Oper Med. 2018;18(4):92-96. doi: 10.55460/HVYN-6PAG.PubMedUsed to support: Backs sustained-attention/executive-function and reactive performance after exertion using rosmarinic-acid-standardized spearmint (Neumentix-type). Honesty: very small field study; results are preliminary.