Disclaimer: This article is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Individual results vary. This article does not contain affiliate links. Verify current pricing on each brand's official website before purchasing, as prices may have changed since publication.
By SigMedical Insights Team
Quick Answer: This comparison evaluates Memopezil, Memopryl, Mind Lab Pro, and Neuriva against five criteria: ingredient transparency, dosage alignment with published research, drug interaction profile, price, and formula simplicity. Mind Lab Pro leads on ingredient transparency (11 ingredients, all dosages disclosed). Neuriva leads on formula simplicity. Memopryl and Memopezil both have partial dosage disclosure gaps. No product is ranked first overall — each is matched to the reader scenario it best fits.
How We Evaluated These Cognitive Supplements
This comparison evaluates four products in the cognitive nootropic supplement space against five criteria. Products were selected based on market presence, overlap with common search intent for “Memopezil vs” comparisons, and relevance to the adult consumer considering a cholinergic-pathway supplement.
Each product was evaluated against the same five dimensions: ingredient transparency (are all dosages publicly disclosed?), dosage alignment (do disclosed dosages fall within research-supported ranges?), drug interaction profile (what is the interaction complexity for adults on common medications?), price per month at standard serving, and formula complexity (number of active ingredients and the evaluability that creates for buyers).
No independent product testing was conducted. All information is sourced from each brand's published Supplement Facts panels, verified pricing as of May 2026, and published pharmacology literature. Products are ordered alphabetically. The SigMedical Insights Team has no commercial relationship with any product listed in this comparison. This article does not contain affiliate links.
The Comparison Framework: Five Decision Points That Matter
Ingredient transparency is the foundational criterion because it determines whether all other evaluations are possible. A product that does not disclose individual dosages cannot be meaningfully compared to the research — buyers must either trust the brand's claims or purchase and verify the physical label. Partial transparency (some dosages disclosed, some not) is better than no transparency but still limits evaluation.
Dosage alignment matters because the research on these ingredients was conducted at specific doses with specific extract standardizations. A product containing 50mg of Bacopa is not the same as a product containing 300mg — and both are substantively different from a product that doesn't disclose its Bacopa dose. Alignment with research ranges makes an ingredient's expected effect more plausible; deviation from those ranges in either direction reduces the applicability of research evidence.
Drug interaction profile determines risk for the large portion of this category's target audience who take prescription medications. A simpler formula with fewer interactive ingredients is easier to clear with a pharmacist. A more complex formula with multiple high-interaction ingredients requires more thorough review. Neither is inherently better — but the buyer needs to know which situation they are in.
Price per month provides a practical comparison across different package structures and serving sizes.
Formula complexity affects evaluability. An 11-ingredient formula with all dosages disclosed is more evaluable than a 5-ingredient formula with only 2 dosages confirmed, even though the latter is simpler — because the buyer knows exactly what they are getting from the former.
Memopezil (GEX Corp)
Memopezil is a five-ingredient supplement distributed by GEX Corp (Lakeland, FL) and sold through realmemopezil.com. The Supplement Facts panel lists BCAAs 2:1:1 at 540mg, Bacopa Monnieri Extract at 200mg, Rhodiola Rosea Extract, L-Theanine, and Panax Ginseng Extract — with individual dosages confirmed for only the first two. Rhodiola, L-Theanine, and Panax Ginseng dosages are not publicly available in readable text form from official sources as of May 2026.
Ingredient transparency: Partial. Two of five active ingredient dosages confirmed. No extract standardization percentages disclosed publicly.
Dosage alignment: Bacopa at 200mg falls below the research range most associated with measurable cognitive outcomes (300-450mg standardized extract). BCAAs at 540mg are below typical sports nutrition doses and represent a cognitive-support application that is not strongly supported by current research. Rhodiola, L-Theanine, and Panax Ginseng alignment cannot be assessed without confirmed dosages.
Drug interaction profile: Moderate complexity. Panax Ginseng interacts with anticoagulants, diabetes medications, and stimulants. Rhodiola interacts with MAOIs and SSRIs. Bacopa interacts with thyroid medications. Pharmacist consultation recommended for adults on any of these medication classes. See the safety guide for full interaction details.
Price per month: $49/month at the 6-bottle price ($294 for 180-day supply, free US shipping). $69/month at the 3-bottle price. $79/month at the 2-bottle price.
Notable concern: Multiple products using the Memopezil brand name exist with materially different formulas. Buyers should verify the Supplement Facts panel matches the GEX Corp formula before purchasing. A BBB consumer complaint on record (February 2026) reported support access issues. For the full product audit, see the Memopezil review.
Memopryl
Memopryl is an eight-ingredient nootropic supplement distributed by MemoPryl Research and sold through ClickBank. The formula contains Ginkgo Biloba Extract, Phosphatidylserine, Bacopa Monnieri Extract, N-Acetyl-L-Carnitine (ALCAR), St. John's Wort, L-Glutamine, Alpha-GPC, and Huperzine A. Per-ingredient milligram dosages are not publicly disclosed — the Supplement Facts panel is available only on the physical product label.
Ingredient transparency: Low for online pre-purchase evaluation. All eight ingredient names are disclosed but no individual dosages are publicly available from official sources. Buyers cannot compare dosages to research ranges without the physical label.
Dosage alignment: Cannot be assessed without confirmed dosages. Ingredient selection is strong — Bacopa, Phosphatidylserine, Alpha-GPC, and Huperzine A each have genuine research bases in cognitive support. The presence of Huperzine A is notable: it is a potent AChE inhibitor with a narrow therapeutic window, and its interaction with other cholinergic-pathway supplements and medications is more significant than most botanical ingredients.
Drug interaction profile: High complexity. St. John's Wort has documented interactions with a very wide range of medications — it is one of the most broadly interactive botanical supplements available, affecting CYP450 enzymes that metabolize many prescription drugs including antidepressants, antiretrovirals, anticoagulants, and birth control. Huperzine A's AChE inhibitory activity creates interactions with anticholinergic medications, AChE inhibitor prescription drugs, and medications with narrow therapeutic windows. The full drug interaction checklist for Memopryl is among the most complex in this comparison. Pharmacist review of the physical label against your complete medication list is strongly recommended.
Price per month: Pricing varies by purchase channel. ClickBank pricing structures should be verified at the official Memopryl website at time of purchase.
Mind Lab Pro (Performance Lab Group)
Mind Lab Pro is an eleven-ingredient nootropic supplement manufactured by Performance Lab Group, a UK-based company. The formula includes Citicoline (250mg), Bacopa Monnieri (150mg, standardized to 24% bacosides), Lion's Mane Mushroom (500mg fruiting body extract), Phosphatidylserine (100mg, sunflower-derived), N-Acetyl-L-Tyrosine (175mg), L-Theanine (100mg Suntheanine), Rhodiola Rosea (50mg, standardized to 3% rosavins, 1% salidroside), Maritime Pine Bark Extract (75mg), Vitamins B6, B9, B12, and NutriGenesis minerals.
Ingredient transparency: Highest in this comparison. All 11 active ingredient dosages are publicly disclosed, and several use patented, standardized forms with confirmed extract percentages. This is the most evaluable formula in this comparison group.
Dosage alignment: Mixed. Citicoline at 250mg is within the research range for choline donation. Bacopa at 150mg with 24% bacosides standardization is below the dose range most associated with measurable outcomes (300-450mg of 40-55% standardized extract) — though it is the only formula in this comparison with confirmed bacosides percentage. Rhodiola at 50mg is below most research-supported ranges (200-600mg) — a notably low dose even for this ingredient. Lion's Mane at 500mg fruiting body is within typical research doses. The formula's transparency advantage is significant; its sub-researched-range dosages on several key ingredients are the trade-off.
Drug interaction profile: Moderate. No St. John's Wort, no Huperzine A, no Panax Ginseng — which removes the highest-interaction ingredients present in other products. Bacopa interaction with thyroid medications applies. B-vitamin megadosing is not present (doses are within normal ranges). Easiest formula in this comparison to clear with a pharmacist due to transparent ingredient disclosure.
Price per month: Approximately $69-$79/month for a single-bottle purchase. Discounts apply at multi-month packages. Verify current pricing at the official Mind Lab Pro website.
Neuriva (Schiff Vitamins)
Neuriva is a two-ingredient supplement manufactured by Schiff Vitamins (a subsidiary of Reckitt). The standard formula contains Phosphatidylserine (100mg) and Neurofactor Coffee Fruit Extract (100mg). Several product variants exist (Neuriva Plus, Neuriva Ultra) with different formulations — this evaluation covers the standard Neuriva formulation.
Ingredient transparency: Highest in terms of simplicity. Two ingredients, both dosages publicly disclosed. Limited by formula simplicity — there is less to evaluate, but what is disclosed is fully disclosed.
Dosage alignment: Phosphatidylserine at 100mg is at the lower end of research-supported ranges (100-300mg) for aging-related cognitive support — a 1992 FDA qualified health claim related to dementia risk reduction exists for phosphatidylserine, though the evidence base is modest. Neurofactor (coffee fruit extract) is a proprietary ingredient with limited independent peer-reviewed research; its BDNF-stimulating effects are primarily supported by company-funded research.
Drug interaction profile: Lowest complexity in this comparison. Two ingredients with limited documented interactions. The simplest formula to review with a pharmacist.
Price per month: Widely available at retail ($30-$50/month). Verify current pricing at point of purchase.
Side-by-Side: The Five Decision Points
Ingredient transparency: Mind Lab Pro leads (all 11 dosages disclosed, extract percentages confirmed on several). Neuriva second (2 ingredients, both disclosed). Memopezil third (2 of 5 dosages confirmed). Memopryl fourth (0 dosages confirmed from online sources).
Dosage alignment with research: Mind Lab Pro is the most evaluable — though several key ingredients fall below research ranges despite disclosure. Neuriva's Phosphatidylserine is within range; Neurofactor lacks an independent research base. Memopezil's Bacopa at 200mg falls below the strongest research range; BCAAs at 540mg serve a nutritional positioning role with limited cognitive research. Memopryl cannot be assessed.
Drug interaction profile: Neuriva is the simplest to clear (2 ingredients, limited interactions). Mind Lab Pro next (11 disclosed ingredients, no highest-risk compounds). Memopezil next (five ingredients, three with notable interaction profiles). Memopryl is the most complex (St. John's Wort + Huperzine A create the broadest interaction checklist).
Price per month: Neuriva is lowest (retail $30-$50). Memopezil at 6-bottle pricing is next ($49). Mind Lab Pro ($69-$79). Memopryl pricing varies by channel.
Formula complexity / evaluability: Mind Lab Pro is the most evaluable (most disclosed). Neuriva is the simplest (least to evaluate). Memopryl has the deepest ingredient stack with the least pre-purchase evaluability. Memopezil is mid-range in both dimensions.
Which Formula for Which Situation
For adults who need to review their supplement against a prescription medication list: Neuriva's two-ingredient formula is the easiest to bring to a pharmacist. The ingredient list fits in one sentence. If your pharmacist clears Phosphatidylserine and coffee fruit extract against your medications, you have your answer in five minutes. Mind Lab Pro's fully disclosed panel is the second-most practical for this purpose.
For adults who want maximum pre-purchase ingredient transparency: Mind Lab Pro is the clear choice — it is the only product in this comparison with all active ingredient dosages publicly disclosed alongside extract standardization details on key botanical ingredients. Buyers can compare every ingredient and dose to the research literature before purchasing.
For adults who prioritize lowest monthly cost: Neuriva at retail pricing offers the lowest cost-per-month among products with disclosed dosages. Memopezil at the 6-bottle price ($49/month) is competitive for a five-ingredient formula, though with the caveat that three of five dosages require physical label verification.
For adults focused specifically on Bacopa Monnieri at research-aligned doses: None of the products in this comparison fully satisfies this criterion at confirmed disclosed dosages. Mind Lab Pro discloses Bacopa at 150mg (24% bacosides), which is the most transparent but below the strongest research range. Memopezil discloses Bacopa at 200mg without standardization percentage. Memopryl and Neuriva either don't include Bacopa or don't disclose the dose. A buyer whose primary ingredient target is research-aligned Bacopa may find better options among products specifically formulated around this ingredient with 300-450mg at 45% bacosides disclosed.
For adults specifically evaluating the Memopezil product against these alternatives: Memopezil is a reasonable option for buyers who value the adaptogenic combination (Bacopa + Rhodiola + L-Theanine + Panax Ginseng) and are comfortable verifying the physical label for the three unconfirmed dosages before committing. The 60-day refund window with a 30-day minimum-use requirement provides some buyer protection. The “Natural Donepezil” marketing language should be understood as a marketing phrase, not a pharmacological claim. The BCAA inclusion at 540mg is an unconventional cognitive supplement addition — buyers focused strictly on nootropic ingredients may find more straightforward formulas elsewhere. For the full Memopezil product audit, see the Memopezil review.
For deeper understanding of the ingredients shared across these products, see the Bacopa Monnieri research overview and the cognitive supplement safety guide. For context on the biological mechanism these supplements target, see how acetylcholine affects memory.
Disclaimer: This article is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Individual results vary. This article does not contain affiliate links. Verify current pricing on each brand's official website before purchasing, as prices may have changed since publication.
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