Disclosure: MemoPryl is the product published by this site, and we may earn a commission if you buy through our links. To keep this fair, every claim about Brain C-13 is drawn from Zenith Labs' own published label and marketing, which can change over time — verify current details on the official source before buying. We did not run our own lab or efficacy tests.
Quick Answer
Neither MemoPryl nor Brain C-13 is clinically proven to improve memory or prevent cognitive decline. The honest trade-off:
- Brain C-13 (Zenith Labs) has the edge on formula breadth (~13 ingredients, including patented Cognizin citicoline) and on guarantee length (180 days vs 60).
- MemoPryl has the edge on label transparency (full disclosed doses vs a proprietary blend), on a simpler formula with fewer interaction concerns, and on marketing that is not built on a gimmick — Brain C-13 leans on an “Einstein brain chemistry” story that has no scientific basis.
At-a-glance comparison
| Factor | MemoPryl | Brain C-13 |
|---|---|---|
| Maker | MemoPryl Research | Zenith Labs |
| Active ingredients | 6, fully disclosed (Bacopa, Ginkgo, Lion’s Mane, L-Theanine, Phosphatidylserine, Rhodiola) | ~13 in a proprietary blend (incl. Cognizin citicoline, Bacopa, Phosphatidylserine, Huperzine-A, saffron, DMAE, Mucuna) |
| Full per-ingredient doses shown | Yes | No — proprietary blend |
| Finished-product clinical trial | No | No |
| Marketing basis | Ingredient research | “Einstein brain chemistry” narrative (no scientific basis) |
| Money-back guarantee | 60 days | 180 days |
| Where to buy | Online (official site) | Online (official site) |
| Approx. price | Bundle pricing online | ~$39–$49 / bottle, cheaper in bundles |
| Main safety caution | Ginkgo may interact with blood thinners | Huperzine-A, DMAE and Mucuna (L-DOPA) raise interaction potential |
How we compared them
We compare what is verifiable: the published ingredient information, the research behind those ingredients, the stated guarantee, and the safety profile. We do not assign efficacy “scores” out of 100, because neither company has the clinical data to justify them. Where Brain C-13 is genuinely better, we say so.
Brain C-13: broad formula, long guarantee, gimmicky story
Brain C-13 is a doctor-formulated capsule from Zenith Labs, made in a cGMP facility. Its strength is breadth: it combines roughly a dozen ingredients, including Cognizin citicoline (a patented form with some clinical research), phosphatidylserine, Bacopa, Huperzine-A, saffron, rosemary, DMAE and Mucuna pruriens. It also carries a standout 180-day money-back guarantee — three times longer than most competitors, which is a real advantage for cautious buyers.
Two honest caveats. First, the ingredients sit inside a proprietary blend, so the exact dose of each is not fully disclosed — a common transparency complaint. Second, the brand's marketing is built around “Einstein-like brain chemistry” and a “C-13” angle that has no scientific basis; it is a branding hook, not evidence. The broader ingredient list (Huperzine-A, DMAE, Mucuna as an L-DOPA source) also creates more room for drug interactions.
MemoPryl: fully disclosed label, simpler formula, no gimmick
MemoPryl uses a focused six-ingredient blend: Bacopa Monnieri, Ginkgo Biloba, Lion’s Mane, L-Theanine, Phosphatidylserine and Rhodiola Rosea, made in an FDA-registered, GMP-compliant U.S. facility. Two of those ingredients (Bacopa and phosphatidylserine) have the best individual research for memory and focus. Crucially, MemoPryl publishes its full label with each ingredient shown rather than hiding doses in a proprietary blend, and its marketing sticks to ingredient rationale instead of a celebrity-brain story. It includes a 60-day money-back guarantee.
The honest limits: like Brain C-13, the finished MemoPryl formula has not been clinically tested, it is sold online only, and because it contains Ginkgo Biloba it can interact with blood thinners — clear it with your doctor first.
Prefer a transparent label and a no-gimmick formula?
MemoPryl shows every ingredient and its dose, in one daily capsule made in an FDA-registered, GMP-compliant U.S. facility, with a 60-day money-back guarantee so you can judge the effect yourself.
Check MemoPryl Availability & Today’s Price →Dietary supplement. Not a treatment for any disease. Individual results vary.
The honest verdict
This one is closer than most. Choose Brain C-13 if your priorities are the widest ingredient list and the longest possible refund window, and the proprietary blend and marketing style don't bother you. Choose MemoPryl if you value seeing exactly what you're taking and at what dose, a simpler formula with fewer interaction risks, and marketing that doesn't lean on an “Einstein” gimmick. Both are unproven as finished products, so keep expectations realistic — and if memory changes are sudden, worsening, or affecting daily life, that is a reason to see a doctor, not to buy any supplement.
Frequently asked questions
Is MemoPryl or Brain C-13 clinically proven to improve memory?
Neither. Like almost all over-the-counter brain supplements, neither finished formula has been tested in its own published clinical trial. Several individual ingredients in both products (such as phosphatidylserine, Bacopa Monnieri and citicoline) have modest, mixed research, but ingredient studies are not proof that the finished product works.
What is the main difference between MemoPryl and Brain C-13?
Brain C-13 (by Zenith Labs) uses a broader, multi-ingredient blend — including patented Cognizin citicoline and saffron — and offers a longer 180-day money-back guarantee. MemoPryl uses a simpler six-ingredient formula but discloses its full label rather than using a proprietary blend, and its marketing does not rely on the “Einstein brain chemistry” narrative that Brain C-13 is built around.
Which has the longer money-back guarantee?
Brain C-13 does. Zenith Labs advertises a 180-day money-back guarantee, compared with MemoPryl's 60 days. If a long refund window is your priority, Brain C-13 wins on that single point.
Is Brain C-13's link to Albert Einstein real science?
No. Brain C-13's marketing frames the formula around “Einstein-like brain chemistry” and acetylcholine, but there is no scientific basis for a special “C-13” compound tied to Einstein's brain. Treat it as a branding hook, not evidence. MemoPryl's marketing does not use this kind of claim.
Which is safer to take?
Both are made in cGMP facilities and are generally well tolerated, but Brain C-13's longer ingredient list (including Huperzine-A, DMAE and Mucuna pruriens, an L-DOPA source) creates more potential for drug interactions. MemoPryl's main caution is Ginkgo Biloba with blood thinners. Either way, check with your doctor first if you take prescription medication.
Which should I choose?
If you want the broadest formula and the longest refund window, Brain C-13 has the edge. If you prefer a fully disclosed label, a simpler formula with fewer interaction concerns, and marketing without a gimmick, MemoPryl is the cleaner pick. Neither is a proven treatment, and persistent or worsening memory problems should be seen by a doctor.
Related comparisons & guides
Sources & References
- Zenith Labs — Brain C-13 official product and label information (manufacturer source). Guarantee and ingredient details per the brand's published materials.
- ConsumerLab — independent reviews of brain/memory supplement ingredients. consumerlab.com
- Pase MP, et al. (2012). “The cognitive-enhancing effects of Bacopa monnieri: a systematic review of randomized, controlled human clinical trials.” J Altern Complement Med, 18(7). PubMed
- Glade MJ, Smith K. (2015). “Phosphatidylserine and the human brain.” Nutrition, 31(6). PubMed
- Synoradzki K, Grieb P. (2019). “Citicoline: A Superior Form of Choline?” Nutrients, 11(7). PubMed