The Science Behind eudopa™
How three clinically studied ingredients work together to support your brain’s natural performance.
Why One Supplement Can Support So Many Things
You might have seen that eudopa is formulated to support focus, memory, mental clarity, mental stamina, stress resilience, and long-term brain health.
That is a lot of claims. And when something markets a wide range of benefits—especially a supplement—it is normal to be skeptical. We think healthy skepticism is a good thing.
So how is it possible that one formula could help with all of these?
The key idea is this: these are not always separate benefits. They are often different results of the same underlying improvement.
Slow Internet
Downloads lag. Apps buffer. Video calls freeze. Everything suffers.
Fast Internet
Downloads fly. Apps respond. Calls are crisp. Everything improves.
Think of it like your internet connection. If someone told you one thing could improve your download speeds, make apps load faster, reduce buffering, and fix video call lag—it might sound suspicious. But if that one thing was a faster internet connection, it makes sense instantly. Those are not four separate fixes. They are downstream effects of improving the same foundation.
Your brain works the same way.
Focus, memory, mental clarity, stamina, and stress resilience are not isolated abilities with completely separate causes. They are built on deeper biological foundations—especially how well your brain cells function and communicate with each other.
Improve that foundation, and you often improve the things that depend on it.
The Foundation — How Brain Cells Communicate
Almost everything you think, feel, or do depends on brain cells working together. And that requires communication.
Your brain’s main information-carrying cells—neurons—talk to each other by sending signals. Billions of them, coordinating electrical and chemical messages every second. Remembering a name, concentrating on a task, even reading these words right now: all of it depends on this signaling.
This signaling depends on two basics:
Healthy Cell Membranes
The cell membrane is the outer boundary of every brain cell. It controls what goes in and out, and its structure directly affects how well signals fire. Healthy membranes let neurons generate and regulate electrical signals efficiently.
Neurotransmitter Support
Neurotransmitters like acetylcholine carry signals between neurons. The brain needs raw materials and energy to produce them reliably. Without adequate building blocks, chemical messaging slows down.
The ingredients in eudopa were chosen specifically to support these two foundations.
The Three Ingredients
Citicoline (CDP-Choline)
500 mg per servingWhat it is
Citicoline is a naturally occurring compound found in every cell of your body. It is one of the most researched forms of choline available and is used as a prescription cognitive aid in parts of Europe and Asia.
What it does
Citicoline serves two important roles in the brain. First, it provides choline, which the brain uses to produce acetylcholine—a neurotransmitter critical for memory, attention, and learning. Second, it provides cytidine, which converts to uridine and supports the synthesis of phosphatidylcholine, a key component of brain cell membranes.
In other words: Citicoline supports both of the foundations described above—neurotransmitter production and cell membrane health.
Key research
In a randomized, double-blind, placebo-controlled study, healthy adults taking 500 mg of citicoline daily for 12 weeks showed significant improvements in episodic memory and overall memory performance compared to placebo [1]. A review of multiple trials found consistent benefits for memory and behaviour across both healthy adults and those with age-related cognitive decline [2][3].
Why 500 mg
This is the dose used in the Nakazaki et al. (2021) study that demonstrated cognitive benefits in healthy adults over 12 weeks. Most clinical trials showing benefit use between 250–500 mg daily. We chose the upper end of this range to provide the strongest supported dose.
Phosphatidylserine (PS)
100 mg per servingWhat it is
Phosphatidylserine is a phospholipid—a type of fat molecule—that makes up a significant portion of brain cell membranes. It is found naturally in food (organ meats, soybeans, white beans) but in relatively small amounts.
What it does
PS plays a structural role in keeping brain cell membranes fluid and flexible, which is essential for efficient signal transmission between neurons. It also influences the release and activity of neurotransmitters including dopamine, serotonin, and acetylcholine. Additionally, PS has been shown to help regulate the body’s cortisol response to stress.
Key research
A meta-analysis found that PS supplementation significantly improved memory and cognitive function in older adults with cognitive complaints [4]. In studies on stress, PS supplementation at 100–300 mg per day blunted the cortisol response to physical and mental stressors [5][6]. The FDA has issued a qualified health claim stating that PS “may reduce the risk of cognitive dysfunction in the elderly.”
Why 100 mg
Studies showing cognitive and stress-related benefits used doses of 100–300 mg daily. We chose 100 mg because eudopa pairs PS with citicoline, which independently supports the same cell membrane and neurotransmitter pathways. This allows for a synergistic effect at a dose that is well-supported in the research and keeps the capsule count manageable at two per day.
Wild Blueberry Extract (Anthocyanins)
250 mg per servingWhat it is
Wild blueberry extract is standardized for anthocyanins—the dark-pigmented plant compounds responsible for the deep blue and purple colors in berries. Anthocyanins are among the most studied polyphenols for brain health.
What it does
Anthocyanins cross the blood-brain barrier and accumulate in regions associated with memory and learning. They support the brain in three main ways: (1) they act as antioxidants, helping to protect brain cells from oxidative stress; (2) they support healthy blood flow to the brain by promoting the production of nitric oxide in blood vessel walls; and (3) they have been shown to support signaling pathways involved in neuroplasticity—the brain’s ability to adapt and form new connections.
Key research
A 12-week randomized controlled trial in older adults found that daily supplementation with wild blueberry concentrate improved brain blood flow and working memory performance [7]. A systematic review of 11 human studies concluded that blueberry supplementation consistently improved memory in both older adults and children [8]. Long-term observational data from the Nurses’ Health Study found that higher anthocyanin intake was associated with slower rates of cognitive decline over time [9].
Why 250 mg
Clinical trials showing cognitive benefits used doses ranging from 200–500 mg of blueberry extract daily. Our dose of 250 mg delivers a meaningful amount of anthocyanins within the range shown to be effective, while keeping the total capsule size practical.
How They Work Together
Many brain supplements throw 10 or 15 ingredients into a capsule at small doses and hope something sticks. We took a different approach.
eudopa contains only three ingredients, each at a clinically relevant dose, chosen because they support the brain through complementary mechanisms:
Citicoline
Builds
Supplies the raw materials for neurotransmitter production and membrane building.
Phosphatidylserine
Maintains
Maintains the structural integrity and fluidity of brain cell membranes.
Wild Blueberry
Protects
Protects brain cells from oxidative damage and supports healthy blood flow to the brain.
Think of it this way: citicoline builds the infrastructure, phosphatidylserine maintains the hardware, and blueberry extract protects the system and keeps the supply lines running. Together, they address the core requirements for healthy brain cell function and communication.
This is also why eudopa does not contain caffeine or stimulants. We are not trying to artificially force a short-term boost. The goal is to give your brain the nutritional building blocks it needs to perform at its natural best—and to sustain that performance over time.
Your eudopa Timeline — What to Expect
Every brain is different, and individual results will vary depending on factors like your baseline nutrition, sleep quality, stress levels, and overall health. That said, here is a general timeline of what many users experience based on how the ingredients work:
Week 1–2: Laying the Groundwork
During the first two weeks, the ingredients are building up in your system. Citicoline begins providing the raw materials for acetylcholine production and cell membrane support. PS starts integrating into brain cell membranes. Anthocyanins begin accumulating in brain tissue.
Tip: Take your two capsules consistently at the same time each day, ideally with a meal for best absorption.
Week 3–4: Early Benefits Emerge
By this point, neurotransmitter support from citicoline is becoming more consistent, and PS has had time to meaningfully integrate into cell membranes. Blood flow improvements from anthocyanins may also be contributing.
Month 2: Noticeable Cognitive Improvements
This is where the clinical research suggests measurable changes begin to appear. The Nakazaki (2021) citicoline study ran for 12 weeks, with benefits detected as early as 4–8 weeks into supplementation.
Month 3+: Sustained & Compounding Benefits
The long-term benefits of all three ingredients are where eudopa really differentiates itself from stimulant-based supplements. Citicoline continues supporting membrane synthesis. PS continues optimizing neurotransmitter function. Anthocyanins continue their antioxidant and blood flow support, with potential neuroprotective effects accumulating over time.
Important: eudopa is designed for sustained daily use. Like any nutritional approach, the benefits depend on consistency. If you stop taking it, the effects will gradually diminish as the nutrient support declines.
Quality & Testing
Made in Canada
Manufactured in a facility that follows Good Manufacturing Practices (GMP).
Third-Party Tested
Every batch is verified by an independent lab for purity, potency, and contaminants. What is on the label is what is in the capsule.
Only Three Ingredients
Clinically studied doses. No proprietary blends, no hidden doses, no filler ingredients marketed as “bonus.” You can see exactly what you are getting.
No Caffeine or Stimulants
eudopa supports your brain’s natural function without artificial energy spikes or crashes.
30-Day Money-Back Guarantee
If eudopa is not the right fit, you can return it for a full refund.
References
View all references
- Nakazaki E, et al. (2021). Citicoline and memory function in healthy older adults: a randomized, double-blind, placebo-controlled clinical trial. J Nutr. 151(8):2153–2160. PubMed →
- Fioravanti M, Yanagi M. (2005). Cytidinediphosphocholine (CDP-choline) for cognitive and behavioural disturbances associated with chronic cerebral disorders in the elderly. Cochrane Database Syst Rev. (2):CD000269. PubMed →
- Secades JJ. (2019). Citicoline in the treatment of cognitive impairment. J Neurol Exp Neurosci. 5(1):14–26. View article →
- Kang EY, et al. (2022). Effect of phosphatidylserine on cognitive function in the elderly: a systematic review and meta-analysis. Korean J Food Sci Technol. 54(1):52–58. View article →
- Starks MA, et al. (2008). The effects of phosphatidylserine on endocrine response to moderate intensity exercise. J Int Soc Sports Nutr. 5:11. PubMed →
- Baumeister J, et al. (2008). Influence of phosphatidylserine on cognitive performance and cortical activity after induced stress. Nutr Neurosci. 11(3):103-110. PubMed →
- Bowtell JL, et al. (2017). Enhanced task-related brain activation and resting perfusion in healthy older adults after chronic blueberry supplementation. Appl Physiol Nutr Metab. 42(7):773-779. PubMed →
- Travica N, et al. (2020). The effect of blueberry interventions on cognitive performance and mood: a systematic review of randomized controlled trials. Brain Behav Immun. 85:96–105. PubMed →
- Devore EE, et al. (2012). Dietary intakes of berries and flavonoids in relation to cognitive decline. Ann Neurol. 72(1):135-143. PubMed →
Support your brain with three clinically studied ingredients.
No caffeine. No proprietary blends. No guesswork.
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