TruBrain
TruBrain is worth a look.
The only major nootropic in liquid-shot format. Co-founded by UCLA-trained neuroscientist Dr. Andrew Hill. Disclosed doses are mostly clinical, but the 2.6/5 Trustpilot score and aggressive autoship complaints are a real concern — read the cancellation terms before subscribing.
What it does
TruBrain is a liquid nootropic delivered in 1-oz drink shots, founded in 2012 in Santa Monica, California. The company was co-founded by Dr. Andrew Hill, a UCLA-trained cognitive neuroscientist, which is the brand's primary credibility anchor. The standard subscription is a 20-shot monthly box at roughly $75/month ($3.75 per shot). TruBrain also sells variants — Focus, Ketones, Mellow, Extra — plus a capsule version for users who prefer pills. The product is sold direct via trubrain.com only.
How it works
Each shot delivers a synergistic stack. Citicoline raises brain phosphatidylcholine and supports acetylcholine for focus. L-Tyrosine is a precursor to dopamine and norepinephrine, supporting performance under stress and sleep loss. L-Theanine paired with caffeine produces calm focus while smoothing the caffeine spike. Magnesium L-Threonate (Magtein) is the only magnesium form clinically shown to raise brain magnesium concentrations, supporting NMDA receptor function and synaptic plasticity. Centrophenoxine is a cholinergic compound related to DMAE that supports acetylcholine and clears lipofuscin from neurons.
What to expect
Onset is fast because of the liquid format — most users feel focus and energy within 15-30 minutes (faster than capsule competitors). The taste is divisive — multiple reviews describe it as thick and medicinal. Within 2-4 weeks: cumulative magnesium threonate and centrophenoxine benefits for memory and learning. Important warnings: (1) the autoship enrollment is aggressive and customer service is often slow to cancel — review the cancellation steps before the first charge; (2) most products carry no money-back guarantee; (3) the Trustpilot score of 2.6/5 is driven primarily by billing and cancellation complaints, not formula complaints.
Hero ingredients
- Citicoline250mg
- L-Tyrosine500mg
- L-Theanine200mg
- Magnesium Threonate
- Centrophenoxine250mg
Who it's for
- Only major liquid-format nootropic — best for pill-averse users
- Fast onset (15-30 min) versus capsule formats
- Clinically-trained co-founder (Dr. Andrew Hill, UCLA neuroscience)
Who should skip
- Trustpilot 2.6/5 — significant complaints about billing and customer service
- Aggressive autoship enrollment; cancellation reportedly difficult
- No money-back guarantee on most products
Dosing audit
| Ingredient | Label | Clinical | Status |
|---|---|---|---|
| Citicoline (CDP-Choline) | 250mg | 250mg | ✓ Pass |
| L-Tyrosine | 500mg | 300-500mg | ✓ Pass |
| L-Theanine | 200mg | 100-200mg | ✓ Pass |
| Magnesium (as Magtein L-Threonate) | 85mg elemental | 144mg elemental (2g Magtein) | ✕ Under |
| Centrophenoxine | 250mg | 250-1000mg | ✓ Pass |
| Caffeine | 100mg | 50-200mg | ✓ Pass |
Ingredient quality
Number and quality of evidence-graded ingredients. Trademarked extracts and standardized actives raise this score.
Dosing vs. clinical evidence
How many ingredients meet their clinical-trial dose. Underdosing flagship actives is the biggest score deduction.
Formula transparency
Full disclosure of every ingredient at its exact dose. Proprietary blends are scored as opaque.
Value for money
Cost per month relative to per-serving clinical doses delivered. Cheaper products with underdoses score lower.
Brand trust
Brand reputation, third-party testing, refund track record, and Trustpilot signal across multiple years.
How the score is computed
Each pillar is weighted by editorial importance. Weights are constant across every brand we audit — they're not adjusted to favour any particular product.
- Ingredient quality25%
- Dosing vs. clinical evidence30%
- Formula transparency20%
- Value for money15%
- Brand trust10%
0 verified reviews
We don't embed cherry-picked quotes here. Trustpilot is the canonical source — the score above feeds into our Trust pillar.
Read all 0 reviews on Trustpilot →Subscribe & save
- Lowest available price
- 0-day money-back guarantee
- Cancel anytime
- Free shipping
The fine print
Full refund if you're not satisfied. Brand-direct guarantee, not Amazon's.
We score every brand on cancellation friction. Auto-deduct from the Trust pillar if you have to email to cancel.
We earn a commission on the click. Scores are computed before commission lookup — read the methodology to verify.
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Health disclaimer
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Information on this page is for educational purposes only and is not medical advice. Consult a qualified healthcare professional before starting any supplement, especially if you are pregnant, nursing, taking medication, or have a medical condition. Individual results vary.