L-Tyrosine vs Dihexa
Side-by-side comparison of L-Tyrosine and Dihexa: mechanism, half-life, dose range, safety profile, and vendor pricing.
Price snapshot
L-Tyrosine
Dihexa
L-Tyrosine
L-Tyrosine is a non-essential aromatic amino acid and the direct biosynthetic precursor to the catecholamine neurotransmitters dopamine, norepinephrine, and epinephrine. Unlike "essential" amino acids that must be…
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Full L-Tyrosine profileDihexa
Dihexa is a synthetic peptide analogue of the angiotensin IV metabolite LVV-hemorphin-7, developed at Washington State University. It is considered one of the most potent cognitive enhancers ever tested in animal models…
Lowest listed price: $79.99 across 3 listings
Full Dihexa profileSide-by-side comparison
| Attribute | L-Tyrosine | Dihexa |
|---|---|---|
| Category | Nootropics | Nootropics |
| Research Stage | Preclinical | Preclinical |
| Mechanism of Action | L-Tyrosine's mechanism of action as a cognitive performance enhancer reflects its role as the rate-limiting substrate for catecholamine biosynthesis in the brain. The catecholamine synthesis pathway begins with phenylalanine (from dietary protein), which is… | Dihexa is a small-molecule analog derived from angiotensin IV (AngIV). It retains the Tyr-Ile core of Nle1-AngIV, with an N-terminal hexanoic acid cap and a C-terminal 6-aminohexanoic amide that give it metabolic stability and blood-brain-barrier penetration.… |
| Half-Life | — | Not characterized in humans. Dihexa was engineered for metabolic stability (resistant to plasma and enzymatic degradation) and blood-brain-barrier penetration; in preclinical work its central procognitive effects appear to outlast its plasma presence. |
| Typical Dose Range | — | 5 to 40 mg oral per day (anecdotal range; no established human dose) |
| Dosing Frequency | — | Once daily (oral), typically in the morning |
| Administration | — | Oral, Intranasal, Subcutaneous |
| Side Effects | L-Tyrosine has a highly favorable safety profile as a non-essential dietary amino acid that is normally consumed in gram quantities daily from food. Supplemental tyrosine at typical cognitive-performance doses of 500-2000 mg (or even the higher research doses… | No controlled human safety data. Anecdotal user reports include headache, fatigue, irritability or anxiety, insomnia, and vivid dreams, usually at higher doses. The most serious concern is theoretical rather than reported: because dihexa acts on the HGF/c-Met… |
| Molecular Weight | — | 504.7 g/mol |
| Common Vial Sizes | — | 50mg, 100mg |
Price tracking
L-Tyrosine: potential benefits
- No structured benefit list published.
Dihexa: potential benefits
- Synaptogenesis: formation of new dendritic spines and functional synapses (preclinical)
- Memory and spatial-learning support in rodent models
- Potential research application in Alzheimer's and other neurodegenerative disease models
- HGF/c-Met and PI3K/Akt-linked neuroplasticity (mechanism proposed; key paper retracted)
Frequently asked
What's the difference between L-Tyrosine and Dihexa?
L-Tyrosine is a nootropics that l-tyrosine's mechanism of action as a cognitive performance enhancer reflects its role as the rate-limiting substrate for catecholamine biosynthesis in the brain. the catecholamine…. Dihexa is a nootropics that dihexa is a small-molecule analog derived from angiotensin iv (angiv). it retains the tyr-ile core of nle1-angiv, with an n-terminal hexanoic acid cap and a c-terminal…. The two differ in mechanism, half-life (not reported vs Not characterized in humans. Dihexa was engineered for metabolic stability (resistant to plasma and enzymatic degradation) and blood-brain-barrier penetration; in preclinical work its central procognitive effects appear to outlast its plasma presence.), and typical dose range.
Which has the longer half-life, L-Tyrosine or Dihexa?
L-Tyrosine has a half-life of not reported. Dihexa has a half-life of Not characterized in humans. Dihexa was engineered for metabolic stability (resistant to plasma and enzymatic degradation) and blood-brain-barrier penetration; in preclinical work its central procognitive effects appear to outlast its plasma presence.. Longer half-lives generally mean less frequent dosing but slower on/off kinetics.
Can you stack L-Tyrosine and Dihexa?
Stacking depends on mechanism overlap, safety profile, and goals. L-Tyrosine and Dihexa should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds.
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