Dihexa vs Palmitoyl Dipeptide-6
Side-by-side comparison of key properties, dosing, and research.
Cognitive Enhancement
DihexaSkin & CosmeticAnti-Aging & Longevity
Palmitoyl Dipeptide-6- Summary
- Dihexa is a potent experimental oligopeptide derived from angiotensin IV that dramatically enhances synaptogenesis. Preclinical research shows cognitive enhancement orders of magnitude more potent than BDNF — it is considered one of the most powerful nootropic compounds in research, but has very limited human safety data.
- Palmitoyl Dipeptide-6 is a synthetic dipeptide (lysine-threonine) with a palmitoyl fatty acid tail, designed to penetrate the skin barrier and stimulate the extracellular matrix components essential for skin firmness. It activates fibronectin and type IV collagen synthesis, improving skin density and firmness particularly in mature or sagging skin.
- Half-Life
- Unknown (limited pharmacokinetic data)
- Not applicable (topical)
- Admin Route
- Oral, SubQ, Topical
- Topical
- Research
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- Typical Dose
- 5–10 mg
- 0.005–0.05% in formulation
- Frequency
- Daily
- Once or twice daily
- Key Benefits
- Dramatically increases synapse formation (potentially 10 million× more potent than BDNF in animal models)
- Enhances memory and learning
- May reverse cognitive decline
- Improves neuroplasticity and executive function
- Long-lasting cognitive benefits from short courses
- Potential therapeutic agent for Alzheimer's
- Increases skin firmness and density
- Stimulates fibronectin and collagen IV production
- Strengthens the dermal-epidermal junction
- Reduces skin sagging in mature skin
- Improves skin texture and smoothness
- Supports extracellular matrix integrity
- Side Effects
- Headache
- Irritability
- Brain fog during washout period
- Unknown long-term effects (insufficient data)
- Generally well-tolerated
- Rare mild skin irritation in sensitive individuals
- No known systemic effects at cosmetic concentrations
- Stacks With
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