Spermidine vs Syn-Ake
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & LongevityCognitive Enhancement
SpermidineSkin & CosmeticAnti-Aging & Longevity
Syn-Ake- Summary
- Spermidine is a naturally occurring polyamine found in all living cells, with exceptionally high concentrations in wheat germ, aged cheese, and human sperm. It is the most studied autophagy-inducing dietary compound, shown to extend lifespan across multiple species and reduce cardiovascular and cognitive aging.
- Syn-Ake is a synthetic tripeptide that mimics waglerin-1, a peptide found in the venom of the Temple viper (Tropidolaemus wagleri). It acts as a reversible antagonist of muscular nicotinic acetylcholine receptors, temporarily reducing facial muscle contraction and smoothing dynamic wrinkles. Often called a 'synthetic Botox' in cosmetic marketing.
- Half-Life
- ~30–60 minutes, but gut bacteria produce it continuously; supplementation raises tissue levels over weeks
- Not applicable (topical; effect duration hours)
- Admin Route
- Oral
- Topical
- Research
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- Typical Dose
- 1–5 mg
- 0.01–0.1% (4–8 mg/g in clinical studies)
- Frequency
- Once daily
- Twice daily
- Key Benefits
- Induces autophagy — cellular self-cleaning
- Extends lifespan in yeast, flies, worms, and mice
- Reduces cardiovascular aging and arterial stiffness
- Reduces all-cause mortality (human epidemiological data)
- Neuroprotective: reduces amyloid and tau pathology
- Promotes hair growth (anagen phase activation)
- Reduces age-related immune decline
- Improves memory in aging models
- Reduces depth of dynamic wrinkles and expression lines
- Reversible muscle-relaxing effect on facial muscles
- Smooths forehead lines, crow's feet, and frown lines
- Non-invasive alternative to injectable neurotoxins
- Rapid onset relative to collagen-stimulating peptides
- Well-studied in in vitro and clinical cosmetic trials
- Side Effects
- Generally very well tolerated
- Rare: mild GI discomfort at high doses
- May temporarily reduce some gut bacteria species
- Rare: headache at initiation
- Generally very well-tolerated topically
- Rare skin sensitivity or contact dermatitis
- Theoretical neuromuscular effects at systemic doses (not relevant topically)
- Stacks With
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