This page describes pharmacological agents that may have legal restrictions, side effects, and drug interactions in your jurisdiction. Information is for educational research only — consult a clinician before considering any compound.

High-risk compound

Surface here is educational only; do not use without medical supervision. Our editorial verdict is SKIP-FOR-NOW — current cost / risk / redundancy puts it below the line.

Browse

Synapsin

Emerging

Compounded intranasal blend of ginsenoside Rg3 + nicotinamide riboside (NR) — not Rg3 + ALCAR as this user's brief stated; the canonical…

Aliases (4)

Synapsin Nasal Spray · RG3 Nasal Spray · Rg3+NR · Ginsenoside-Rg3/Nicotinamide-Riboside compounded blend

TYPICAL DOSE

200–500 μg

Daily

ROUTE

Intranasal spray

Nasal spray

CYCLE

pharmacy guidance varies

Typical duration

STORAGE

2-6°C; protect from light

Refrigerated

Overview

What is Synapsin?

Synapsin is a proprietary intranasal formulation combining ginsenoside Rg3 (from Panax ginseng) and nicotinamide riboside (NR), developed in functional/integrative medicine for neurological repair and cognitive enhancement. Often paired with intranasal methylcobalamin or NAD+ in protocols.

Key Benefits

May support neuroinflammation reduction and brain repair (post-concussion, neurodegeneration protocols), enhance cognitive function and mental clarity, and improve mood and focus through dual NAD+ precursor and ginsenoside delivery directly to the CNS.

Mechanism of Action

Ginsenoside Rg3 modulates neuroinflammation, supports neuronal mitochondria, and shows neuroprotective effects via apoptosis modulation and BDNF upregulation. Nicotinamide riboside is converted to NAD+ intracellularly, supporting sirtuin activity and mitochondrial function. Intranasal delivery bypasses BBB limitations.

Peptide Interactions

cerebrolysin

Synergistic

overlapping neuroprotection thesis. Theoretical synergy (Cerebrolysin = neurotrophic mimetic; Synapsin = microglial + NAD+) but massive evidence asymmetry me…

alcar

Synergistic

both mitochondrial-leaning. ALCAR is already in V5 plan; combining with intranasal NR-containing Synapsin would over-saturate the NAD+/mitochondrial space wi…

semax / n-acetyl-semax-amidate

Synergistic

same delivery route (intranasal nose-to-brain) but different mechanism (BDNF mimetic vs anti-inflammatory). Class-mate compatibility, though combining 2–3 na…

nad-plus

Synergistic

family compounds — same NAD+ angle as NR component; redundant.

Quality Indicators

✓

Sterile pre-filled spray

Spray bottles should be sealed, sterile, and labeled with concentration.

Refrigeration required

Most intranasal peptides require fridge storage; a warm bottle suggests degraded peptide.

✗

Cloudy or discolored liquid

Cloudiness or color change indicates degradation or contamination.

What to Expect

Onset
minutes to ~30 min if anything is felt.
Peak
subtle — nothing like a stimulant or even a peptide like Selank.

Side Effects & Safety

Common (>10%): nasal stinging / irritation immediately after spray (Synapsin requires refrigeration; cold solution worsens this), occasional sneeze.
Less common (1–10%): mild headache, mild GI symptoms (some swallowed drug), nasal dryness.
Variant-specific: B12-containing formulations can cause insomnia / overstimulation if dosed late in the day.
Rare-serious: none documented in published literature; the absence of published safety data is itself a flag rather than reassurance.
Specific watch periods: none defined. Compounded products carry generic compounding-pharmacy risk (sterility, dose accuracy, batch-to-batch variability).
Compounding-quality risk: quality varies meaningfully across the dozens of US 503A pharmacies that offer it. No central QC.