Comparison
Phosphatidylserine (PS) vs Omega-3 (DHA/EPA)
Phosphatidylserine (PS)
Phospholipid concentrated in brain cell membranes. Supports membrane fluidity and stress response.
Omega-3 (DHA/EPA)
Essential fatty acids critical for brain structure and function. DHA comprises ~40% of brain polyunsaturated fatty acids.
| Field | Phosphatidylserine (PS) | Omega-3 (DHA/EPA) |
|---|---|---|
| Category | cholinergic | neuroprotective |
| Dose range | 100–300mg | 1000–3000mg |
| Half-life | 12h | 24h |
| Onset | — | — |
| Evidence | EVIDENCEB | EVIDENCEA |
| Safety | ●●●●● | ●●●●● |
| Legal (US) | USOTC | USOTC |
| PubMed refs | 280 | 5200 |
The comparison in plain English
Auto-generated from dataPhosphatidylserine (PS) and Omega-3 (DHA/EPA) are both in the cholinergic (cholinergic) and neuroprotective respectively. Phosphatidylserine (PS) Phospholipid concentrated in brain cell membranes. Omega-3 (DHA/EPA) Essential fatty acids critical for brain structure and function.
Bottom line
Phosphatidylserine (PS) (evidence B, safety 5/5) has a stronger evidence base than Omega-3 (DHA/EPA) (evidence A, safety 5/5). Phosphatidylserine (PS) has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Phosphatidylserine (PS) if
Phosphatidylserine (PS) is the better fit when your goal aligns with its mechanism (A structural phospholipid that comprises 10-20% of neuronal cell membranes, particularly concentrated in the inner leaflet where it supports receptor function and membrane fluidity) and the dose range (100–300mg) suits your protocol. Half-life is 12h.
Choose Omega-3 (DHA/EPA) if
Omega-3 (DHA/EPA) is the better fit when your goal aligns with its mechanism (DHA (docosahexaenoic acid) is a structural component of neuronal cell membranes, maintaining fluidity and supporting receptor function) and the dose range (1000–3000mg) suits your protocol. Half-life is 24h.