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Phosphatidylserine supports memory and cognitive function
Time：2026-10-09This ingredient powder is a non-GMO, sunflower-derived phosphatidylserine product with a minimum 50% PS content, designed for supplement manufacturers formulating products to support memory and cognitive function in aging adults.
Core Selling Points
PS content ≥50.0% (HPLC) — Provides accurate dosage per finished product, reducing overproduction losses and simplifying label claims.Sunflower-derived, soy-free — Suitable for vegan, allergen-controlled, and clean-label supplement lines without GMO concerns.
D50 particle size 120 µm ± 10 µm — Produces uniform blends with excipients and stable capsule or tablet fills.
Heavy metals within USP limits — Lead ≤1.0 mg/kg, arsenic ≤1.0 mg/kg, cadmium ≤1.0 mg/kg, mercury ≤0.1 mg/kg; supports international regulatory review.
Peroxide value ≤5.0 meq/kg — Maintains oxidative stability during storage, protecting oil-based softgel formulas from rancidity.
Detailed Parameters
| Parameter | Value | Notes |
|---|---|---|
| Appearance | Light yellow to white powder | Visual inspection; no visible clumps |
| Phosphatidylserine (PS) content | ≥50.0% | Determined by HPLC; batch COA |
| Source | Non-GMO sunflower lecithin | Soy-free; vegan |
| Other phospholipids | Phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol | Naturally present; possibly phospholipid profile |
| Tapped bulk density | 0.45–0.55 g/cm³ | Suitable for capsule filling and tableting |
| Particle size (D50) | 120 µm ± 10 µm | Laser diffraction method |
| Lead (Pb) | ≤1.0 mg/kg | ICP-MS per batch |
| Arsenic (As) | ≤1.0 mg/kg | ICP-MS per batch |
| Cadmium (Cd) | ≤1.0 mg/kg | ICP-MS per batch |
| Mercury (Hg) | ≤0.1 mg/kg | ICP-MS per batch |
| Total aerobic microbial count | ≤1,000 CFU/g | USP<61>method |
| Total yeast and mold count | ≤100 CFU/g | USP<62>method |
| E. coli | Negative in 1 g | USP<62>method |
| Salmonella | Absent in 25 g | USP<62>method |
| Peroxide value | ≤5.0 meq/kg | Oxidation stability measurement |
| Shelf life | 24 months | Sealed original container at ≤25°C |
| Quality compliance | cGMP; ISO 22000 | Facility certified by independent auditors |
Suitable Use Cases
Memory -support capsules for adults 50+ — Manufacturers can formulate daily capsules containing 100–200 mg PS with precise fill weights and minimal excipient addition.Functional beverage powders — The powder disperses in water at 20°C without lumps, allowing easy incorporation into flavored drink mixes.
Brain-health softgels — Being lipophilic, PS blends with medium-chain triglyceride oil in softgel melt; the strong peroxide value prevents off-flavor during encapsulation.
Vegan nootropic stacks — Plant-based supplement brands can use it as a soy-free, allergen-free cognitive/foundation ingredient.
Frequently Asked Questions
Q1. What is phosphatidylserine used for?
Phosphatidylserine supports memory, attention, and information processing speed. It is most often studied in aging adults with age-related cognitive decline, but also appears in sports supplements for mental focus.
Q2. Is this ingredient suitable for vegans?
Yes. This powder is extracted from sunflower lecithin and contains no animal-derived components. It also contains no soy, which simplifies allergen labeling.
Q3. How many milligrams of phosphatidylserine should a person take per day?
Most human trials use 100–300 mg daily for cognitive benefits. The exact dose depends on the finished format and required label claim; manufacturers should verify the final amount by testing.
Q4. Can this powder be used in capsules and tablets?
Yes. The D50 of 120 µm and tapped bulk density of 0.45–0.55 g/cm³ allow it to flow evenly with excipients and produce uniform capsule or tablet fills.
Q5. What is the difference between soybean-derived and sunflower-derived PS?
Both provide the same phosphatidylserine molecule, but sunflower-derived PS avoids soy allergens and GMO concerns. The phospholipid profile differs slightly, which can affect color or texture in final products.
Q6. How should phosphatidylserine powder be stored?
Store in a sealed container at or below 25°C, away from light and moisture. After opening, use within six months to maintain peroxide and microbial limits.
Q7. Does phosphatidylserine have any known drug interactions?
Some evidence suggests PS may interact with anticoagulants, sleep medications, or depression drugs. End users should consult a physician before combining PS with prescription medicines.
Q8. What certificates are available for quality verification?
A Certificate of Analysis (COA) accompanies each batch. It lists PS content, heavy metals, microbial results, and peroxide value measured via HPLC, ICP-MS, and USP methods.
Differentiating Summary
Unlike soy-derived lecithin powders or low -assay blends, this sunflower-based ingredient delivers a verified ≥50% PS concentration, clean allergen profile, and documented oxidative stability. It meets USP microbial and heavy-metal limits, giving manufacturers predictable dosing and fewer regulatory hurdles. The batch-level COA provides full traceability for quality teams, while the low peroxide value protects sensory quality in oil-based formulations. This ingredient is best suited for supplement companies that prioritize label accuracy, clean sourcing, and supply-chain transparency over lowest upfront cost.
