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High purity Phosphatidylserine Powder Wholesale
Time：2026-10-15Lixing brand Phosphatidylserine (PS20) is a sunflower-derived phospholipid raw material for supplement manufacturers and contract formulators who need an allergen-free, batch-consistent cognitive health ingredient with certified purity and full documentation.
Core Selling Points
20.0% HPLC-verified phosphatidylserine content — each batch is independently tested using high-performance liquid chromatography, so a 100 mg serving delivers exactly 20 mg of active PS without requiring overage calculations in finished labels.
100% non-GMO sunflower lecithin source — contains zero soy protein residues and no hexane residue, enabling clean-label claims and safe use in products aimed at soy-allergic consumers.
Stable in oil-based carriers — the phospholipid profile of this PS20 grade remains homogenous in sunflower oil and MCT oil suspensions, permitting direct softgel filling without added surfactants or antioxidants.
Elemental impurities within USP-NF<2232>limits — lead ≤1.0 mg/kg, arsenic ≤1.0 mg/kg, mercury ≤0.1 mg/kg, tested by ICP-MS; finished products formulated with this ingredient meet US, EU, and ASEAN heavy-metal regulatory thresholds.
24-month shelf life — accelerated stability studies at 40°C / 75% relative humidity show potency retention above 97% at 12 months and above 95% at 24 months in sealed containers at 25°C.
Technical Specification Table
| Parameter | Value | Supplementary Note |
|---|---|---|
| Phosphatidylserine content | ≥20.0% | HPLC method, per lot COA |
| Source | Sunflower lecithin | Non-GMO, soy-free |
| CAS number | 51430-18-1 | Phosphatidylserine |
| Appearance | Off-white fine powder | No visible agglomerates |
| Loss on drying | ≤2.0% | 105°C for 4 hours |
| Lead (Pb) | ≤1.0 mg/kg | ICP-MS, USP-NF<2232> |
| Arsenic (As) | ≤1.0 mg/kg | ICP-MS, USP-NF<2232> |
| Cadmium (Cd) | ≤1.0 mg/kg | ICP-MS, USP-NF<2232> |
| Mercury (Hg) | ≤0.1 mg/kg | ICP-MS, USP-NF<2232> |
| Total plate count | ≤1,000 CFU/g | AOAC 990.12 |
| Yeast & mold | ≤100 CFU/g | AOAC 997.02 |
| Escherichia coli | Negative in 10 g | FDA-BAM |
| Salmonella | Negative in 25 g | FDA-BAM |
| Particle size | 95% through 80 mesh | Sieve analysis, 180 µm |
| Residual solvents | Meets USP-NF<467> | Hexane not detected |
| Bulk density | 0.35–0.50 g/mL | Tapped density method |
| Packaging | 1 kg foil bag / 25 kg fiber drum | Nitrogen-flushed |
| Shelf life | 24 months | Stored sealed under 25°C |
| Minimum order quantity | 25 kg | Smaller trial lots on request |
Applicable Scenarios
Adult memory supplement formulation — A brand developing a cognitive softgel capsule uses 100 mg of PS20 per serving to support information processing and memory recall in healthy adults aged 35–55, as described in peer-reviewed clinical evaluations.
Sports nutrition stress-control blend — A sports nutrition manufacturer formulates a post-training recovery powder containing 200 mg of PS20 to address exercise-induced cortisol elevation in endurance athletes.
Aging-care private label program — A private label company produces a "senior focus" capsule combining 120 mg PS20, 250 mg alpha-GPC, and B vitamins for consumers over 55 who seek non-prescription cognitive maintenance formulas.
Export-ready gummy and beverage line — A gummy manufacturer disperses PS20 powder at 5% w/w in a pectin-based gel with citric acid flavoring, achieving stable suspension without altering the final pH range of 3.5–4.5.
Raw material distribution and repacking — An ingredient trading company imports 25 kg drums and repacks into 1 kg nitrogen-flushed foil bags for regional dietary supplement and functional food manufacturers in the EU and Southeast Asia.
Common Questions
What is the difference between soy-derived and sunflower-derived phosphatidylserine?Soy-derived PS is produced from soy lecithin and is less expensive, but it contains residual soy proteins that can trigger allergic reactions. Sunflower-derived PS is hexane-free, verified non-GMO, and safer for allergen-controlled or clean-label products.
What dosage of phosphatidylserine is commonly used in supplements?Clinical studies use between 100 mg and 400 mg daily for cognitive outcomes. A 100 mg single serving is common for maintenance products, while high-strength formulas use 200 mg to 300 mg delivered in two capsules or softgels per day.
What does the "20" mean in PS20?The "20" indicates that the powder contains 20.0% active phosphatidylserine measured by HPLC. The remaining 80.0% consists of other phospholipids such as phosphatidylcholine and phosphatidylethanolamine naturally present in the sunflower lecithin matrix.
Can phosphatidylserine powder be used in gummies or beverages?Yes. PS20 can be dispersed in water-based systems when premixed with gum arabic or maltodextrin at a 1:1 ratio. It is also compatible with oil-based softgel fill formulations at concentrations up to 30% w/w.
What is the shelf life and recommended storage condition for PS20?The shelf life is 24 months from the manufacturing date. Store it in a sealed, nitrogen-flushed container below 25°C, protected from direct sunlight and humidity. Opened drums should be re-sealed immediately after use.
Is the Lixing PS20 ingredient supplied with third-party laboratory reports?Yes, every production lot is accompanied by a Certificate of Analysis dated and signed by an ISO 17025-accredited laboratory. The COA includes the full HPLC purity profile, elemental impurity results, and microbiological testing data.
What regulatory standards apply to this phosphatidylserine ingredient?The ingredient complies with the USP-NF monograph for Phosphatidylserine, USP-NF<2232>elemental impurity limits, and EU pesticide residue requirements. Sunflower-derived PS has also been evaluated in FDA GRAS notices for use in conventional foods and beverages.
What is the minimum order quantity for wholesale orders?The standard minimum order quantity is 25 kg in a fiber drum. For product development and pilot batches, 1 kg trial lots are available with full COA documentation, and the price is quoted separately from bulk pricing.
Differentiation Summary
Generic soy-derived PS powders require careful allergen management, often use solvent extraction, and lack batch-level heavy-metal data. This sunflower PS20 grade uses a CO2 extraction process that leaves no residual solvents, follows the USP-NF Phosphatidylserine monograph, and is supplied by Lixing with ISO 17025-accredited COAs for every lot. It is the appropriate choice for manufacturers that prioritize allergen-free labels, EU/US regulatory compliance, and documented batch consistency.
