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Phosphatidylserine 51446-62-9 Powder
Time：2026-10-30Phosphatidylserine (PS) is a phospholipid supplement for adults experiencing age-related memory decline, mental fatigue, or high stress, designed to support cognitive function by improving cell membrane integrity and neurotransmitter signaling.
Core Selling Points
≥20% PS content verified by HPLC – Each 100 mg serving delivers 20 mg of pure phosphatidylserine, matching the dosage used in peer-reviewed human trials for memory support.Non-GMO soybean-derived PS, allergen-controlled – Provides a plant-based source suitable for vegetarians while avoiding the bovine-brain-derived PS found in some older supplements, which carries prion safety concerns.
Particle size ≤600 μm – Fine powder ensures consistent mixing and rapid dispersion in liquids or capsules, improving absorption consistency compared to coarse granules.
Peroxide value ≤5 mEq/kg – Low oxidation level preserves fatty acid stability, preventing rancidity and maintaining efficacy through the stated 24-month shelf life.
Batch-level heavy metal testing (lead ≤0.5 mg/kg, arsenic ≤0.3 mg/kg) – Third-party lab results available per lot, meeting EU and US supplement safety thresholds.
Detailed Specifications
| Parameter | Value | Notes |
|---|---|---|
| Product name | Phosphatidylserine powder | DT-Phosphatidylserine |
| Brand | Lixing | Manufacturer of record |
| Core category | Nootropic / cognitive support ingredient | Not a medical drug |
| Source | Non-GMO soy lecithin | Enzymatically converted to PS |
| Assay (HPLC) | ≥20% phosphatidylserine | Remaining lipids: PC, PE, PI |
| Particle size | 100% pass 600 μm sieve | Bulk density 0.4–0.6 g/mL |
| Peroxide value | ≤5 mEq/kg | Freshness indicator |
| Loss on drying | ≤2.0% | Water content |
| Heavy metals | Pb ≤0.5 mg/kg, As ≤0.3 mg/kg | Third-party tested per batch |
| Microbiological limits | TPC ≤1000 CFU/g, yeast/mold ≤100 CFU/g | Meets USP<2021> |
| Serving suggestion | 100–300 mg/day | Equivalent to 20–60 mg PS per day |
| Storage | Sealed, cool, dry (<25°C) | Avoid sunlight |
| Shelf life | 24 months from manufacture date | Shelf-stable with original packaging |
Suitable Use Cases
Office workers aged 40–60 – Taking 100 mg PS daily in the morning helps maintain focus during multi-hour meetings and reduces post-lunch mental fog.Students during exam periods – Combined with a high-protein breakfast, 200 mg PS supports recall speed for memorization-heavy subjects like law or medicine.
Athletes on high-intensity training schedules – 300 mg PS post-exercise assists cortisol regulation, helping recovery and next-day training readiness.
Adults with chronic stress – 200 mg PS before a stressful workday moderates perceived stress and maintains evening sleep quality.
Older adults noticing word-finding difficulties – Long-term daily 100 mg PS supports verbal fluency and everyday memory for names and appointments.
Frequently Asked Questions
What does phosphatidylserine do for the brain?
Phosphatidylserine maintains cell membrane fluidity in neurons, supporting neurotransmitter release and signal transmission. Clinical studies show modest benefits for memory recall and processing speed in older adults.
Is 20% phosphatidylserine concentration effective?
Yes. Human trials typically use 100 mg of soy-derived PS per day, and 20% assay means 100 mg of this powder contains the active 20 mg dose. Higher concentrations like 50% may require additional processing and are not necessary for efficacy.
Can vegans take this product?
Yes. It is derived from non-GMO soybean lecithin, containing no animal ingredients. However, if you encapsulate it, confirm the capsule shell is plant-based.
What is the difference between soy PS and sunflower PS?
Both are plant sources. Soy PS has a longer safety history and more clinical data. Sunflower PS avoids soy allergens but often requires more processing. Soy PS is generally more cost-effective.
How long does it take to see cognitive improvements?
Some users report improved mental clarity within 2 weeks, but controlled trials measure significant memory benefits after 6–12 weeks of continuous daily intake at 100–300 mg.
Can I take phosphatidylserine with coffee or other supplements?
Yes. PS is not a stimulant. It pairs well with caffeine (for focus), omega-3s (for cell membrane support), and B vitamins (for energy metabolism). Avoid taking with blood thinners unless under medical supervision.
Does this product require refrigeration?
No. As a dry powder with low peroxide value, store below 25°C in a sealed container. Refrigeration may extend freshness after opening but is not mandatory.
Differentiated Positioning
Compared to ordinary PS powders that use mixed soybean extract with 5–10% assay or animal-derived sources, this Lixing-grade product offers a guaranteed 20% HPLC-verified PS concentration, strict heavy metal and microbial control, and oxidation monitoring for long-term stability. While many competitors emphasize "high purity" without quantitative supporting data, this product provides reproducible batch-level specifications suitable for manufacturers who require exact ingredient dosing. It is particularly appropriate for dietary supplement brands targeting memory support formulas, stress recovery blends, and aging-population nutrition products that need a plant-based, clinically referenced ingredient with documented quality parameters.
