Bulk Alpha-GPC Powder (50% & 99% HPLC) | GMP Factory Direct Supply
In my 28 years of formulating nutraceuticals and consulting for global OEM/ODM facilities, I have seen highly promising nootropic formulas fail on the production line for one simple reason: poorly sourced Alpha-GPC that turned into a hygroscopic paste.
L-Alpha Glycerylphosphorylcholine (Alpha-GPC) is arguably the most bioavailable cholinergic precursor on the market. However, its natural hydrophilic structure makes handling it a massive engineering challenge. At AIHerba, we do not just trade powder. Our GMP-certified biological engineering facility in Shaanxi, China, utilizes advanced enzymatic deacylation to produce highly stabilized, free-flowing Alpha-GPC tailored for your specific manufacturing matrix.
Whether you need a 50% granulated grade for high-speed hard-shell encapsulation or a 99% pure grade for clear functional beverages, we provide full batch-to-batch traceability, backed by HPLC verification and rigorous third-party testing via SGS or Eurofins.
1. Physicochemical Specifications: Formulating with Precision
Generic COAs often hide crucial handling parameters. To ensure your manufacturing run is flawless, please review the precise engineering data of our Alpha-GPC specs below.
Standardized Assay & Handling Parameters
| Parameter | 50% Granulated Alpha-GPC (Capsules/Tablets) | 99% Pure Alpha-GPC (Liquid/RTD) |
| CAS Number | 28319-77-9 | 28319-77-9 |
| Assay (HPLC) | ≥ 50.0% | ≥ 99.0% |
| Appearance | White to off-white free-flowing powder | White crystalline powder (Highly Hygroscopic) |
| Excipient Carrier | Calcium Hydrogen Phosphate (DCP) / Silicon Dioxide | None (100% Active Compound) |
| Bulk Density | 0.50 – 0.70 g/mL (Optimized for encapsulation) | N/A (Liquid adaptation recommended) |
| Moisture Content | ≤ 2.0% | ≤ 2.0% (Vacuum sealed) |
| Solubility | Insoluble carriers present | 100% Water Soluble (Clear solution) |
2. Overcoming the Hygroscopicity Nightmare
The defining challenge of Alpha-GPC is its affinity for moisture. Exposure to relative humidity (RH) above 20% will turn 99% Alpha-GPC into a gel within minutes, destroying the batch.
The AIHerba Engineering Solution:
For solid dosage forms (capsules/tablets), our R&D team recommends our 50% Granulated Alpha-GPC. We precisely bind the active cholinergic molecule to an inert excipient matrix (such as DCP or Silicon Dioxide). This creates a physical moisture barrier, yielding a powder with excellent flow properties that will not jam your automatic encapsulation equipment, even in standard manufacturing environments of up to 40% RH.
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3. Cellular Mechanism: The Premium Choline Source
(Note for R&D: AIHerba provides industrial raw materials only. Alpha-GPC functions biochemically, not medically.)
Unlike Choline Bitartrate, Alpha-GPC rapidly crosses the blood-brain barrier.
- Phospholipid Synthesis: It provides a direct supply of systemic glycerophosphate, supporting the structural integrity of cellular membranes.
- Cholinergic Neurotransmission: It acts as a highly efficient precursor to acetylcholine, the primary neurotransmitter involved in focus, learning, and muscle contraction pathways. This makes it an essential ingredient in cognitive support stacks and high-performance pre-workout formulations.
- Alt Text: HPLC chromatogram of AIHerba 99% Alpha-GPC showing no free amines
- Caption: Our rigorous HPLC testing ensures exact assay percentages and strictly limits the presence of volatile free amines to prevent fishy odors.
4. Supply Chain Control: Clean-Label & Safety Compliance
Sourcing from AIHerba means sourcing directly from the factory. We employ strict solvent residue limits and clean-label practices across our entire AIHerba GMP Advanced Extraction Facility.
- Hexane-Free Extraction: We strictly utilize water and food-grade ethanol.
- Free Amine Control: Poorly synthesized Alpha-GPC breaks down into free amines, causing a strong “fishy” odor. Our enzymatic deacylation process prevents this degradation.
- Heavy Metals & Microbials: Tested via ICP-MS to ensure Total Heavy Metals are < 10 ppm (Lead < 1 ppm). Products are steam-sterilized and 100% free from Ethylene Oxide (ETO).
- Soy-Free Options: For brands requiring non-GMO allergen-free labels, we offer custom extraction from Sunflower Lecithin.
To learn more about how we verify these parameters, review our comprehensive GMP Herbal Extract Quality Consistency System.
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Frequently Asked Questions (Formulator & Sourcing FAQ)
Q1: How do I calculate my label claim when using 50% Granulated Alpha-GPC?
A: If your required label claim is 300mg of active Alpha-GPC per capsule, you must formulate with 600mg of our 50% Granulated powder. The remaining 300mg serves as the stable excipient carrier (DCP or Silicon Dioxide).
Q2: Will 99% Alpha-GPC cause cloudiness in my functional beverage?
A: No. Our 99% pure Alpha-GPC is highly hydrophilic and 100% water-soluble. It will dissolve crystal clear without causing any turbidity or sedimentation in RTD formulations.
Q3: Is your Alpha-GPC synthesized from Soy or Sunflower?
A: Our standard commercial Alpha-GPC is derived from high-quality Non-GMO soy lecithin via biological enzymatic deacylation. However, we do manufacture a 100% Sunflower-derived Alpha-GPC specifically for brands requiring strict soy-free and allergen-free label claims.
Scientific References & Regulatory Guidelines
Transparency and scientific validation are critical for B2B procurement. Below are the regulatory and peer-reviewed mechanisms supporting Alpha-GPC.
1. Regulatory Approvals & Safety Status:
- U.S. FDA (Food and Drug Administration): Alpha-GPC (L-alpha-glycerylphosphorylcholine) is widely utilized in the US dietary supplement market and has received GRAS (Generally Recognized as Safe) affirmation under FDA notifications.
👉 Source:FDA GRAS Notice Inventory (GRN No. 419)
2. Peer-Reviewed Mechanisms (PubMed / NIH):
- Cholinergic Precursor Mechanism: A comprehensive pharmacological review demonstrating how Alpha-GPC efficiently crosses the blood-brain barrier and serves as a highly bioavailable precursor for acetylcholine synthesis.
👉 Reference: Traini et al., “Choline alphoscerate (alpha-GPC) an old drug with new pharmaceutical perspective.” Current Alzheimer Research, PubMed/NIH.PMID: 24156263
(Disclaimer: The scientific references provided are for R&D formulation and industrial procurement purposes only. AIHerba’s botanical and biochemical extracts are raw materials intended for B2B manufacturing and are not intended to diagnose, treat, cure, or prevent any medical disease.)
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Shaanxi Zhonghong Investment Technology Co., Ltd.
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