Alpha GPC (L-Alpha Glycerylphosphorylcholine)
| Product Name | L-Alpha-Glycerophosphoryl Choline |
| Other Name | alpha-GPC, choline alfoscerate, sn-glycero-3-phosphocholine |
| CAS Number | 28319-77-9 |
| Molecular Formula | C8H20NO6P |
| Molecular Weight | 257.223 |
| Specifications | 50%, 85%,99% |
MOQ: Flexible
Origin: China
Packaging: 25kg Fiber Drum
Lead Time: 1–7 Business Days
Accepted Payment terms: T/T, L/C, PayPal
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What is Alpha GPC?
Alpha GPC (L-Alpha Glycerylphosphorylcholine) is a naturally occurring choline-containing phospholipid that serves as an efficient precursor to acetylcholine, one of the most important neurotransmitters involved in memory, learning, focus, and cognitive function.
Known for its exceptional bioavailability, Alpha GPC can rapidly cross the blood-brain barrier, making it one of the most effective forms of choline supplementation available today. As a result, Alpha GPC has become a popular ingredient in nootropic formulas, sports nutrition products, cognitive support supplements, and healthy aging formulations.
Top Benefits of Alpha GPC
1. Supports Memory
Memory is one of the most studied areas of Alpha GPC research.
Acetylcholine plays a crucial role in memory formation and retrieval.
By supporting acetylcholine synthesis, Alpha GPC may help maintain healthy memory performance.
2. Enhances Focus and Mental Clarity
Many users report increased concentration and reduced mental fatigue when using Alpha GPC.
This is one reason why Alpha GPC is commonly found in nootropic stacks designed for productivity and mental performance.
3. Supports Learning Capacity
Learning and information retention depend heavily on healthy cholinergic function.
Alpha GPC provides a direct source of choline that can support the neurological pathways involved in learning.
4. Promotes Brain Health
Alpha GPC may support healthy neuronal communication and contribute to the maintenance of cell membrane structure.
This makes it a valuable ingredient in brain health supplements.
5. Supports Athletic Performance
Alpha GPC is increasingly used in sports nutrition products.
Research suggests that Alpha GPC supplementation may help support:
- Power output
- Explosive strength
- Neuromuscular performance
- Exercise performance
Because acetylcholine is involved in muscle contraction, Alpha GPC has become a popular ingredient among athletes and fitness enthusiasts.
How Does Alpha GPC Work?

The primary mechanism of Alpha GPC involves increasing acetylcholine production.
Acetylcholine is a neurotransmitter responsible for:
- Memory encoding
- Information processing
- Attention
- Focus
- Learning ability
- Muscle contraction
When Alpha GPC is consumed, it releases free choline that can be converted into acetylcholine within the brain.
Higher acetylcholine levels may contribute to improved cognitive performance and neurological function.
Additionally, Alpha GPC provides glycerophosphate, which may help support neuronal membrane health.
Alpha GPC vs Other Choline Sources
Alpha GPC vs Citicoline (CDP-Choline)
Both ingredients are widely used in cognitive health products.
Alpha GPC:
- Higher choline concentration
- Rapid acetylcholine support
- Popular in sports nutrition
Citicoline:
- Supports phospholipid synthesis
- Common in cognitive health supplements
- May support long-term brain function
Alpha GPC vs Choline Bitartrate
Alpha GPC generally offers superior bioavailability.
Advantages include:
- Better absorption
- Efficient blood-brain barrier penetration
- Greater neurological activity
- This is why premium nootropic products often prefer Alpha GPC over Choline Bitartrate.
Alpha GPC vs Phosphatidylserine (PS)
Both Alpha GPC and Phosphatidylserine (PS) are widely used in cognitive health supplements, but they support brain function through different mechanisms.
| Feature | Alpha GPC | Phosphatidylserine (PS) |
|---|---|---|
| Primary Role | Choline donor | Cell membrane phospholipid |
| Main Benefit | Focus, memory, learning | Brain health and cognitive aging |
| Supports Acetylcholine Production | Yes | No |
| Mental Focus | Excellent | Good |
| Memory Support | Excellent | Excellent |
| Athletic Performance Support | Yes | Limited |
| Healthy Aging Support | Good | Excellent |
| Stress Support | Limited | Better |
| Bioavailability | Very High | High |
Alpha GPC vs Huperzine A
Alpha GPC and Huperzine A are two popular ingredients commonly found in nootropic and cognitive support supplements. Although both are associated with memory, focus, and learning, they work through different mechanisms.
| Feature | Alpha GPC | Huperzine A |
|---|---|---|
| Ingredient Type | Choline compound | Plant-derived alkaloid |
| Primary Function | Increases acetylcholine production | Reduces acetylcholine breakdown |
| Memory Support | Excellent | Excellent |
| Focus & Concentration | Excellent | Excellent |
| Learning Support | Strong | Strong |
| Mechanism of Action | Choline donor | Acetylcholinesterase inhibitor |
| Sports Performance Support | Yes | Limited |
| Nootropic Applications | Very Common | Very Common |
| Long-Term Brain Health | Strong | Supportive |
Alpha GPC Applications

Nootropic Supplements
One of the largest application categories.
Common combinations include:
- Alpha GPC + Lion’s Mane
- Alpha GPC + Bacopa Monnieri
- Alpha GPC + L-Theanine
- Alpha GPC + Citicoline
Brain Health Formulas
Used in products targeting:
- Memory support
- Mental performance
- Cognitive wellness
- Healthy aging
Sports Nutrition
Alpha GPC is frequently incorporated into:
- Pre-workout supplements
- Performance formulas
- Cognitive energy products
Functional Beverages
As demand for brain-boosting beverages grows, Alpha GPC is increasingly used in:
- Nootropic drinks
- Focus beverages
- Energy formulations
Frequently Asked Questions
Is Alpha GPC natural?
Yes. Alpha GPC naturally occurs in the body and can also be derived for use in dietary supplements.
Is Alpha GPC a nootropic?
Alpha GPC is commonly classified as a nootropic ingredient because it supports cognitive performance and acetylcholine production.
Can Alpha GPC cross the blood-brain barrier?
Yes. This is one of the primary advantages of Alpha GPC compared with many other choline sources.
What supplements contain Alpha GPC?
Alpha GPC is commonly found in:
- Brain health supplements
- Nootropic products
- Memory formulas
- Sports nutrition products
- Healthy aging supplements
| Technical Data Sheet | ||
| Product and Batch Information | ||
| Product Name: | L-Alpha-Glycerophosphoryl Choline | |
| Country of Origin: | P.R. China | |
| CAS No.: | 28319-77-9 | |
| Molecular Formular: | C8H20NO6P | |
| Molecular Weight: | 257 | |
| Manufacture Date: | Nov 29, 2024. | |
| Item | Specification | Test Method |
| Active Ingredeints | ||
| Assay(%,On Dried Base) | 98.5%~102.0% | HPLC |
| Physical Control | ||
| Appearance | Fine Powder with highly Hygroscopic | Visual |
| Color | White to light yellow | Visual |
| Odor | Neutral | Organoleptic |
| Identification | The R value of the sample and STD should be same. | TLC |
| Bulk Density(g/cc) | 0.9-1.08 | USP |
| Specification Rotation[a]25D | -2.4 to -2.95 | USP |
| Solubility(H2O,10%W/W) | Clear | Visual |
| Color of Solution | NMT Y7 | USP |
| Loss on Drying | 2.0% Max | USP |
| Ph | 5.0-7.0 | USP |
| Heavy metals | NMT10PPM | CPh |
| Sulfate(SO4) | NMT 0.020% | CPh |
| Iron(Fe) | NMT10PPM | CPh |
| Chloride(Cl) | NMT 0.020% | CPh |
| Solvent Residual | Meeting USP Standard | GC |
| G.P.E. | NMT0.2% | HPLC-USP |
| Glycerophosric Acid | NMT0.2% | HPLC-USP |
| Packing and Storage | ||
| Packing | Pack in paper-drums and a Aluminum foil lined-bags inside. 25Kg/Drum | |
| Storage | Store in a well-closed container away from moisture and direct sunlight. | |
| Shelf Life | 2 years if sealed and stored properly. | |




