| HS Code | 548765 |
| Inci Name | Sodium Ascorbyl Phosphate |
| Chemical Formula | C6H6Na3O9P |
| Molecular Weight | 322.06 g/mol |
| Appearance | White to almost white crystalline powder |
| Solubility In Water | Freely soluble |
| Stability | Stable in aqueous solution and light |
| Ph Range | 7.0 - 8.5 (1% solution) |
| Function | Antioxidant, skin brightening agent |
| Odor | Odorless |
| Melting Point | Decomposes above 190°C |
As an accredited Sodium Ascorbyl Phosphate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sodium Ascorbyl Phosphate is packaged in a 1 kg sealed aluminum foil bag with clear labeling, batch number, and safety information. |
| Shipping | Sodium Ascorbyl Phosphate is shipped in tightly sealed, light-resistant containers to prevent degradation. It is typically packed in fiber drums or HDPE containers lined with food-grade plastic bags. The chemical should be stored and transported in a cool, dry place away from moisture, direct sunlight, and incompatible substances. |
| Storage | Sodium Ascorbyl Phosphate should be stored in a tightly closed container, protected from light, heat, and moisture. Keep it in a cool, dry place, ideally below 25°C (77°F). Avoid contact with strong oxidizing agents and acids. Store away from incompatible substances and ensure proper ventilation in the storage area to prevent degradation and maintain product stability. |
Sodium Ascorbyl Phosphate serves as a stable, water-soluble vitamin C derivative that supports multiple downstream sectors requiring controlled antioxidant delivery, precise pH tolerance, and batch-to-batch consistency. Our manufacturing expertise ensures uninterrupted supply for large-scale, regulatory-driven production processes across personal care, pharmaceuticals, food fortification, veterinary, and coating industries.
This material provides formulators with an advanced option for high-stability vitamin C activity in anti-aging creams, whitening serums, and sunscreen products. Developers utilize its stable profile to address oxidative discolorations and photoprotection without degrading active content under light or heat. Direct addition occurs during the water phase of emulsification, often requiring chelation and neutralization steps to prevent pro-oxidant formation. In sunscreen applications, process engineers must carefully control interactions with UV filters to preserve both stability and clarity of the final product.
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Pharmaceutical and dermatological preparations incorporate this raw material to ensure efficient antioxidant delivery in prescription ointments and gels targeting skin disorders complicated by oxidative stress. Formulators select it for its skin penetration and high stability against hydrolysis, which reduces risk of off-odor or color change during shelf life. Manufacturing lines dose it immediately prior to homogenization, with nitrogen blanketing to limit air exposure, especially in hydrophilic gels or semi-solid matrices. Compatibility with excipients and pH adjustment remain critical for product registration and release testing.
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Sodium Ascorbyl Phosphate offers food processors a non-acidic alternative to conventional ascorbic acid for vitamin C enrichment of clear beverages, dairy substitutes, and meal replacement powders. Its resistance to color, flavor, and aroma degradation under light or heat makes it suitable for high-throughput blending or direct dosing in continuous lines. QA teams validate addition through real-time monitoring of vitamin C recovery and ensure compliance with permitted dosage. The ingredient disperses during pre-mixing, followed by downstream pasteurization or UHT treatment in beverage operations.
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Animal nutrition specialists utilize this form of vitamin C to help maintain stability and activity in pelleted feed formulations and wet veterinary diets. Its improved stability under high humidity and temperature preserves vitamin content through extrusion and storage. Feed mill operators add the ingredient during the cool-down phase of pelleting or through post-extrusion spraying to minimize degradation. Dosing strategies adjust for targeted species and feeding regimes. Full traceability, batch release, and labeling in line with local standards are mandated for commercial livestock and companion animal feeds.
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In the technical coatings sector, formulators include this ingredient as a secondary antioxidant to control metal-catalyzed oxidation and extend shelf life of waterborne acrylic and polyurethane dispersions. Its presence helps suppress yellowing, loss of gloss, and film-forming property deterioration, especially in zero-VOC and eco-certified paints. Material enters at the pigment dispersion stage or directly into final let-down, following pH and viscosity checks. Finished product validation involves accelerated weathering and storage stability testing in accordance with paint and coating industry norms.
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Competitive Sodium Ascorbyl Phosphate prices that fit your budget—flexible terms and customized quotes for every order.
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Most people in the cosmetic and personal care industry recognize the name vitamin C, but fewer people understand why certain forms outperform others in real-world products. As a chemical manufacturer, I have spent years working with different vitamin C derivatives, including ascorbic acid, magnesium ascorbyl phosphate, and sodium ascorbyl phosphate. In our facility, the shift towards sodium ascorbyl phosphate stands on more than theory—it comes from practical experience facing the hurdles of large-scale production, storage, and stability in finished products.
Our production focuses on a pharmaceutical/cosmetic grade Sodium Ascorbyl Phosphate, SAP, with a purity above 99%. This high standard is not for show; it is the level that brings reliability batch after batch for global brands looking for a stable vitamin C. We find that consistent mesh size and controlled moisture levels help avoid caking, discoloration, and handling loss, which downstream users appreciate when preparing large batches for creams, serums, and gels.
SAP stands apart from raw ascorbic acid in more ways than marketing. The simple sodium salt of ascorbic acid, stabilized with phosphate, resists oxidation better than direct ascorbic acid. Anyone who has stored ascorbic acid at room temperature for more than a few weeks knows the frustration—brown powder, pungent odors, significant potency loss. In contrast, SAP stays white, odorless, and easy to dissolve with proper stirring and mild heating, often with no significant degradation for months in a sealed drum. In the hands of manufacturers, this cuts down on waste and recalls.
We adhere to tight specifications, relying on advanced filtration, drying, and packaging technologies to ensure low heavy metals, low microbiological counts, and no residual solvents. Batch records document process steps in fine detail: from ascorbic acid phosphorylation using precise temperature control, to neutralization with high-purity sodium. Labs confirm not just purity, but also check for specific impurities such as dehydroascorbic acid and free phosphate. Customers further scrutinize our Certificate of Analysis, but years of audit feedback consistently trace quality issues—if they arise—to inadequate knowledge of SAP’s unique behavior in a formula rather than flaws in our production.
Large buyers often approach us with skepticism, having seen waxy, yellowed, or poor-flowing SAP from other suppliers. Open dialogue after initial samples makes the difference—they soon realize the benefit of sourcing from a plant that makes the compound itself, not one that rebrands another facility’s bulk powder. Direct from the production floor, we send out samples that match the final full-scale lots. Our uniform, free-flowing SAP passes rigorous bulk and tapped density tests, which minimizes dosing variance in automated production lines.
SAP’s reputation in personal care rests on its improved stability profile. Certain claims, such as “20 times the stability of ascorbic acid in solution,” may get repeated often, but our own shelf-life and stress testing show a more nuanced story. Stability varies by pH, solvent system, and presence of metal ions or UV exposure. As a manufacturer, we understand the pitfalls of assuming SAP is indestructible; it is resistant to air and light, but trace metals in formula water cause decomposition unless chelators are present. Our technical support often focuses on helping brands combine SAP with stabilizing agents to extend shelf life further.
In terms of use, customers blend SAP into skin creams, serums, hair tonics, oral care gels, and anti-acne products. SAP performs not only as an antioxidant, but also as a brightening and anti-inflammatory ingredient in finished cosmetic products. Skin irritation issues nearly disappear compared with ascorbic acid, a frequent complaint with direct vitamin C. Formulators prefer SAP for high-pH products, such as cleansing gels or toners, where unmodified ascorbic acid becomes unstable or irritating. For water-based serums at a neutral or slightly alkaline pH, SAP dissolves evenly, resisting crystals or oxidation tinge.
Looking at SAP, ascorbic acid, and magnesium ascorbyl phosphate (MAP), the differences seem subtle to the untrained eye. On the shop floor, the story grows clearer. Ascorbic acid powder oxidizes rapidly—many cosmetic plants report product darkening within weeks of filling. MAP resists oxidation too, but at a price: it requires careful pH management and precise blending, sometimes forming slurries or separating in a water base. SAP balances ease of use and stability, dissolving at a wide pH range while remaining highly resistant to light and air.
We have seen brands pivot from MAP to SAP after months of product separation in warehouse heat. The sodium derivative remains less sensitive to water hardness and ionic strength, posing fewer headaches for international customers with variable water quality. Our manufacturing lines handle SAP without sticky residue, off-odors, or unusual dust, reducing line cleaning consumption and lot-to-lot contamination risk.
SAP’s chemistry favors the needs of modern skin care—gentle antioxidant activity that persists even in less-than-ideal environments. Finished formulas with SAP rarely turn yellow or lose potency. Our field visits to customer factories reaffirm this point, as operators can measure actual remaining SAP months after production, often with over 90% of label claims confirmed. Uncoated ascorbic acid, by comparison, famously delivers far lower retained potency unless filled and stored under nitrogen, a complexity small and mid-size brands rarely adopt.
Formulators benefit from rapid SAP dissolution, which is true even in simple cold mixing setups. This allows small batch producers and contract fillers to blend SAP without multi-stage heating, vacuum, or inert gas lines. Our sales teams regularly coach engineers at manufacturing sites about solubility, showing quick mixing in standard stainless vessels and rapid integration into bulk gels, lotions, or aqueous serums.
We also field ongoing technical questions about SAP’s interactions with other cosmetic actives. Niacinamide blends smoothly with SAP, reducing the risk of unwanted nitrosation seen in older formulas. Retinol and SAP can share space in a serum when emulsified under the right conditions, allowing for more versatile product design—trials at numerous brands confirm the absence of color shifts or breakage found with ascorbate salts combined with retinoids.
SAP holds up well under normal packaging conditions. Exposure to high heat, repeated UV, or persistent oxygen can start to break it down, so we steer customers towards opaque, airless containers for longevity. Laboratory stress tests demonstrate SAP withstanding 40°C for up to three months with minimal degradation, greatly simplifying warehouse storage and product shipping overseas. Finished goods rarely require special temperature control, eliminating cold chain logistics costs associated with “active” ascorbic acid stock.
Some customers fear SAP’s cost compared with ascorbic acid. In our experience, the true cost difference narrows over time. Finished products with pure ascorbic acid demand more packaging, more production controls, and faster turnaround to avoid spoilage. SAP’s shelf-stable nature slashes waste: we find customers rarely discard product due to degradation, reducing their ultimate spend per active molecule. For long-haul shipments or products sitting for months at retail, SAP stands unmatched among vitamin C alternatives.
From a sourcing perspective, large volume buyers prefer manufacturer-direct contracts for SAP. Bulk deliveries, real-time support, and batch traceability stem from working with a true source, not a broker or repacker. We offer full documentation: material origin, certificates, and analysis sheets produced in our own labs, not just relabeled PDFs from an unknown primary manufacturer. This transparency builds trust, a vital resource for skin care and oral care brands that cannot afford ingredient risk.
Manufacturers have a responsibility to ensure product safety. We rely on SAP’s safety record, established across North America, Europe, and Asia. Multiple regulatory bodies have identified SAP as a non-sensitizing, non-irritating raw material at levels typical in consumer products. Tolerability exceeds that of ascorbic acid and other ascorbyl derivatives. In our own QA records, no customer has reported a significant adverse event linked directly to our SAP, a fact further supported by public databases and post-market surveillance by global cosmetic industry associations.
Feedback from ingredient buyers and formulators guided improvements over time. Early adopters requested SAP with finer particle size for rapid blending, leading us to upgrade milling and screening equipment. Concerns about trace heavy metals prompted further investment in incoming raw inspections, ensuring every lot meets strict cosmetic and pharmaceutical standards. We now routinely exceed the published regulatory benchmarks for contaminants and microbial presence, confirmed by third-party testing at random intervals.
Responsible chemical production includes minimizing waste and solvent disposal. Our SAP manufacturing line operates on a closed-loop system, reclaiming over 95% of water used during filtration and drying. Off-gases remain minimal due to phosphate and ascorbate process chemistry. No persistent toxins are left in the waste stream, unlike some other vitamin C derivatives. Finished SAP passes aquatic safety and ingredient biodegradability screening, allowing downstream customers to claim environmental stewardship with confidence.
We respond to increasing demand for sustainable packaging by offering SAP in recyclable, lined fiber drums, reducing reliance on high-density polyethylene. Large industrial users appreciate bulk pack options that reduce container waste, while smaller formulators can opt for smaller unit sizes to suit their precise needs. Transparent documentation accompanies each shipment, clarifying not just purity and safety, but the steps taken to limit environmental impact from start to finish.
Our role in the supply chain extends further than production alone. We collaborate with university research groups, dermatologists, and in-house teams developing new personal care, oral care, and skin health products. SAP makes its mark through predictable behavior, empowering creative product concepts based on science, not guesswork.
Recent clinical trials around the world explore SAP for anti-aging, anti-acne, and brightening claims. These studies often detect improvements in skin tone and reduced inflammation, with SAP as a stable, active component. We share anonymized batch records and manufacturing certifications with lead researchers, allowing honest assessment of ingredient origins. Brands gain a marketing edge by showcasing traceable, consistent, real-world product quality, backed by a supply chain open to audits and regular scrutiny.
Chemical manufacturing for the cosmetic and personal care world changes rapidly. SAP exemplifies how manufacturers can lift quality, reliability, and confidence above old commodity standards. Decades of work with SAP teach hard lessons—nothing can substitute for genuine production knowledge, transparent supply, and technical partnership between manufacturer and formulator. SAP will not solve every formulating problem, but it gives customers and their brands a significant edge. It resists real-world degradation, lessens formulation headaches, and lets chemists focus on product performance rather than troubleshooting.
Our facility remains committed to listening; ongoing feedback loops from customers help push innovation in production, documentation, and packaging. With each ton of SAP shipped, we contribute to a global movement toward consistent, safe, and effective cosmetic actives. This experience, repeated at scale for many years, gives us confidence to stand behind SAP—an ingredient with concrete benefits for real-world use in the hands of skilled formulators.
