A water-soluble vitamin C derivative for antioxidant, brightening and blemish-prone skincare development.
Build water-based vitamin C concepts without the strongly acidic environment associated with pure L-ascorbic acid. SAP is supplied as a white powder for measured cosmetic formulation, from bench tests through commercial scale-up.
- Supports antioxidant skincare and daily environmental-stress defense concepts
- Helps formulators create brighter-, more even-looking tone claims
- Suitable for serums, gels, lotions, creams and other water-containing systems
- Practical paid small packs for formulation trials and iterative development
Product Specifications
|
Specification |
Product information |
|
Product name |
Sodium Ascorbyl Phosphate (SAP) Powder |
|
INCI |
Sodium Ascorbyl Phosphate [R1] |
|
CAS number |
66170-10-3 [R1–R2] |
|
Molecular formula |
C6H6Na3O9P [R2] |
|
Commercial form |
White powder |
|
Assay |
99% |
|
Formulation role |
Water-soluble vitamin C derivative; antioxidant active |
Key Benefits
Antioxidant Support for Modern Skincare: SAP is an antioxidant for serums and emulsions designed to support skin against everyday oxidative stress. It complements—not replaces—a sun-protection strategy. [R1, R3]
Brighter, More Even-Looking Tone: Choose SAP for radiance, dullness and uneven-looking tone concepts in water-based systems.
Smoother, Firmer-Looking Skin Concepts: Vitamin C biology supports age-care product development focused on smoother-looking texture and the appearance of fine lines. SAP allows formulators to explore those benefits in a derivative-based system without positioning the raw material as a guaranteed finished-product result.
Useful for Blemish-Prone Cosmetic Formulas: Human finished-formula studies have evaluated SAP in blemish-related applications. This supports cosmetic development for clearer-, calmer-looking skin while keeping product claims within cosmetic boundaries. [R6]
Why Formulators Choose SAP
SAP combines water solubility with a less acidic development window than pure L-ascorbic acid. It suits hydrating serums, gels or emulsions whose preservative, polymer or skin-feel strategy does not fit a very low-pH system. Stability still depends on pH, temperature, oxygen, trace metals, packaging and storage. [R4, R8]
Typical Applications
- Water-based antioxidant and radiance serums
- Brightening gels, essences and toners
- Daily facial lotions and night creams
- Blemish-prone skin serums and lightweight moisturizers
- Age-support emulsions for smoother-, firmer-looking skin concepts
- Environmental-stress skincare concepts, subject to finished-formula testing
Quick Formulation Guide
|
Parameter |
Typical formulation guidance |
|
Use level |
Begin at 0.2–3% for typical cosmetic development. [R3–R4] |
|
Solubility / phase |
Water-soluble. Pre-dissolve in purified water before adding to the batch. [R4] |
|
pH starting point |
Begin development around pH 6.0–7.0, then optimize for the complete system. [R4] |
|
Order of addition |
Add through a cool, late water-phase step after complete pre-dissolution. [R4] |
|
Stability controls |
Limit unnecessary heat and oxygen exposure; evaluate trace-metal control, headspace and light-protective packaging. [R4, R8] |
|
Compatibility |
Check emulsifier, electrolyte, polymer, preservative and active compatibility in the finished formula. Nonionic systems may be a useful starting point. [R4] |
Why Source From Us
- Start with samples scale to bulk orders – one supplier from trial to production: Validate with lab samples, then scale to commercial volumes – same quality, same team. No re-qualification, no project delays.
- Formulation support that actually helps – not just a data sheet: We give you hands-on guidance on solubility, temperature, pH, and compatibility. A real formulation partner, not a catalog.
- Reliable supply chain – consistent quality, on-time delivery, batch after batch: Own manufacturing facilities plus long-term partnerships with audited upstream producers ensure batch-to-batch consistency. Full documentation with every shipment. No "sample passes, bulk fails"
- Export-ready documentation – compliance, customs, cleared：Complete technical documentation packages – COA, MSDS, TDS, stability data – batch-specific and regulatory-ready. We handle the paperwork so your compliance and procurement teams can focus on formulation
Recommended Ingredient Pairings
|
Recommended ingredient |
Why it pairs well |
Product concept |
Compatibility note |
|
Adds barrier, tone and sebum-balance positioning in a similar moderate-pH design space. |
Daily brightening serum |
Confirm final pH, preservative system and sensory profile. |
|
|
Adds humectant hydration to balance an active-led antioxidant concept. |
Hydrating antioxidant gel serum |
SAP electrolytes may affect polymer viscosity; test the selected molecular-weight grade. |
|
|
Adds conditioning and comfort-focused support for daily-use formulas. |
Calming radiance lotion |
Validate pH, preservation and complete-formula stability. |
|
|
Tocopherol or Tocopheryl Acetate |
Extends the concept into the oil phase for a broader antioxidant story. |
Antioxidant face emulsion |
Requires an emulsion or suitable solubilization; do not assume automatic synergy. |
|
Disodium EDTA |
Supports trace-metal control in color- and oxidation-sensitive systems. |
Stability-focused serum or lotion |
Confirm regional use, level and compatibility with the whole formula. [R4] |
Research & References
- [R1] European Commission CosIng — Sodium Ascorbyl Phosphate
- [R2] PubChem — Sodium Ascorbyl Phosphate compound record
- [R3] Elmore (2005) — Final safety assessment of ascorbic acid and related salts
- [R4] Laboratorios GUINAMA — SAP technical data sheet
- [R6] Klock et al. — SAP in acne-related in vitro and in vivo research
- [R8] Dong et al. — Stability of SAP in water–glycerol mixtures
Request a Quote
Tell us your required quantity, destination country, and any documentation needs. We usually reply within 1 business day.