Ascorbic Acid Polypeptide

Product Description

Direct factory supply of high-purity Ascorbic Acid Polypeptide—a stabilized ascorbate-polypeptide conjugate manufactured under GMP-oriented fermentation and coupling protocols. Batch COA traceability supports cosmetic brands seeking aqueous-stable vitamin C actives.

Polypeptide anchoring shields ascorbic acid from premature oxidation while enabling gradual release and dermal delivery. The active modulates tyrosinase-related melanogenesis, neutralizes ROS from UV exposure, and supports procollagen signaling in fibroblast cultures (Typical).

Compared with free L-ascorbic acid, this peptide-bound form offers improved formula compatibility at pH 5.0–7.0—ideal for brightening serums, anti-fatigue essences, and daily antioxidant treatments without the instability of raw ascorbic acid powder.

Product Specification

• INCI Name: Ascorbyl Polypeptide
• CAS No.: N/A
• Sequence: N/A — not applicable (Typical)
• Molecular Formula: N/A — not applicable (Typical)
• Purity (HPLC): N/A — not applicable (Typical)
• Extraction Ratio: N/A — not applicable (Typical)
• Appearance: Pale yellow to light amber liquid (Typical)
• Solubility: Water-soluble; compatible with hydrophilic serums and gel bases (Typical)
• Suggested pH: 5.0–7.0 for optimal stability (Typical)
• Assay Method: Ascorbic acid content by iodometric titration or HPLC (Typical)
• Shelf Life: 18–24 months sealed, below 25°C (Typical)
• Standard Packaging: 1 kg, 5 kg, 25 kg sealed containers
• Storage: Protect from light and air; store sealed in cool, dry conditions
• Regulatory Status: INCI listed as Ascorbyl Polypeptide; indexed in CosIng
• Quality & Testing: Ascorbic acid assay, microbial limits, heavy metals Typical; COA per batch
• Compliance Note: For cosmetic use only; light-sensitive—use opaque or amber packaging in finished products

Key Benefits & Applications

This stabilized vitamin C polypeptide conjugate targets melanin pathway control, collagen cofactor activity, and photo-oxidative defense in brightening skincare.

• Tyrosinase pathway modulation for even tone and melanin control in brightening serums.
• Stable ascorbate antioxidant activity against UV-induced free radicals and photo-oxidative stress.
• Collagen matrix signaling support via vitamin C cofactor activity in firming anti-aging formulas.
• Photo-aging defense through ROS scavenging in daily UV-exposed skincare routines.
• Aqueous-compatible brightening suitable for pH-neutral essence and gel-cream systems.

Formulation Guidelines

Formulation guidance for aqueous-stable Ascorbic Acid Polypeptide in neutral-pH brightening and antioxidant systems.

• Recommended use level: 0.5–3% w/w in brightening serums and essences; up to 5% in spot treatments (Typical).
• Add during cool-down below 40°C to minimize heat-induced ascorbate degradation.
• Optimal pH window 5.0–7.0; avoid strong oxidizers, heavy metals, and high peroxide levels.
• Pre-dissolve in water phase; use amber or opaque packaging to limit light exposure.
• Compatible with glycols and hydro-alcoholic bases; patch-test with copper peptides at high use levels.
• Synergy: Tocopherol extends ascorbate half-life when co-formulated at 0.5–1% in lipid-enhanced brightening emulsions.