Yeast Polypeptides

Product Description

Direct factory supply of high-purity Yeast Polypeptides—the protein fraction isolated from Saccharomyces cerevisiae lysate with batch COA traceability. Controlled hydrolysis enriches low-molecular peptide chains for cosmetic aqueous systems.

Amino acids and oligopeptides from yeast fermentation support TEWL control, keratinocyte energy metabolism, and scavenging of ROS from UV and pollution exposure. The matrix forms a lightweight humectant film on stratum corneum (Typical).

Versus single synthetic peptides, this lysate-derived polypeptide complex delivers broad amino-acid coverage in one INCI—suited for fermentation essences, barrier serums, and anti-fatigue skincare targeting hydration and resilience.

Product Specification

• INCI Name: Saccharomyces Polypeptides
• CAS No.: 227024-35-3
• 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: Clear to pale amber liquid (Typical)
• Solubility: Fully soluble in water; compatible with hydro-alcoholic bases (Typical)
• Suggested pH: 4.5–7.0 in finished formulas (Typical)
• Assay Method: Total nitrogen / peptide content by Kjeldahl or UV (Typical)
• Shelf Life: 24 months sealed, 2–8°C (Typical)
• Standard Packaging: 1 kg, 5 kg, 25 kg food-grade drums
• Storage: Store sealed, away from light; avoid prolonged room-temperature exposure
• Regulatory Status: INCI listed as Saccharomyces Polypeptides; indexed in CosIng
• Quality & Testing: Microbial limits, heavy metals, peptide profile Typical; COA per batch
• Compliance Note: For cosmetic use only; not for food or injectable applications

Key Benefits & Applications

This Saccharomyces lysate polypeptide fraction supports hydration, oxidative defense, and barrier resilience in fermentation-forward skincare.

• Amino-rich humectancy and film-forming peptides for deep hydration in essences.
• Fermentation-derived antioxidant defense against urban and UV-induced oxidative stress.
• Keratinocyte turnover and cellular vitality support in fatigue-recovery skincare.
• Stratum corneum barrier conditioning in post-treatment repair formulations.
• Dermal matrix peptide signaling for firmness in anti-aging serum systems.

Formulation Guidelines

Typical use levels and process notes for Yeast Polypeptides in aqueous fermentation skincare lines.

• Recommended use level: 1–5% w/w in essences and serums; up to 8% in ampoules (Typical).
• Add during cool-down below 45°C to preserve heat-sensitive peptide fractions.
• Compatible pH window 4.5–7.0; avoid strong oxidizers and high-level strong acids in one pot.
• Water-soluble; pre-dilute in humectant phase before incorporation into emulsions.
• Stable with glycols and hydro-alcoholic bases; patch-test with strong chelators at high use levels.
• Synergy: Panthenol improves tolerance when co-formulated with yeast polypeptides at 1–3% in sensitive-skin fermentation toners.