Proanthocyanidins OPC High-purity Antioxidant Raw Material (CAS 4852-22-6 / 84929-27-1)
Product Name: Proanthocyanidins (OPC) High-purity Plant Antioxidant Raw Material
Alias: Oligomeric Proanthocyanidins, Grape Seed Proanthocyanidins, Natural Antioxidant Extract, Skin Brightening Procyanidin, Anti-aging Plant Polyphenol, Water-soluble OPC Powder
INCI Name: Vitis Vinifera (Grape) Seed Extract
CAS Number: 4852-22-6 / 84929-27-1
Molecular Formula: C30H26O12
Molecular Weight: 578.52
Effective Content: OPC ≥95% (HPLC Test)
Appearance: Reddish-brown Fine Powder, Slight Characteristic Plant Odor, Easily Soluble in Water and Ethanol, Aqueous Solution is Transparent Reddish-brown Without Precipitation
Grade: High-end Cosmetic Grade / High-activity Antioxidant Grade / Natural Plant Extract Grade / Sensitive Skin Adaptable Grade
MOQ: 1KG (Small batch trial order available, MOQ 100G)
Shelf Life: 24 Months (Sealed, Light-proof, Cool & Dry Environment Storage, Storage Temperature 2-8℃, Avoid High Temperature, Strong Light and Humid Environment, Prevent Oxidation and Deliquescence)
Proanthocyanidins, OPC, Grape Seed Extract, Cosmetic Grade Antioxidant, Natural Free Radical Scavenger, Skin Brightening Agent, Anti-aging Plant Extract, Water-soluble Polyphenol Raw Material, High-activity Skin Repair Ingredient
Proanthocyanidins OPC High-purity Antioxidant Raw Material (CAS 4852-22-6 / 84929-27-1)
Proanthocyanidins is a high-purity natural polyphenol active ingredient refined from high-quality grape seeds via low-temperature extraction, membrane separation, purification and freeze-drying technology.
It is known as one of the "most powerful natural antioxidants" in the skincare industry, with far superior free radical scavenging capacity than vitamin C and vitamin E.
Different from traditional synthetic antioxidant ingredients with irritating residues and single efficacy, and ordinary plant extracts with low purity and poor activity, our cosmetic-grade proanthocyanidins are dominated by oligomeric proanthocyanidins with high biological activity, featuring pure natural sources, no chemical residues, mild and skin-friendly properties.
It has a unique multi-dimensional skincare mechanism: firstly, it efficiently scavenges superoxide anion and hydroxyl free radicals in the skin, blocks lipid peroxidation, inhibits skin oxidative aging, and delays the generation of fine lines and sagging; secondly, it can inhibit melanin oxidation and deposition, lighten dull and yellow skin tone, brighten complexion, and improve uneven skin tone; thirdly, it repairs damaged skin barrier, enhances skin self-resistance, relieves redness and dryness caused by external irritation, and soothes sensitive skin.
In addition, proanthocyanidins have excellent water solubility and formula compatibility, can be perfectly compounded with hyaluronic acid, niacinamide, vitamin C, peptides and other active ingredients to form a synergistic efficacy system, significantly improve the antioxidant, brightening and anti-aging effects of the formula, and reduce the irritation of high-efficiency active ingredients.
The product has stable chemical properties, no discoloration, no deterioration and no activity loss during conventional processing and storage, non-sensitizing, non-toxic and harmless, free of heavy metal impurities, passed multiple skin safety tests, suitable for all skin types including sensitive skin, and is an indispensable core raw material for high-end natural antioxidant, brightening and anti-aging skincare products.
Key Benefits
• Super Strong Antioxidant, Anti-aging & Anti-oxidation Dual Protection: With ultra-high OPC purity ≥95%, it has powerful free radical scavenging ability, effectively blocks skin oxidative damage, inhibits collagen oxidative degradation, delays skin aging, reduces fine lines and sagging, and provides long-term anti-oxidation and anti-aging protection for the skin, with more stable and durable efficacy than ordinary antioxidant raw materials.
• Natural Brightening, Improve Dull & Uneven Skin Tone: Inhibits the oxidative polymerization of melanin, reduces melanin deposition, fades dull yellow and dull skin tone, improves rough and dark skin, makes skin translucent and bright, realizes natural skin brightening without whitening burden, and is suitable for long-term daily brightening skincare formulas.
• Barrier Repair & Sensitive Skin Soothing: Repairs damaged stratum corneum and skin barrier, enhances skin water-locking capacity and self-resistance, relieves skin redness, dryness and sensitivity caused by ultraviolet radiation, environmental pollution and external irritation, soothes fragile skin, and realizes antioxidant and soothing dual-effect care.
• Excellent Compatibility, Synergistic Efficacy Enhancement: Good water solubility and wide formula adaptability, can be freely compounded with moisturizing, brightening and anti-aging ingredients such as hyaluronic acid, niacinamide, VC and peptides, effectively synergize and amplify the efficacy of active ingredients, reduce formula irritation, and optimize product use effect and mildness.
• High Purity & High Stability, Easy Formula Debugging: Refined by advanced purification process, low impurity content and high active ingredient content, stable physical and chemical properties, no discoloration, precipitation or activity loss in conventional cosmetic processing environment, low formula adaptation threshold, convenient for industrial mass production.
• Pure Natural & Ultra-mild, Full Skin Adaptation: Pure natural grape seed plant extract, no synthetic additives, no heavy metals, non-toxic and non-irritating, non-sensitizing, passed sensitive skin safety test, suitable for sensitive skin, dry skin, oily skin, combination skin and mature skin, safe for long-term use.
Applications
• Antioxidant Skincare Series: Antioxidant serum, free radical scavenging essence, anti-oxidation toner, anti-aging moisturizing cream, anti-sugar and anti-oxidation lotion.
• Brightening & Whitening Series: Translucent brightening essence, dullness-removing facial mask, brightening skincare lotion, uniform tone repair cream.
• Sensitive Skin Soothing Series: Sensitive skin antioxidant repair milk, post-sun soothing repair essence, redness-relieving and barrier-repairing facial mask.
• Anti-aging Skincare Series: Mature skin anti-aging essence, firming anti-aging cream, fine line smoothing lotion, anti-oxidation anti-aging ampoule.
• Functional Mask Series: Antioxidant brightening mask, soothing repair mask, daily anti-oxidation maintenance mask.
• High-end Custom Skincare Series: Plant-based natural skincare products, salon-level antioxidant repair products, private label brightening anti-aging formulas.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Proanthocyanidins (OPC≥95%) | Compliant |
Appearance (25℃) | Reddish-brown Uniform Fine Powder | Reddish-brown Fine Powder, Uniform Texture |
OPC Effective Content | ≥95.0% | 96.2% |
Water Solubility (25℃) | Easily soluble in water, transparent solution without precipitation | Fully soluble, transparent reddish-brown solution |
pH Value (1% Aqueous Solution) | 4.5-6.5 | 5.3 |
Loss on Drying | ≤3.0% | 1.8% |
Heavy Metals (Pb) | ≤1ppm | ＜0.5ppm |
Antioxidant Activity | High free radical scavenging rate | Qualified |
Compatibility | Compatible with common cosmetic raw materials, no delamination or precipitation | Compliant |
Conclusion | Conforms to cosmetic grade enterprise standards and skin safety specifications | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the core advantage of grape seed proanthocyanidins compared with other antioxidant ingredients?
A1: Compared with VC, VE and synthetic antioxidants, proanthocyanidins have stronger free radical scavenging ability, more stable antioxidant activity, not easy to be inactivated by light and heat, and have dual effects of brightening and barrier repair. It is pure natural and mild, no irritation, and can be used for sensitive skin formulas, with more comprehensive efficacy and higher safety.
• Q2: What is the recommended addition ratio of proanthocyanidins in skincare formulas?
A2: Conventional antioxidant skincare products: 0.05%-0.2%; Brightening and anti-aging high-efficiency formulas: 0.2%-0.5%; Sensitive skin soothing formulas: 0.05%-0.1%; Mask essence formulas: 0.1%-0.3%. It is recommended to add at low temperature (below 40℃) to avoid high temperature inactivation of active ingredients.
• Q3: Will proanthocyanidins cause formula discoloration?
A3: Proanthocyanidins aqueous solution is reddish-brown, with slight natural color. It will not affect the appearance of conventional skincare products. Strictly control the addition amount, avoid high temperature and long-term strong light exposure during production and storage, which can effectively maintain formula color stability without obvious discoloration.
• Q4: What ingredients can proanthocyanidins be compounded with?
A4: It has excellent compatibility with most cosmetic raw materials. It can be perfectly compounded with hyaluronic acid, glycerin, niacinamide, vitamin C, peptides, plant extracts and other ingredients to form synergistic effects, enhance antioxidant, brightening and anti-aging efficacy, and optimize product mildness.
• Q5: What are the storage precautions to maintain product activity?
A5: Sealed, light-proof and low-temperature storage (2-8℃) is required. Avoid high temperature, strong light and humid environment to prevent product oxidation, deliquescence and activity attenuation. Keep away from oxidants, seal immediately after opening, and use up as soon as possible.
• Q6: Support trial order and technical guidance?
A6: Yes, we support 100G small batch trial order to meet formula debugging needs. All batches are stable in indicators with sufficient inventory. We provide professional formula compatibility guidance, addition process suggestions and after-sales technical support, and support long-term bulk supply and global delivery.
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