Juglans Regia (Walnut) Seed Oil

Product Description

Our Juglans Regia (Walnut) Seed Oil is high-purity cosmetic-grade material from direct factory supply, cold-pressed from authenticated Juglans regia L. seed kernels with batch COA traceability for emollient and barrier-care formulators.

Rich in linoleic acid, alpha-linolenic acid, and natural tocopherols, this lightweight oil replenishes stratum corneum lipids, limits TEWL, and scavenges ROS in facial oil and cream systems without heavy occlusive load.

CosIng-listed walnut seed oil meets demand for omega-dense plant emollients in barrier-repair serums and hair-conditioning blends, offering fatty-acid depth beyond generic mineral or single-oleic carrier oils.

Product Specification

• INCI Name: Juglans Regia (Walnut) Seed Oil
• CAS No.: 8024-09-7
• Botanical Source: Juglans regia L. (Juglandaceae), seed kernel (Typical)
• Extraction Solvent: N/A — cold pressing (Typical)
• Active Marker: Linoleic acid, alpha-linolenic acid, tocopherols (Typical, GC-FID)
• Extraction Ratio: N/A — virgin seed oil (Typical)
• Appearance: Light yellow to amber clear liquid (Typical)
• Solubility: Insoluble in water; soluble in oils and lipids (Typical)
• Suggested pH: N/A — oil phase ingredient (Typical)
• Assay Method: GC-FID for fatty acid profile; peroxide value (Typical)
• Shelf Life: 18 months sealed, cool, dark storage (Typical)
• Standard Packaging: 1 kg, 5 kg, 25 kg drums (Typical)
• Storage: Tightly sealed, below 25°C, away from light and oxygen (Typical)
• Regulatory Status: Listed in CosIng (REF 57745); EC 281-688-1; skin conditioning
• Quality & Testing: Peroxide value, acid value, moisture per Typical COA
• Compliance Note: For cosmetic use only; contains tree nut; patch test advised; not for food or drug claims

Key Benefits & Applications

Juglans Regia (Walnut) Seed Oil delivers omega-rich emollient actives for formulators building barrier-repair, hydrating, and antioxidant skincare and hair care lines.

• Linoleic acid replenishes stratum corneum lipids and supports barrier repair in facial oil blends.
• Alpha-linolenic omega-3 calms inflammatory mediators in sensitive-skin moisturizers and body lotions.
• Lightweight emollient limits TEWL in cream bases without heavy silicone or occlusive load.
• Natural tocopherols scavenge ROS in antioxidant treatment oils and overnight recovery serums.
• Deeply conditions dry, flaky skin and brittle hair in body oil and scalp treatment systems.

Formulation Guidelines

Use at 1–20% w/w in oil-phase emulsions and anhydrous facial oils; add to lipid phase below 60°C and protect from heat, light, and oxygen during processing.

• Recommended use level: 1–10% in creams; 5–20% in facial and body oil blends.
• Add to oil phase during emulsification; compatible with squalane and jojoba in lipid systems.
• Include 0.1–0.5% tocopherol co-antioxidant to slow PUFA oxidation in finished formulas.
• Use opaque or airless packaging to preserve peroxide value and shelf stability.
• Avoid high-temperature processing above 70°C to limit linoleic acid degradation.
• Synergy: Pair Ceramide NP at 0.5–1% with walnut oil to reinforce barrier lipids in repair creams.