Macadamia Ternifolia Seed Oil | Macadamia Nut Oil
Quick Specs:
-
INCI Name: Macadamia Ternifolia Seed Oil
-
CAS Number: 128497-20-1
-
Appearance: Clear, pale yellow to golden lipid liquid
-
Odor: Faint, characteristic nutty (practically odorless in refined grades)
-
Recommended pH Range: 3.0 – 8.0 (Formulation pH; lipid is anhydrous)
Executive Summary: 17is supplies premium-grade Macadamia Ternifolia Seed Oil (澳洲坚果油), a highly stable, high palmitoleic acid botanical lipid engineered for advanced cosmetic architectures. Characterized by an exceptional fatty acid profile containing upwards of 16–23% palmitoleic acid (C16:1, Omega-7) alongside a high concentration of oleic acid (C18:1, Omega-9), this ingredient acts as a highly effective biomimetic emollient. Its primary mechanism of action relies on structural homology with human stratum corneum lipids; it actively replenishes the intercellular lipid matrix, lowering transepidermal water loss (TEWL) and facilitating rapid, deep epidermal penetration without residual tackiness or sensory drag.
For R&D formulators, this Macadamia Nut Oil presents a superior, oxidation-resistant alternative to traditional polyunsaturated plant oils and synthetic cyclic silicones. Its elevated oxidative stability—conferred by a naturally low iodine value and endogenous tocopherols—ensures prolonged formula shelf-life and limits the need for heavy antioxidant buffering in complex emulsion systems. Furthermore, its inherent polarity and low molecular weight make it an excellent solvent vehicle for lipophilic active pharmaceutical ingredients (APIs), botanical extracts, and crystalline UV filters, allowing for elegant sensory profiles across both anhydrous and aqueous matrices.
Formulation Guidelines:
-
Recommended Usage Rate: 1.0% – 10.0% in standard O/W or W/O emulsions; up to 100.0% in anhydrous applications (lipid serums, lip balms, massage bases).
-
Solubility: Fully soluble in cosmetic esters, vegetable oils, squalane, and non-polar solvents. Insoluble in water and short-chain alcohols.
-
Phase Integration: Add directly to the heated oil phase. Thermally stable up to 80°C during the emulsification process. Suitable for high-shear homogenization and compatible with cold-process manufacturing if added to the lipid phase prior to dispersion. Compatible with non-ionic, anionic, and cationic emulsifier networks.
Primary Applications:
-
Biomimetic barrier-repair creams and anti-aging facial serums.
-
Lipid-replenishing body lotions, rich emulsion butters, and therapeutic dermatological bases.
-
Anhydrous hair care formulations, structural conditioners, and scalp treatments for cuticle lipid restoration.
-
Suncare and after-sun formulations (functions as an efficient solubilizer for organic UV filters).
-
Color cosmetics (liquid foundations, lipsticks, and cream blushes) as an optimal pigment wetting and dispersion medium.
