Camellia Oleifera Oil Refined

Refined Camellia oleifera seed oil is a non‑volatile fixed oil composed mainly of triglycerides and a modest unsaponifiable fraction, so it does not carry the respiratory or hepatic risks associated with concentrated essential oils and terpenes—risks that are particularly pronounced in cats, which are deficient in key UDP‑glucuronosyltransferase enzymes used to metabolise phenolic and terpenoid compounds (Court, 2013; Tisserand & Young, 2014). With an oleic‑acid content in the 74–87% range, it forms a breathable, lightweight lipid film on skin and coat that helps reduce transepidermal water loss without the heavy, build‑up‑prone residue often seen with castor or coconut oils, making it well suited to leave‑on grooming products for both dogs and cats. Several commercial pet‑care brands already formulate dog‑and‑cat grooming oils, shampoos and conditioners with Camellia oleifera seed oil as a main or co‑main lipid, taking advantage of its pale colour and low inherent odour to minimise sensory interference, while still designing products to limit ingestion through licking and to comply with local pet‑cosmetic regulations and basic dermal tolerance testing.

Refined Camellia oleifera oil’s oxidative stability is driven primarily by its fatty‑acid profile: oleic acid accounts for about 74–87% of total fatty acids, while polyunsaturated acids such as linoleic and linolenic typically represent only 7–14%, making it significantly less prone to peroxide formation than oils dominated by di‑ and tri‑unsaturated species like grapeseed or rosehip. A very low acid value specification (around 0.2 mg KOH/g max) and moisture content capped at roughly 0.1% indicate minimal free fatty acids and bound water, reducing the substrate and driving force for hydrolytic rancidity and the development of off‑odours during storage. As a triglyceride‑based fixed oil with typical molecular weights in the 800–900 Da range and correspondingly low vapour pressure at ambient temperature, refined Camellia oleifera oil is inherently resistant to evaporation, and a "solvent residues: negative" specification further confirms that no volatile processing solvents remain to off‑gas over time.

The refined and cosmetic grades share the same core safety and compositional controls: both specify a maximum acid value of 0.2 mg KOH/g, an oleic acid content of 74–87% with linoleic acid at 7–14%, moisture ≤0.1%, impurity ≤0.05%, negative solvent residues, and heavy‑metal and arsenic limits of ≤5 ppm and ≤2 ppm respectively. The cosmetic‑grade sheet additionally reports peroxide value (≤6 meq/kg), iodine value (83–89 g/100 g) and unsaponifiable matter (≤15 g/kg), which makes it more convenient for formulation and QC teams who need to monitor oxidative status and unsaponifiable content directly as part of their in‑house control strategy. The refined grade, described as "white tea oil" or "aged Camellia oil," emphasises long‑term natural colour and odour reduction, yielding a clearer, lower‑odour oil compared with the golden, characteristically camellia‑scented cosmetic grade, which can be advantageous in applications where base‑oil colour and odour must be minimal, such as transparent facial products or sensitive pet‑care formulations. For procurement, this means the choice is less about basic safety—both grades meet stringent limits—and more about whether downstream users prioritise extended analytical parameters like PV/IV/unsaponifiables, or a visually and olfactively neutral base oil for cross‑category use.