Emollient Supplier (USA): Ester, Hydrocarbon and Natural Emollients

Suppose one request covers isopropyl myristate and white mineral oil. Under FDA’s OTC Monograph M016, mineral oil can be the active in a product labeled as an over-the-counter (OTC) skin protectant, at 50-100%; the ester cannot. Before comparing emollient suppliers, put four things on every line: INCI name, class, the claim the product will make, and the use level.

How do the emollients compare on safety finding, use level and US status?

Every emollient here that the Cosmetic Ingredient Review (CIR) lists in its December 2025 Quick Reference Table carries a safe finding; many alkyl esters and dicaprylyl carbonate carry the qualifier “when formulated to be non-irritating”. Reported leave-on use runs from 3% (hexyl laurate) to 95.6% (caprylic/capric triglyceride). Only mineral oil and lanolin here are OTC skin-protectant actives.

A CIR finding describes the ingredient, never a lot; where the table and the CIR report behind a use level disagree, the row carries a dagger. A reported use level is what industry surveys found between 2008 and 2016, so size a formula on your own data.

Ester emollients: IPM, IPP, CCT, ethylhexyl palmitate and C12-15 alkyl benzoate

Ester use levels spread widely in CIR’s alkyl esters report (2012 survey data), from 3% for hexyl laurate to 78% for ethylhexyl palmitate, with isopropyl myristate (IPM) at 77.3%, so the same class covers a main oil phase and an additive. Caprylic/capric triglyceride (CCT) reached 95.6% in the 2015-2016 data in CIR’s triglycerides report. Butyl oleate had no current use reported in the 2012-2013 data. Ask your formulator to justify a specification built around it before you qualify a source.

An INCI name can describe a mixture. CIR defines isopropyl palmitate (IPP) as a mixture of isopropyl esters with a minimum 60% isopropyl palmitate. Two lots can therefore carry the same name and differ in composition. Quote on the ester content the lot certifies.

Physical form changes the plant work. Cetyl palmitate melts at 46-54 °C and myristyl myristate at 37-39 °C, so both go into a heated oil phase. Isopropyl palmitate melts at 11 °C and hexyl laurate at -3.4 °C, so both stay liquid at room temperature. Dicaprylyl carbonate is a white liquid. Sensory choice between near-equivalents is a formulation question; the emollient ester selection guide covers spreading and feel.

Hydrocarbon emollients: mineral oil, squalane and isoparaffins

Mineral oil carries the most regulation in this class. FDA’s OTC Monograph M016 lists it as a skin-protectant active at 50-100%, and 21 CFR 172.878 defines white mineral oil as a mixture of liquid hydrocarbons, essentially paraffinic and naphthenic, obtained from petroleum.

CIR’s December 2025 Quick Reference Table has no entry for mineral oil. For food use, 21 CFR 172.878 requires white mineral oil to pass the United States Pharmacopeia (USP) XX test for readily carbonizable substances, the USP XVII test for sulfur compounds and an ultraviolet absorbance limit; put those three on the purchase order. For a cosmetic purchase no CFR section sets the specification: the Certificate of Analysis (CoA) for the lot governs.

The isoparaffins run at high loadings. In the 2010 survey in CIR’s draft final isoparaffins report, isododecane reached 90% and isohexadecane 42% in leave-on products. CIR’s polyene group report (2015) puts hydrogenated polyisobutene at 95% in lip products. At those loadings the hydrocarbon is the base of the formula, not an additive, so its specification carries the product’s.

Natural oils, butters and lanolin: shea, mango, coconut, jojoba and lanolin

Natural emollients are bought on chemistry that the INCI name leaves open: iodine, saponification and peroxide values, and the melting point. Ask for those values on every lot’s CoA. Coconut oil melts at 22-26 °C, so it can arrive liquid in August and solid in January.

Use levels in CIR’s plant-oils draft final report vary as much as in the esters. Coconut oil reached 80% in the 2008 data. In the 2010 data, sweet almond oil reached 77%, shea butter 60% as a cuticle softener, and argan kernel oil 10% in body and hand creams.

Lanolin is the only natural emollient here with an OTC skin-protectant range: 12.5-50% under FDA’s OTC Monograph M016, and 15.5% in diaper-rash combinations. If the finished label claims skin protection, the lanolin content has to sit inside the range that applies.

Industries served

Cosmetics buyers specify from CIR’s findings and reported use levels; food buyers of white mineral oil and petrolatum write to 21 CFR 172.878 and 172.880.

Documents and quotes

Add these lines to every request, after the INCI name, class, claim and use level:

1. For an OTC skin-protectant or a food use, the rule the use falls under (OTC Monograph M016, or 21 CFR 172.878 or 172.880) and the specification your quality team requires.
2. For esters sold as mixtures, the ester content the lot certifies: CIR describes isopropyl palmitate as a mixture with a minimum of 60% isopropyl palmitate.
3. For natural butters and oils, iodine, saponification and peroxide values on each lot’s CoA.

A listing here is not a statement that a lot meets a food or drug specification; the lot’s CoA settles that. Send the request from the product page, which carries the quote form.

For formulation questions, see technical support. Supplied for industrial formulation and manufacturing use, not for retail or consumer sale.

Related emollient pages