Fractionated Coconut Oil

Overview

Fractionated coconut oil is what you get when you take coconut oil and separate out only the medium-chain triglycerides — caprylic acid (C8) and capric acid (C10) — leaving behind the longer fatty acids that make regular coconut oil solid at room temperature. The result is a clear, colourless, completely liquid oil that stays fluid even in a fridge.

You will see it sold as “fractionated coconut oil,” “MCT oil,” or “caprylic/capric triglyceride.” The INCI is always Caprylic/Capric Triglyceride.

It is essentially scent-free, colour-free, and exceptionally stable — shelf life is 3-5 years, the longest of any common cosmetic oil. The reason is the very short fatty acid chains with zero double bonds: nothing to oxidize.

Skin feel is light, dry, and non-greasy — closer to silicone than to regular coconut oil. That makes it a go-to ingredient for face oils, lightweight serums, massage oils, and any formula where you want the benefits of an oil without the heavy feel.

What it does in a formula

Caprylic/capric triglyceride is 100% medium-chain triglyceride structure. The short chains spread fast, absorb fast, and leave a dry-satin finish. The molecule is small enough to penetrate the upper skin layers smoothly while not so small that it causes irritation.

In a formula it acts as a light, non-greasy carrier for oil-soluble actives, fragrances, and essential oils — it dissolves them cleanly and delivers them without a heavy base. Many concentrated CO2 extracts and oil-soluble vitamins come dispersed in fractionated coconut for exactly this reason.

It has no comedogenic concern at typical use rates and is well-tolerated by all skin types including oily and acne-prone.

In emulsions it gives slip without weight, and it does not interfere with most emulsifiers. In anhydrous products it gives a lightweight, premium feel.

How to use

Add to the oil phase. Tolerates heat-and-hold to 80 C without degradation. Can be added at any stage of the formula.

Usage rates by product type:

• Face serums: 20-80%
• Face creams and lotions: 5-20%
• Body lotions and oils: 10-50%
• Massage oils: 30-100%
• Cleansing oils: 20-60%
• Lip oils and balms: 5-20%
• Hair oils and leave-ins: 10-30%
• Carrier for essential oils and CO2 extracts: up to 100%

Best for / Worst for

Best for: lightweight face serums, massage oils, oil-soluble active carriers, leave-on products for oily and combination skin, hair oils for fine hair, premium silky-feel formulas.

Worst for: very dry skin formulas needing rich emollience (it is too light on its own — blend with heavier oils), formulas marketed strictly on “fresh pressed natural oils only” (it is technically a fraction, not a virgin oil), and anywhere you want occlusion.

Common pitfalls

Treating it as a swap for solid coconut oil. They are not interchangeable. Solid coconut oil contributes lauric acid and a hard structure at room temperature. Fractionated coconut is liquid and contains no lauric acid. Different fatty acid profile, different behaviour.

Overusing in face creams. At 30%+ in a face cream, fractionated coconut can leave skin feeling oddly bare — it absorbs so fast there is no after-feel. For face care, pair with a richer oil for finish.

Sourcing. “MCT oil” sold for food and “caprylic/capric triglyceride” sold for cosmetics are the same thing chemically. The cosmetic grade is filtered for skin use and often packed in proper opaque containers.

Substitutes

• Coco-caprylate — close cousin, slightly different ester, even drier finish.
• Squalane — different molecule, very similar skin feel.
• Isoamyl laurate — fast, dry, light feel like fractionated coconut.
• Light cosmetic esters (isopropyl myristate, isopropyl palmitate) — synthetic equivalents.