What Is C14-19 Alkane?
C14-19 Alkane is a clear, odorless liquid made up of lightweight hydrocarbon chains containing between 14 and 19 carbon atoms. These chains belong to the alkane family, which is why the ingredient behaves much like a very light oil. Most suppliers obtain it by carefully distilling petroleum fractions or by hydrogenating plant-derived fatty acids, then isolating the specific chain lengths that fall in the C14-C19 range. The finished material is highly purified so it is free of aromatic compounds, sulfur and other potential irritants.
Historically, formulators relied on heavier mineral oils or silicones to give products a smooth glide. As consumer demand grew for ingredients that feel lighter on the skin and have a better environmental profile, C14-19 Alkane rose in popularity. Its biodegradable nature and pleasant, dry finish make it a modern alternative to traditional emollients.
You will most often spot this ingredient in leave-on skincare such as moisturizers, facial oils, primers, sunscreens and makeup removers. It is also common in hair serums, deodorants, lip balms and cleansing balms where a light, non-greasy feel is key.
C14-19 Alkane’s Cosmetic Benefits/Uses
The primary role of C14-19 Alkane in a cosmetic formula is as a solvent. By dissolving oil-soluble actives, fragrances and pigments, it helps create a uniform blend that spreads effortlessly on skin or hair. This not only improves product texture and absorption but also enhances the performance of other ingredients that need an even distribution to do their job well.
Who Can Use C14-19 Alkane
C14-19 Alkane is generally well tolerated by all skin types, including dry, normal, combination and oily skin, because it delivers a light silky finish without leaving a heavy residue. Sensitive skin usually handles it well since the ingredient is highly purified and free of common irritants, though individual responses can vary.
Most commercial grades come from either petroleum sources or hydrogenated plant oils. When the latter is used the ingredient can fit comfortably into vegan and vegetarian routines. Those who prefer to avoid petroleum should check with the brand to confirm the feedstock.
Pregnant or breastfeeding individuals are not known to face specific risks from topical C14-19 Alkane. That said this is not medical advice and anyone expecting or nursing should run new skincare products past a qualified healthcare provider to be on the safe side.
The ingredient does not absorb UV light and therefore is not linked to photosensitivity. It also has no known interactions with common actives like retinoids or acids, so it can be layered easily within most routines.
Potential Side Effects/Adverse Reactions
Side effects and reactions to the topical application of C14-19 Alkane can vary from person to person. The points below outline potential issues, yet they are uncommon when the ingredient is formulated and used correctly.
- Mild skin irritation – very rare transient redness or stinging in those with highly reactive skin
- Contact dermatitis – isolated cases of sensitivities linked to impurities or individual allergy
- Clogged pores – uncommon but possible for those extremely prone to congestion if used in heavy occlusive formulas
- Eye irritation – temporary watering or discomfort if the liquid accidentally gets into the eyes
If you notice persistent irritation or any unexpected reaction stop using the product and consult a healthcare professional.
Comedogenic Rating
Rating: 1 out of 5. C14-19 Alkane is a lightweight, fast-evaporating solvent that does not sit heavily on the skin or create a thick occlusive film, which keeps the chance of pore blockage quite low. Most reports and formulator feedback list it alongside other low-clogging alkanes such as isohexadecane. It is therefore generally acceptable for people who are prone to acne or breakouts, provided the rest of the formula is also low in comedogenic ingredients. High usage levels in very rich balms could raise the risk slightly, but in typical concentrations it remains a minimal concern.
Summary
C14-19 Alkane acts mainly as a solvent, giving skincare and makeup a lightweight slip while helping dissolve oil-soluble actives, fragrances and pigments so they spread evenly. Its rapid absorption and dry finish make it a modern alternative to heavier mineral oils and silicones. Because it is biodegradable and usually highly purified, it has gained popularity in clean beauty formulations and eco-minded brands, though it is still less common than classic emollients.
Overall safety data show a very low risk of irritation or sensitization, with a near-zero comedogenic profile for most users. As with any new product, it is smart to perform a quick patch test to confirm personal tolerance before full-face or body application.