What Is C14-16 Isoparaffin?
C14-16 Isoparaffin is a clear odorless liquid made up of lightweight branched chain hydrocarbons that carry 14 to 16 carbon atoms each. It is sourced from petroleum and comes to life during the refining process when crude oil is separated into various fractions. After fractional distillation the selected fraction is treated with hydrogen to remove impurities, then carefully distilled again to isolate the desired carbon range. This creates a highly purified cosmetic-grade ingredient that feels silky and non-greasy on skin.
Although mineral oil has long been a staple in personal care, the search for lighter textures in the 1970s and 1980s led formulators to try shorter chain isoparaffins like C14-16. Their quick spreadability and clean finish made them popular in modern formulations. Today you will spot C14-16 Isoparaffin in many leave-on and rinse-off products such as moisturizers, anti-aging creams, masks, makeup removers, liquid foundations, sunscreens, deodorants, hair conditioners and styling aids.
C14-16 Isoparaffin’s Cosmetic Benefits/Uses
In cosmetics C14-16 Isoparaffin serves one main purpose that offers several formulation benefits.
As a solvent it helps dissolve oil-soluble ingredients like pigments sunscreens fragrances and some active compounds so they can be distributed evenly throughout the product. This improves texture prevents separation and allows the formula to glide smoothly over skin or hair leaving a lightweight non-sticky finish.
Who Can Use C14-16 Isoparaffin
Because it is lightweight and non-greasy C14-16 Isoparaffin suits most skin types including normal oily and combination skin. Dry skin can also benefit from its smooth slip when paired with richer emollients. Those with very sensitive or redness-prone skin usually tolerate it well since it is inert and fragrance-free, though any petroleum-derived ingredient can occasionally feel occlusive on easily congested skin.
The ingredient is petroleum based with no animal or insect content so it is considered suitable for vegans and vegetarians.
No data suggest specific concerns for pregnant or breastfeeding women when used topically in cosmetic concentrations. This information is not medical advice and anyone who is expecting or nursing should clear new products with a healthcare provider to be safe.
C14-16 Isoparaffin does not absorb UV light and is not known to cause photosensitivity, so it will not make skin more sensitive to the sun.
Potential Side Effects/Adverse Reactions
Responses to topical C14-16 Isoparaffin differ from person to person. The points below outline potential effects that are possible yet uncommon when the ingredient is used at the levels permitted in finished cosmetics.
- Mild skin irritation – very rare, usually presents as temporary redness or itching
- Worsening of existing acne or folliculitis – possible in individuals who are already highly prone to clogged pores
- Contact dermatitis – an allergic reaction is theoretically possible but extremely uncommon due to the molecule’s low reactivity
- Eye irritation – may occur if a product containing the ingredient is accidentally rubbed into the eyes
If any irritation or discomfort develops stop using the product and consult a medical professional if symptoms persist.
Comedogenic Rating
Rating: 1 out of 5. C14-16 Isoparaffin has a very low tendency to clog pores because its branched structure spreads thinly and sits mostly on the surface without mixing deeply with skin lipids. While any oil-like substance can theoretically trap debris in pores, studies and anecdotal reports show minimal breakout activity when this ingredient is used at normal cosmetic levels. It is generally suitable for acne-prone or breakout-prone skin, though overall formula design and personal skin chemistry still play a role. As with most ingredients, the finished product’s blend, texture and removal method can influence whether pores stay clear.
Summary
C14-16 Isoparaffin is a lightweight petroleum-derived solvent that helps dissolve oil-soluble actives, pigments and fragrances so they spread evenly and feel silky on skin or hair. Its quick-spreading nature improves glide, stabilizes emulsions and leaves a clean non-greasy finish.
Although not as famous as silicone or mineral oil, it remains a quiet workhorse in moisturizers, makeup removers, sunscreens and hair products where a light feel is desired. The ingredient has an excellent safety profile, with irritation and allergy reports being rare, and it earns a low comedogenic rating that suits most skin types.
Overall C14-16 Isoparaffin is considered safe for topical use in the concentrations found in cosmetics. Still, skin is personal, so it is wise to patch test any new product containing this solvent to confirm compatibility before regular use.