What Is Hydrogenated Tetradecenyl/Methylpentadecene?
Hydrogenated Tetradecenyl/Methylpentadecene is a lab-crafted blend of long-chain hydrocarbons created by reacting the natural olefins 1-tetradecene and 7-methylene-pentadecane then hydrogenating the resulting dimers and trimers. The hydrogenation step saturates the molecules, making them clear, odorless and highly stable against oxidation. This ingredient first appeared in cosmetic science in the late 1990s when formulators were looking for light, non-greasy alternatives to mineral oil. Its skin-friendly slip and low volatility quickly made it popular in premium skincare and color cosmetics.
Production begins with plant-derived or petrochemical feedstocks that are cracked to obtain 1-tetradecene and other C14-C15 olefins. These olefins undergo controlled oligomerization to form larger molecules, which are then fully hydrogenated. The final material is purified to remove residual catalysts and ensure cosmetic-grade safety.
You will most often spot Hydrogenated Tetradecenyl/Methylpentadecene in lightweight facial oils, silicone-free primers, long-wear foundations, lipsticks, balms, sunscreens, hair shine serums and anti-aging creams where a silky after-feel and enhanced spreadability are desired.
Hydrogenated Tetradecenyl/Methylpentadecene’s Cosmetic Benefits/Uses
This versatile ingredient improves both the feel and performance of many personal care formulas.
- Plasticiser: Softens rigid waxes or film formers so products like lipsticks and mascaras glide on smoothly without cracking
- Solvent: Helps dissolve oil-soluble actives, pigments and UV filters which allows for even distribution and stable color payoff
- Viscosity Controlling: Adjusts thickness by thinning heavy creams or boosting the body of light oils giving formulators precise texture control
Who Can Use Hydrogenated Tetradecenyl/Methylpentadecene
This silky emollient suits nearly all skin types including dry, normal, combination and oily because it feels weightless and has a low tendency to clog pores. Those with very sensitive or compromised skin often tolerate it well since it contains no fragrance or reactive functional groups that commonly trigger redness. People battling severe acne may still want to keep an eye on how their skin responds because any oil-like ingredient can occasionally contribute to congestion if used in heavy layers.
The material is synthesized from plant or petroleum feedstocks and contains no animal-derived components so it is considered vegan and vegetarian friendly.
No research indicates that it poses a special risk to women who are pregnant or breastfeeding when applied topically. That said this is not medical advice and anyone who is expecting or nursing should review new skincare products with their doctor for personal assurance.
Hydrogenated Tetradecenyl/Methylpentadecene does not make skin more sensitive to sunlight and can safely appear in day or night formulas without increasing the chance of sunburn.
Potential Side Effects/Adverse Reactions
Reactions to topical Hydrogenated Tetradecenyl/Methylpentadecene differ from person to person. The points below outline potential side effects yet most users will not notice any problems when the ingredient is used at standard cosmetic levels.
- Mild skin irritation such as itching or redness in individuals with very reactive skin
- Contact dermatitis in the rare event of an allergy to the molecule or trace impurities
- Temporary acne bumps if layered too heavily on skin already prone to clogged pores
- Eye discomfort or watering if the ingredient migrates into the eyes from makeup
If any of these issues occur stop using the product immediately and seek guidance from a medical professional or dermatologist.
Comedogenic Rating
Rating: 1/5
Hydrogenated Tetradecenyl/Methylpentadecene is a branched, highly saturated hydrocarbon that spreads thinly and evaporates very little, giving it slip without leaving a heavy residue. Its molecular size is larger than typical pore-clogging oils and it contains no fatty acids that feed acne bacteria. For these reasons it earns a low comedogenic score of 1.
The ingredient is generally suitable for people who are prone to acne or breakouts as long as it is used in lightweight formulas.
Formulas that pair this material with heavier waxes or butters may raise the overall pore-clogging potential, so always consider the full ingredient list rather than judging by one component alone.
Summary
Hydrogenated Tetradecenyl/Methylpentadecene works as a plasticiser, solvent and viscosity controller. It softens wax films so makeup glides on, dissolves oil-soluble actives and pigments for even distribution and fine-tunes texture by thinning heavy creams or adding body to dry oils. Its saturated structure keeps it stable against heat and oxidation which helps extend product shelf life.
Although not as famous as silicones or mineral oil, this ingredient has carved out a steady following in premium facial oils, long-wear foundations and silicone-free primers because it offers a silky feel without greasiness.
Current data shows it is safe for topical use with a very low risk of irritation or sensitisation. As with any new skincare product it is wise to perform a patch test to make sure your individual skin is comfortable with the formula.