What Is Tea-C8-18 Perfluoroalkylethyl Phosphate?
Tea-C8-18 Perfluoroalkylethyl Phosphate is a salt formed when triethanolamine joins with a mix of phosphorus-based esters made from long chain perfluoroalkyl alcohols containing 8 to 18 carbon atoms. These long chains are known for being highly water and oil repellent, which is why they caught the attention of the beauty industry. The ingredient first showed up in specialty hair sprays and skin care lines in the late 1990s, when brands began searching for lighter feeling conditioners that would not weigh hair or skin down. To create it, chemists react the perfluoroalkyl alcohol with phosphoric acid, then neutralize the result with triethanolamine to form a stable, easy-to-use liquid. Today you will most often see it in leave-in hair conditioners, light lotions, makeup primers, long-wear foundations, setting sprays, and certain sheet masks where a silky finish and easy spread are key.
Tea-C8-18 Perfluoroalkylethyl Phosphate’s Cosmetic Benefits/Uses
This ingredient pulls triple duty in many formulas
- Hair conditioning – Forms a smooth coating that helps detangle strands, adds slip during comb-through, reduces static flyaways and leaves hair feeling soft without a heavy residue
- Skin conditioning – Creates a breathable film that locks in moisture, gives skin a velvety touch and improves the spread of pigments in makeup for an even finish
- Cleansing – Works as a gentle surface active agent that lifts dirt and excess oil while still leaving behind a light protective layer so skin and hair do not feel stripped
Who Can Use Tea-C8-18 Perfluoroalkylethyl Phosphate
This ingredient is generally well tolerated by most skin types including oily, combination, normal and even many dry skins because it creates a weightless film that locks in moisture without clogging pores. Those with very sensitive or easily irritated skin might want to monitor for any redness as fluorinated compounds can occasionally cause discomfort in reactive complexions.
Tea-C8-18 Perfluoroalkylethyl Phosphate is synthetically produced with no animal derived components so it is considered suitable for both vegans and vegetarians.
Current safety data show no special warnings for women who are pregnant or breastfeeding since the large molecular size limits absorption through the skin. That said this is not medical advice and anyone expecting or nursing should discuss every skincare product with a healthcare professional to be extra safe.
The molecule does not make skin more sensitive to sunlight and has no known impact on tanning or burning. It is also fragrance free and non volatile so there is little risk of inhalation issues when used in creams or lotions.
Potential Side Effects/Adverse Reactions
Side effects from topical use of Tea-C8-18 Perfluoroalkylethyl Phosphate vary from person to person. The points below outline potential reactions yet most consumers will not experience them when the ingredient is used correctly in a finished formula.
- Mild skin irritation such as redness or itching in very sensitive individuals
- Contact dermatitis in people allergic to triethanolamine or fluorinated compounds
- Eye irritation if a spray or runny product accidentally gets into the eyes
- Build up on fine hair leading to limpness if the product is not washed out periodically
Discontinue use and consult a healthcare professional if you notice persistent irritation or any unexpected reaction
Comedogenic Rating
Rating: 1/5 (very low). Tea-C8-18 Perfluoroalkylethyl Phosphate has a large, fluorinated structure that sits on top of the skin rather than sinking into pores. It creates a thin breathable film much like certain silicones, which are also rated low for clogging risk. Because it is used at small percentages and leaves a weightless finish, the chance of it trapping oil and debris is minimal. This makes the ingredient generally suitable for people prone to acne or breakouts. Keep in mind the overall formula matters; heavy oils or waxes paired with it can still trigger congestion even if this single component is low risk.
Summary
Tea-C8-18 Perfluoroalkylethyl Phosphate conditions hair, conditions skin and provides mild cleansing by forming a smooth, water and oil repelling film that detangles strands, locks in moisture and lifts away surface grime without stripping. It also improves spreadability in makeup so pigments glide on evenly.
While not as famous as silicones or plant oils, it has carved out a niche in lightweight leave-in conditioners, long wear foundations and setting sprays where a silky feel is prized. Usage remains moderate rather than mainstream largely due to its specialised fluorinated chemistry and higher cost.
Current research and industry reviews label it safe for topical use at typical cosmetic levels, with irritation reports being rare. As with any new product it is wise to patch test first, especially if you have sensitive or reactive skin.