A cationic silicone polymer with quaternary ammonium groups, listed as an emollient and conditioning ingredient.
What it is
Silicone quaternium-25 is, according to CosIng, a complex polymer formed from glycidoxy-terminated polydimethylsiloxane, an amine-terminated PEG-39/PPG-6 block copolymer and tetramethylhexanediamine, with trimethylamine as a capping agent and lauric and acetic acids used to neutralise residual amine groups. It carries quaternary ammonium groups. CosIng lists it as an emollient, hair-conditioning and skin-conditioning ingredient.
Where it is used
Appears on the ingredient lists of a small number of products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not show the molecular weight of the polymer.
Functions
- Skin conditioning – emollient
- Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.
- Hair conditioning
- Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.
- Skin conditioning
- Maintaining the skin in good condition.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.