A polymer of the amino acid lysine, used as an emulsifier and conditioning ingredient.
What it is
Polyepsilon-lysine is a polymer of the amino acid L-lysine in which the units are linked through their epsilon-amino groups. CosIng lists it as an emulsifying, hair-conditioning and skin-conditioning ingredient.
Where it is used
Found in a small number of products, such as skin care and hair care 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 chain length or how the polymer was produced.
Functions
- Surfactant – emulsifying
- Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
- 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 – miscellaneous
- Enhancing the appearance of dry and/or damaged skin by reducing flaking and restoring suppleness.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.
Products with this ingredient (7)
- Bonacure Repair Rescue+ Treatment 200 ml · Schwarzkopf Professional
- Bonacure Repair Rescue+ Spray Conditioner 200 ml · Schwarzkopf Professional
- Bonacure Repair Rescue+ Shampoo 250 ml · Schwarzkopf Professional
- Bonacure Repair Rescue+ Sealed Ends+ 100 ml · Schwarzkopf Professional
- Bonacure Repair Rescue+ Conditioner 200 ml · Schwarzkopf Professional
- 90 Giorni Trattamento Ondulante · Kativa
- Masque visage purifiant Argile verte · Biocos