Lash products can contain a variety of ingredients, some of which may be harmful or irritating to the eyes. The main ingredient in lash extension adhesives is cyanoacrylate, a quick-drying acrylic resin that's in most super glues
. Some oils, such as mineral oil, vegetable oil, coconut oil, and canola oil, can weaken extension adhesives
. Glycols, including propylene glycol, butylene glycol, and phenoxyethanol, can dissolve adhesive bonds
. When choosing a lash cleanser, look for ingredients that will actually improve lash health, such as aloe, biotin, panthenol, silk extract, cucumber, or humectants, and other non-irritating antioxidants
. Some lash serums may contain prostaglandin and analogue serums, which use chemical compounds with hormone-like effects that are prohibited from being used in cosmetics based on Health Canada guidelines
. Peptide serums may contain conditioning and moisturizing agents to keep lashes healthy and free from brittleness and breakage, such as biotin, arginine, hydrolyzed soy protein, panthenol, and calcium pantothenate
. Lash adhesives can also contain toxic and allergenic ingredients, such as formaldehyde and latex
. It is important to read the ingredients list and avoid products that contain harmful or irritating ingredients.