All our adhesives are low in fumes which is better for the clients and yourself. You must do a patch test on every new client or if you change adhesive. Please remember that patch test doesn’t guarantee 100% that the client won’t react on the day. If your client had sensitivity, allergy to lash adhesive in the past, most likely she/he will react to our adhesive. As all adhesives contains cyanoacrylates, which is main allergen. But there could be possibility, that client allergic to pigment, then best to choose clear glue. We have very good blog about allergies , you can find it here