Glossary Terms ALLERGEN October 4, 2022 Posted by Sean McWard 09 Jul Allergen [al-ler-jen] What it is: A substance that causes an allergic reaction in the body. This reaction can be topical or systemic. VIDEOS RELATED TO THIS TERM HD One by Hazel Dixon NailsPink Paisley Nail ArtLoading the Polish Brush LEARN MORE TERMS View All Glossary Terms DIP POWDER OMBRÉ NAIL ENHANCEMENT