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 Recognizing the Saboteur Inside Your Head Breaking in a New Brush Tap into the Wise & Powerful Part of You LEARN MORE TERMS HARD GELS REFLEXOLOGY UV/LED GEL POLISH MASK DIP POWDER OPAQUE CARPAL TUNNEL SMILE LINE ACRYGEL CHROME NAILS WHITE SPOTS HYPONYCHIUM NAIL STICKERS SCRUBS UV GEL COATING DUST EXTRACTION NAIL POLISH ALLERGIC CURING LAMP HARD GELS REFLEXOLOGY UV/LED GEL POLISH MASK DIP POWDER OPAQUE CARPAL TUNNEL SMILE LINE PrevNext
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