Barley in fragrance is usually an accord or impression rather than a dominant botanical note. It contributes a soft grain character with lightly malty, cereal-like warmth and a dry, hay-like edge, giving a composition a rounded, tactile feel without the density of an amber or gourmand accord. Its effect depends on the surrounding materials: creamy notes emphasize its malted softness, while woods and musks make it drier and more understated.
In women's fragrances, barley is often used through the heart into the base, where it can soften floral, woody, powdery, or subtly sweet structures. Look for it if you enjoy fragrances that feel comforting and textured rather than overtly sugary. It pairs naturally with vanilla, sandalwood, musk, amber, iris, and soft florals, adding a gently toasted impression that can read as cozy in richer blends or clean and grainy in lighter compositions.