Black Opium by Yves Saint Laurent is a warm and spicy fragrance with notes of coffee, white flowers, and vanilla. The fragrance is described as having three sets of notes, with the immediate impression of the top note leading to the deeper middle notes, and the base notes gradually appearing as the final stage. The precise formula of commercial perfumes is kept secret, but the ingredients of Black Opium include alcohol, water, benzyl salicylate, benzyl alcohol, hydroxycitronellal, butyl methoxydibenzoylmethane, hexyl cinnamal, limonene, linalool, geraniol, citronellol, cinnamyl alcohol, and more.

Positive aspects of Black Opium include its intoxicating and long-lasting fragrance, which is highly rated by customers. The fragrance is described as voluptuous, rich, and mysterious, with a roundness and depth that contrasts the richness of resins and woods with creamy vanilla.

Negative aspects of Black Opium include that it may be excessively sweet and fruited, with a hazy, abstract floralcy that can be overpowering.

In summary, Black Opium by Yves Saint Laurent is a warm and spicy fragrance with notes of coffee, white flowers, and vanilla. Its ingredients include alcohol, water, and various fragrant compounds. Positive aspects of the fragrance include its intoxicating and long-lasting scent, while negative aspects include that it may be excessively sweet and overpowering.