Sebastian Professional Potion 9 Leave-In Conditioner & Styling Cream is a wearable leave-in treatment that Sebastian has sold since 1990, when it introduced the product as one of the first "wearable treatment" hybrids that condition and style in one step. The formula is built around nine botanical extracts, a mix that draws on plant oils such as jojoba, safflower, olive, babassu, and sesame along with evening primrose and rice bran, which Sebastian markets as restoring moisture and softness to the hair while a flexible-hold polymer base provides styling control that moves rather than stiffens.

It's applied to clean, towel-dried hair from roots to ends, using a small amount and building up as needed, then blow-dried or heat-styled as usual without rinsing; it can also be smoothed onto dry hair between washes to add control and cut down on frizz. Sebastian positions Potion 9 as a multi-purpose product for people who want light conditioning and flexible hold from a single leave-in rather than layering a separate conditioner and styling product.

Aqua/Water/Eau, Glycerin, PVP, Guar Hydroxypropyltrimonium Chloride, Carthamus Tinctorius (Safflower) Seed Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Hydroxyethylcellulose, Cetearyl Alcohol, Phenoxyethanol, Sodium Benzoate, Cetyl Alcohol, Methyl Gluceth-20, Parfum/Fragrance, Hydrolyzed Wheat Protein, Polysorbate 60, Panthenol, Amodimethicone, Olea Europaea (Olive) Fruit Oil, Orbignya Oleifera Seed Oil, Oenothera Biennis (Evening Primrose) Seed Extract, Stearalkonium Chloride, Citric Acid, Ethylhexyl Methoxycinnamate, Sesamum Indicum (Sesame) Seed Oil, Propylene Glycol, Limonene, Citrus Aurantium Peel Oil, Oryza Sativa (Rice) Bran Oil, Hexyl Cinnamal, Alcohol Denat., Camellia Sinensis Leaf Extract.