Amika Soulstruck Nourishing Dry Hair Mask is a leave-in, no-rinse aerosol spray — despite the "mask" name, it isn't a rinse-out treatment. It's built around a vegan silk protein and sea buckthorn oil to soften and reinforce dry hair in a single spray, meant for quick touch-ups between wash days rather than a deep-conditioning session.

Amika states its own testing shows the formula makes hair 6x softer instantly, 6x more moisturized, and 3.5x stronger, though the brand doesn't publish the testing methodology behind those figures.

• Leave-in, no-rinse aerosol spray (not a rinse-out mask)
• Built around vegan silk protein and sea buckthorn oil
• Suited to dry, brittle hair and extensions

Because it's an aerosol, it goes on light and even without the greasy feel a heavier leave-in oil can leave, which is the main reason it works well between full wash days.

Dimethyl Ether, Water/Aqua/Eau, Alcohol Denat. (SD Alcohol 40-B), sh-Polypeptide-168/Oligopeptide-178 (Vegan Silk Protein), Simmondsia Chinensis (Jojoba) Seed Oil, Astrocaryum Murumuru Seed Butter, Hippophae Rhamnoides (Sea Buckthorn) Fruit/Seed Oil, Diospyros Kaki (Persimmon) Fruit Extract, Crambe Abyssinica Seed Oil, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Seed Oil, Ximenia Americana Seed Oil, Theobroma Cacao (Cocoa) Extract, Musa Sapientum (Banana) Fruit Extract, Ananas Sativus (Pineapple) Fruit Extract, Biosaccharide Gum-4, Behentrimonium Chloride, Cetearyl Alcohol, Tocopherol, Ethyl Linoleate, Ethyl Oleate, Caprylyl Glycol, Pentylene Glycol, Propanediol, Ethylhexylglycerin, 1,2-Hexanediol, Butylene Glycol, Sodium Benzoate, Potassium Sorbate, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Fragrance/Parfum, Benzyl Benzoate, Hydroxycitronellal, Limonene, Citronellol, Coumarin, Tetramethyl Acetyloctahydronaphthalenes, Vanillin