Leave In Conditioner — Reddit Reviews
by Ouai
Updated November 11, 2026
Lightweight spray smooths fine hair, tames frizz, and protects from heat; buildup risk.
What the community says
A silicone-rich leave-in spray with dimethicone, oils, panthenol, and amino acids, aimed at smoothing fine, dry, frizz-prone hair before blow-drying. It layers nicely in tiny amounts, though fragrance is strong and overapplication leaves buildup or coated strands.
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Full ingredient list · 64
Ouai Leave In Conditioner ingredients
Aqua / Water / Eau, Dimethicone, Cetearyl Alcohol, Parfum / Fragrance, Quaternium-91, Adansonia Digitata Seed Oil, Argania Spinosa Kernel Oil, Oenothera Biennis (Evening Primrose) Oil, Tocopheryl Acetate, Hydrolyzed Rhodophyceae Extract, Tamarindus Indica Extract, Panthenol, Arginine, Aspartic Acid, PCA, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Sodium Hyaluronate, Brassica Campestris/Aleurites Fordi Oil Copolymer, Cetrimoniumchloride, Glycerin, Behentrimonium Chloride, Myristyl Myristate, Siliconequaternium-16, Leuconostoc/Radish Root Ferment Filtrate, Butylene Glycol, Undeceth-11, Butyloctanol, Guar Hydroxypropyltrimonium Chloride, Undeceth-5, Silicone Quaternium-8, 3-O-Ethyl Ascorbic Acid, Sodium PCA, Sodium Lactate, Disodium EDTA, Citric Acid, Acetic Acid, Trideceth-10, Tocopherol, Iodopropynyl Butylcarbamate, Phenoxyethanol, Alpha-Isomethyl Ionone, Cinnamyl Alcohol, Citral, Citronellol, Citrusaurantium Bergamia Peel Oil, Citrus Aurantium Peel Oil, Citrus Limon Peeloil, Geraniol, Hexamethylindanopyran, Hydroxycitronellal, Limonene, Linalool, Linalyl Acetate, Pinene, Pogostemon Cablin Oil, Tetramethylacetyloctahydronaphthalenes
Listed in label order, highest concentration first. Linked ingredients have their own page.
Real Reddit threads — 101 mentions across 30 threads
Ouai Leave In Conditioner on Reddit, in one place — 30 threads from r/curlyhair, r/finehair and 2 more, summarized.
“I'll also add a few sprays of OUAI Leave-In Conditioner while it's still damp”
Positive
“Prior favorites include: very diluted Davines oi milk, Oribe run thru, Ouai leave in.”
Mentioned
“ouai leave in conditioner”
Positive
“Ouai Leave-in Conditioner (spray and brush through)”
Positive
“For the leave in condirionner: is it a natural one... I mean is it safe to use ??”
Positive
“Leave-In: Lush Super Milk or OUAI leave-in”
Positive
“I leave all my leave-in's in the shower and put it on immediately after rinsing my conditioner”
Positive
“I do Ouai leave in conditioner (got it on sale at Winners )”
Positive
Dupes & Alternatives
Often paired with
Products Redditors use alongside this one
Ouai
Mentioned together in 9 threads
“OUAI leave in conditioner and heat protectant. (Also, OAUI Detox Shampoo, but not every day.)”