Aveda Smooth Infusion Style-Prep Smoother Leave-In Serum, 3.4 fl oz — 72H Anti-Frizz & Heat Protection, Silicone-Free

Aveda Smooth Infusion Style-Prep Smoother is a lightweight, silicone-free leave-in serum that instantly smooths hair, shields against humidity for up to 72 hours, and helps protect hair from sun and heat styling.

Designed as a pre-styling primer, this 3.4 fl oz serum uses a 98% naturally derived formula to tame surface frizz, add weightless hydration, and support sleeker, easier styling. It blends a botanical oil complex with a sand-ginger–derived UV filter and an invisible polymer to repel moisture and reduce flyaways while remaining free of silicones and many common synthetic additives. The product features a Pure-Fume aroma of Australian sandalwood, bergamot, and palmarosa for a subtle scent during styling.

How does this serum make styling easier?

The serum smooths the hair cuticle and creates a uniform surface that reduces tangles and friction during blow-drying, flat-ironing, or air-drying. Because it’s weightless and silicone-free, it won’t leave hair heavy or greasy but still primes strands for a sleeker finish.

• Instantly smooths hair surface for faster blow-drying
• Leaves hair primed for thermal tools up to 450°F
• Light, non-greasy texture that supports manipulation and hold

Will it actually protect against humidity and frizz?

Laboratory testing on frizz-prone hair shows up to 72 hours of reduced frizz, thanks to an invisible polymer that helps repel moisture and reduce strand swelling in humid conditions. The formula helps maintain a sleeker look by limiting the water molecules that cause frizz.

• Invisible polymer forms a moisture-repellent layer
• Helps keep styles smoother in damp, humid climates
• Supports longer-lasting control without silicones

Does it protect hair from sun and heat styling?

The serum includes a UV filter derived from sand ginger to help defend hair from the drying effects of sun exposure. It’s also suitable as a pre-styling product when using heat tools, helping protect hair during styling up to 450°F when applied as directed.

• Sand-ginger–derived UV filter helps shield hair from sun damage
• Formulated to be used before blow-drying and thermal styling
• Supports protection when styling at high temperatures

How should I use the Aveda Smooth Infusion Style-Prep Smoother?

Use a small amount worked through palms and apply to towel-damp hair before styling to distribute evenly through lengths and ends. Follow with blow-drying, straightening, or air-drying according to your preferred routine; reapply sparingly only to areas that need extra smoothing.

• Apply to damp hair from mid-lengths to ends
• Use a small amount to avoid buildup—start with a pea-sized amount
• Style as usual; touch up only where frizz or flyaways reappear

Who is this for: Aveda Smooth Infusion Style-Prep Smoother is aimed at anyone who wants weightless frizz control and easier styling—especially people with frizz-prone, unruly, or texture-varied hair who prefer a formulation with high levels of naturally derived ingredients, no silicones, and a plant-forward scent. It’s suitable for daily pre-styling use and for those who value vegan, cruelty-free, and B Corp-certified personal care.

Ingredients

Ingredients: Water Aqua Eau, Propanediol, Cetearyl Alcohol, Dioctyldodecyl Dodecanedioate, Hydrogenated Castor Oil/ Sebacic Acid Copolymer, Calophyllum Inophyllum Seed Oil, Citrullus Lanatus (watermelon) Seed Oil, Butyrospermum Parkii (shea) Butter, Helianthus Annuus (sunflower) Seed Oil, Kaempferia Galanga Root Extract, Stearamidopropyl Dimethylamine, Behentrimonium Methosulfate, Dicaprylyl Ether, Dicetyldimonium Chloride, Tocopherol, Sodium Gluconate, Polyglyceryl-10 Pentastearate, Arginine, Lactic Acid, Hydroxypropyl Starch Phosphate, Cetyl Hydroxyethylcellulose, Sodium Stearoyl Lactylate, Behenyl Alcohol, Fragrance (parfum), Geraniol, Citronellol, Citral, Farnesol, Linalool, Isoeugenol, Limonene, Benzyl Alcohol, Benzyl Benzoate, Isopropyl Alcohol, Potassium Sorbate ILN49985 Please be aware that ingredient lists may change or vary from time to time. Please refer to the ingredient list on the product package you receive for the most up to date list of ingredients.