Aveda Smooth Infusion Leave-In Anti-Frizz Serum — 0.85 fl oz, 72-Hour Frizz Defense & Heat Protection

Aveda Smooth Infusion Style-Prep Smoother is a lightweight, silicone-free leave-in serum that smooths hair, helps fend off frizz for up to 72 hours, and shields strands from heat and UV stress.

Lightweight and designed to be used before styling, this pre-style primer refines hair surface texture so brushes and tools glide more easily. Formulated with 98% naturally derived ingredients, including a sand ginger–derived UV filter and a botanical oil blend, it provides weightless hydration without silicones while offering humidity resistance and heat protection up to 450°F. The formula is vegan, B Corp certified, and crafted without many common additives people avoid.

How does this serum make styling faster and smoother?

Applied to damp hair, the serum instantly reduces surface friction so combs and styling tools move through with less pull. That smoother surface also helps styles sit more predictably, which shortens blow-dry and finish times. It acts as a lightweight primer rather than a heavy cream, keeping hair flexible for shaping.

• Instant surface smoothing for easier detangling and styling
• Lightweight texture that won’t weigh hair down
• Works on damp hair prior to blow-drying or air-drying

Will it actually reduce frizz in humid conditions?

This formula contains an invisible polymer that repels moisture to help control frizz in high humidity. Laboratory testing on frizz-prone hair showed protection lasting up to 72 hours, though individual results depend on climate and hair type. It’s a silicone-free approach that relies on botanical oils and polymers for smoothing.

• Invisible polymer helps shield strands from excess moisture
• Botanical oils smooth cuticles for a sleeker finish
• Laboratory-tested frizz control up to 72 hours on frizz-prone tresses

How does it protect hair from heat and sun exposure?

The serum includes a UV filter sourced from sand ginger that helps reduce drying from sun exposure and thermal styling. It’s formulated to offer protection during heat styling up to 450°F, making it suitable as a pre-blow-dry or pre-flat-iron treatment. The lightweight formula pairs protection with conditioning without adding heavy residue.

• Sand ginger–derived UV filter to help guard against sun-related dryness
• Heat protection rated for styling temperatures up to 450°F
• Conditions with botanical Kalahari melon and Tamanu oils for smoother cuticles

How should I use it and what hair types benefit most?

Work a small amount between your palms and distribute through damp hair from mid-length to ends before styling. It’s formulated for a broad range of hair textures that want reduced frizz and easier styling—especially useful for hair that reacts to humidity or needs a lightweight primer. Because it’s silicone-free and lightly hydrating, it’s suitable for fine to medium hair as well as textured hair seeking frizz control without heaviness.

• Apply a small amount to damp hair before blow-drying or air-drying
• Good for fine, medium, and many textured hair types needing anti-frizz support
• Vegan, cruelty-free, and free from common synthetic additives

Who this is for: This pre-style smoothing serum is geared toward anyone who wants a lightweight, plant-forward primer that makes hair easier to style, reduces humidity-driven frizz, and adds heat and UV protection without silicones. It suits those looking for cleaner ingredient choices—vegan, B Corp certified, and free from many synthetic ingredients—while still delivering salon-grade manageability and smoother-looking hair.

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.