OUAI Hair Thickening Spray — Volumizing & Heat-Protectant Mist, 6 fl oz — Instant Thicker, Fuller-Looking Hair

OUAI Hair Thickening Spray is a leave-in volumizing mist that instantly creates thicker, fuller-looking hair while protecting against heat and supporting hair strength.

Designed for lifeless, fine, or thinning strands, this lightweight spray layers into damp hair to add body from root to tip without stiffness. The formula combines amaranth peptide and amino acids with flexible volume polymers to lift and thicken hair visually while providing heat defense up to 450°F (232°C). It’s a quick addition to your blow-dry routine for touchable bounce and longer-lasting shape.

How does this spray build noticeable thickness fast?

The spray deposits flexible polymers that coat each strand to increase diameter and create the illusion of more hair. Applied to damp hair before drying, it amplifies root lift and mid-length fullness so styles look denser right away.

• Micro-film forming agents create temporary strand thickening
• Even misting ensures coverage from roots to ends
• Works under styling heat to lock in added body

Will it weigh hair down or leave a crunchy finish?

No — the formulation is engineered to stay lightweight and flexible so hair remains soft and movable. You get lasting volume without the dry, crispy texture that some volumizers leave behind.

• Lightweight polymers for natural movement
• Non-stiff finish keeps touchable texture
• Layerable with other OUAI styling products

What role do amaranth peptide and amino acids play?

Amaranth peptide and amino acids help support hair resilience and look of improved strength while the spray delivers cosmetic thickening. They assist in smoothing cuticle irregularities so hair reflects more light and appears healthier.

• Amaranth peptide adds conditioning and fortifying support
• Amino acids help maintain strand integrity and smoothness
• Synergy of actives enhances appearance without buildup

How should I use it for best results on busy mornings?

Spritz the product evenly onto towel-damp hair from roots to ends, then blow-dry while lifting the roots with a round brush or your fingertips. For extra lift, apply a second light mist to dry hair at the roots and tousle with fingers to reactivate the polymers.

• Mist on damp hair before heat styling for maximum body
• Blow-dry while lifting sections to set volume
• Refresh dry styles with a light root spritz and scrunch

Who is this for: Ideal for people with fine, flat, or gradually thinning hair who want an instant visual boost without sacrificing softness. If you need a styling ally that adds density, defends against heat up to 450°F (232°C), and layers easily with your routine, OUAI Hair Thickening Spray in the 6 fl oz size is formulated to fit into daily styling for salon-worthy-looking volume.

Ingredients

Aqua / Water / Eau, Polysorbate 20, Vp/va Copolymer, Amaranthus Caudatus Seed Extract, Sodium Hyaluronate, Glycerin, Ceratonia Siliqua (carob) Seed Extract, Hydrolyzed Soy Protein, Zea Mays (corn) Starch, Polyquaternium-16, Hydroxypropylgluconamide, Hydroxypropylammonium Gluconate, Guar Hydroxypropyltrimonium Chloride, Polyquaternium-7, Pisum Sativum Sprout Extract, Ethylhexylglycerin, Tocopherol, Citric Acid, Tartaric Acid, Trisodium Ethylenediamine Disuccinate, Phenoxyethanol, Benzyl Alcohol, Potassium Sorbate, Sodium Benzoate, Parfum / Fragrance, Eugenol, Limonene, Linalool, Tetramethyl Acetyloctahydronaphthalenes, Eucalyptus Globulus Oil, Citrus Aurantium Bergamia Peel Oil, Citrus Limon Peel Oil, Mentha Viridis Leaf Oil, Pinene, Carvone, Linalyl Acetate, Lavandula Oil / Extract, Anethole, Terpineol."