Best Hair Sprays for Thinning Hair of 2026

Paisle Botanics Biotin Hair Thickening Spray is an all-natural texturizing spray that boosts hair growth and thickens thin hair in seconds. Infused with biotin, vitamin, protein & caffeine, it blocks the DHT hormone, prevents hair loss and encourages healthy hair regrowth. This lightweight spray leaves no sticky residue or build-up, making it perfect for all hair types, including color-treated and keratin-treated hair. It can be used as a pre-styler to give layered texture and is recommended by stylists.

Toppik Colored Hair Thickener Spray is a hair building fiber that instantly fills in thinning areas and gives the appearance of fuller, thicker hair. It has unique pigments that match your hair color and hide exposed scalp, recommended to cover wider areas of thinning, scalp show-through and bald spots. It is also great as a root touch-up between colorings.

BondiBoost Hair Spray is a powerful leave-in treatment that addresses thinning and aging hair. Infused with plant-derived boosting ingredients, it helps strengthen hair, reduce split ends, and support healthy hair growth. This lightweight and non-greasy formula easily absorbs into your hair, providing a nourishing boost to promote thicker and fuller-looking hair. Whether you have wet or dry hair, simply spritz at the roots daily and massage in for best results. With BondiBoost Hair Spray, you can achieve the fuller hair you desire while enjoying the convenience of a vegan and cruelty-free product that is proudly Australian made.

Advanced Clinicals Biotin Hair Spray is a leave-in treatment that nourishes fine, damaged, or frizz-prone hair and supports scalp health for strong, thick hair. It is formulated with biotin, honey, and vitamins and nutrients to strengthen strands, fight fly-aways, restore shine, and deeply penetrate each strand to strengthen hair from within. Customers have reported that it makes their hair soft, fluffy, shiny, and more full.

The OUAI Thickening Spray is a great choice if you want to add instant volume and fullness to your hair. It works by boosting thickness from the roots to the ends, making it ideal for those with flat or thinning hair. You’ll enjoy long-lasting lift and body thanks to special volume polymers that keep your hair bouncy without feeling stiff or crunchy. Plus, this spray protects your hair from heat damage up to 450°F, so you can style with confidence while keeping your strands healthy. Simply mist it on damp hair before blow-drying for touchable, full-bodied volume that lasts all day.

Avenue Man Thickening Spray instantly boosts your hair’s volume and thickness, making fine or thinning hair look fuller and more textured. It offers a strong yet flexible hold that keeps your style intact all day without feeling sticky or crunchy. You can enjoy a natural or firm finish depending on your styling needs. The spray also protects your hair from frizz and humidity, so your look stays fresh regardless of weather or activity. Plus, it’s enriched with herbal extracts like sunflower and grape seed that help strengthen your hair and improve its overall health while leaving a pleasant, subtle vanilla scent.