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Highlights
Summary
Discover Full Rescue Densifying Leave-In Spray for Thin Hair, infused and micro-dosed with steam-distilled rosemary oil and triple-purified niacinamide. This leave-in thickens hair without sacrificing softness or movement. Hair looks and feels fuller and detangled with controlled flyaways.
Benefits
- Instantly thickens the look and feel of hair
- Controls flyaways
- Detangles hair for easy styling
- Creates a fuller look and feel
- Softens hair
- Hair feels silky soft after one use
Key Ingredients
- Bio-based Rosemary Oil (steam-distilled):
- Fortifies at the root
- Invigorates strands to prevent hair fall due to mechanical stress
- Niacinamide (triple-purified):
- Supports a healthy skin barrier by balancing the scalp
- Protects from oxidative stress caused by external aggressors
Research Results
- Hair looks and feels fuller
- Hair feels silky soft after one use*
- *consumer test after application of Full Rescue Shampoo, Conditioner, and Densifying Leave-In Spray
Item 2637948
For a fuller look, spray from root to tip on wet hair. Leave in and style as desired. Controls flyaways and detangles for easier styling.
Aqua / Water / Eau, Alcohol Denat., Pvp, Peg-40 Hydrogenated Castor Oil, Triethanolamine, Propylene Glycol, Phenoxyethanol, Parfum / Fragrance, Acrylates/Beheneth-25 Methacrylate Copolymer, Caprylyl Glycol, Biotin, Limonene, Niacinamide, Rosmarinus Officinalis Leaf Oil / Rosemary Leaf Oil, Hexyl Cinnamal, Coumarin, Benzyl Alcohol, Zinc Pca, Safflower Glucoside, Linalool, Amyl Cinnamal, Geraniol, Isoeugenol, Alpha-Isomethyl Ionone, Hydroxycitronellal, Benzyl Benzoate, Cinnamyl Alcohol, Citronellol, Tocopherol, Sodium Citrate
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Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
I am in love with this product
I received this product in exchange for my honest review. The Biolage Full Rescue Densifying Leave-In Spray really impressed me with its quality. The formula feels lightweight yet effective—it doesn't leave any sticky or greasy residue, which is a huge win for my fine, thin hair. The packaging is s...
Most Helpful Critical Review
Interesting Scent
[I received this product in exchange for my honest review] I have always loved this brand, and have purchased products by them many times in the past few years, so I was excited to try this leave in conditioner. My hair is wavy, and at the time I first tried the product, my hair was very dry from no...
460 results
Interesting scent
Hair Type Straight Hair
Tried this after the shampoo and the mask. I was not a fan of the lingering scent. It was not horrible but enough to cause a headache. Using the product my hair was softer but I also noticed I had some residue. I struggle with my hair as it is and seeing residue made me dislike it.
Decent leave-in conditioner
Hair Type Very Curly Hair
I received this product in exchange for my honest review. While I love the other products in the Biolage Full Rescue line, I'm not sure how I honestly feel about the leave-in spray just yet. It doesn't seem like it does enough for my hair. It also leaves my hair feeling a little sticky. I'm more of a fan of cream based leave-ins, so I may not reach for this leave-in very often. It smells lovely and I will keep using it to see if I notice a difference with my hair.
Average hair care line
Hair Type Wavy Hair
[I received this product in exchange for my honest review][I received this product in exchange for my honest review] This product smells spa like and scientific at the same time w the combo of hero products niacinamide and also rosemary. I didn't use it w the leave in and shampoo everytime but will try to do so moving forward to see if I notice more improvement but overall haven't noticed increased thickness, fullness, or new hair growth.
Love it
Hair Type Wavy Hair
[I received this product in exchange for my honest review] I've been using the Biolage Full Rescue Densifying Leave-In Spray regularly and it's become a nice step in my routine. The formula feels really lightweight, which is great because it doesn't make my hair greasy, sticky, or weighed down like some other leave-ins can. After spraying it in, my hair feels refreshed and looks a little fuller and more lifted at the roots. Over time, I've noticed that my hair feels a bit stronger and more manageable too. The scent is clean and pleasant without being overpowering, and it layers well with other styling products. I wouldn't say the results are dramatic — it won't instantly transform fine hair into thick strands — but it does provide a healthy boost, some volume, and a nice lightweight conditioning effect. For everyday use, it's a reliable product that adds subtle fullness and leaves hair feeling fresh and cared for.
Nice and easy product
Hair Type Wavy Hair
[I received this product in exchange for my honest review] Pretty nice! Smells good and my hair feels super smooth using it. Easy to use and a nice to have!