Use the following zoom and pan buttons to control the image that follows them
Tab through the images or use the previous or next buttons to navigate each product image
Summary
Highlights
Discover Full Rescue Densifying Leave-In Spray 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
We think you'll like
12 items
Use previous and next buttons to navigate the slides of the We think you'll like Product Carousel
Similar items for you
12 items
Use previous and next buttons to navigate the slides of the Similar items for you Product Carousel
Sponsored products
12 items
Use previous and next buttons to navigate the slides of the Sponsored products Product Carousel
Questions
Ask a QuestionWhat do you want to know about this product?
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...
436 results
Love this line of products!
Hair Type Straight Hair
[I received this product in exchange for my honest review] I have thinning, straight, fine hair. Shoulder length. It is dull and lifeless. This line makes it feel full and voluminous. I even use this spray when I don't use the shampoo and still love the results. Definitely one of the best hair products I've found!
New fave!
Hair Type Very Curly Hair
I received this product in exchange for my honest review I love Biolage and it's typically because of their scent. I love that it has Rosemary oil & Niacinamide this concentrate really gives my hair that extra boost. I have a lot of breakage and lost of hair loss. This helps me keep my hair as balance as possible.

Love this product
Hair Type Wavy Hair
I have very thin and damaged hair. When I first got the product I didn't realize that FULL RESCUE was a product to make your hair fuller. I thought it was just for damaged hair. After using for three weeks I saw my hair looking fuller and healthier! I ended up reading that the product was to make her hair fuller, hence the name "full rescue" lol. This product smells amazing, I spray it in my hair throughout the day for a fresh scent and I paired it with the Restorative Mask and the shampoo. I would recommend these products. 10 out of 10!

I would definitely buy this product
Hair Type Wavy Hair
[I received this product in exchange for my honest review] I have always loved this brand but I have never tried the thin hair line. A little goes a long way and I love the way this made my hair feel. The spray part didn't work great for me so I spray into my hands then put in my hair but still love this product. And it also smells amazing.
Absolute necessity!!
Hair Type Wavy Hair
This product is absolutely amazing! After just a few weeks of using I have noticed a huge improvement in my hairs texture and softness! I have made this a must have in my hair products! [I received this product in exchange for my honest review]