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Highlights
Summary
Instantly hydrate and detangle even the finest strands with Biolage Hydra Source Daily Leave-In Tonic. This leave-in conditioner, with micro-filtered aloe vera and fermented hyaluronic acid, delivers softness, shine, controls frizz, repairs dry, tangle-prone hair, and protects against heat damage.
Benefits
- Quenches dry hair with weightless moisture, instantly detangling and conditioning for supreme softness and manageability.
- Tames flyaways and controls static, delivering 85% reduction in frizz for smooth, polished hair.
- Renews hair shine and optimizes moisture balance, contributing to overall hair health.
- Lightweight formula doesn't weigh hair down.
Key Ingredients
- Aloe: Nourishes hair, promoting lasting hydration.
- Hyaluronic Acid: Seals the cuticle while boosting hydration to strands.
Research Results
- 85% reduction in frizz after one use**
- **Hydra Source Daily Leave-In Tonic vs. non-conditioning shampoo.
Item 2637966
For an instant moisture boost and renewed hair shine, spray this detangler onto damp hair, combing from root to tip. This leave in conditioner helps shield locks from pollution and other environmental aggressors. No need to rinse!
Aqua / Water / Eau, Cetearyl Alcohol, Polysorbate 20, Behentrimonium Chloride, Parfum / Fragrance, Orbignya Oleifera Seed Oil, Cetyl Esters, Amodimethicone, Sodium Benzoate, Isopropyl Alcohol, Citric Acid, Limonene, Tocopherol, Trideceth-6, Chlorhexidine Dihydrochloride, Hexyl Cinnamal, Coumarin, Sodium Hyaluronate, Xylose, Panthenol, Ethylhexyl Salicylate, Aloe Barbadensis Leaf Juice, Cetrimonium Chloride, Linalool, Amyl Cinnamal, Geraniol, Isoeugenol, Alpha-Isomethyl Ionone, Hydroxycitronellal, Benzyl Benzoate, Cinnamyl Alcohol, Citronellol, Benzyl Alcohol, Potassium Sorbate
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
Recommend for dry hair! Best trio for the best hair.
I received this product in exchange for my honest review. The Biolage HydraSource Daily Leave-In Tonic is the final step in my HydraSource hair care trio, and it's the cherry on top. After loving the shampoo and detangling solution, I added this leave-in to my routine and instantly noticed an upgrad...
Most Helpful Critical Review
Good but not for my hair type, application needs improvement
[I received this product in exchange for my honest review] I have thin density 2a medium texture hair that is currently mid-back length. I tried this product a couple of times. For my first time with this product, I used the accompanying shampoo then the accompanying conditioner beforehand. It says ...
1088 results
I would buy again
Hair Type Wavy Hair
[I received this product in exchange for my honest review] I so love the simple packaging. Love the light, fresh scent. Clean and easy to use. Just apply and go. Keeps the frizz away, especially with this humidity.

Good stuff
Hair Type Very Curly Hair
I use this when my hair needs to be refreshed. Smells good and leaves my hair feeling soft and detangled. Primes it well for product

best hair product!
Hair Type Wavy Hair
I received this product in exchange for my honest review. I love how it made my hair feel so much softer and stronger. I have only used it once and already feel such a big difference. My hair no longer feels dry and delicate and it has even made my blow out last longer. Can't wait to use it again!
Love this leave in
Love this leave in! Smells great, makes me feel like I'm protecting in for all this Florida heat and humidity is doing as well as all of my styling.

Love!
Hair Type Straight Hair
I received this product to try out and review. I've been trying out the shampoo, conditioner, and leave-in trio for about a month and really love it. Not only do the products smell phenomenal, they provide lightweight hydration and detangling. Will definitely repurchase!