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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
Works great on my hair!
Hair Type Wavy Hair
This Biolage Hydra Source Hair Tonic worked great on my natural wavy/curly hair. This daily leave in treatment helps keep my hair feeling and looking healthy. This is a product I definitely would purchase and continuing using. [I received this product in exchange for my honest review]

Not a fan
Hair Type Wavy Hair
Not sure why but this did not do anything for my hair except leave it dry and like it had a film In it. I tried using it for a couple weeks and it's not for me. There's no scent either.
Nourishing and soft hair after use
Hair Type Wavy Hair
[I received this product in exchange for my honest review] The Biolage Hydra Source leave in tonic spray is a nice treat for my hair after a shower. It's easy to spray on my wet hair and smells good. I wrap my hair in a hair towel for about 10-15 minutes before blow drying. Once fried, my hair feels nourished, soft, clean and hydrated. My hair feels good with a salon like feel afterwards.

Smooth and silky
Hair Type Wavy Hair
I received this product in exchange for my honest review. This product smells amazing and left my hair super soft and smooth.
Keeps my hair feeling healthy
Hair Type Wavy Hair
[I received this product in exchange for my honest review] This has been a great addition to my hair routine. I have noticed that my hair feels more hydrated and healthy when I use this compared to when I forget. It's super easy to apply - I just spritz it on after my shower and before I begin styling my hair.