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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
- This hydrating mask deeply infuses dry, thirsty hair with vital moisture and nourishment.
- Helps prevent breakage and promotes strength, leaving hair feeling softer, healthier, and more resilient.
- Experience 5x more hydration and 14x smoother hair after just one use* for ultimate Hair Repair and Hair Shine.
Key Ingredients
- Aloe: Nourishes hair, promoting lasting hydration.
Research Results
- 5x more hydration after one use*
- 14x smoother hair after one use*
- Hydrated, manageable, and softer feeling hair
- *Hydra Source Shampoo and Deep Treatment Pack vs. non-conditioning shampoo.
Item 2637964
Spray onto damp hair, combing from root to tip, for an instant moisture boost and renewed shine. Helps shield locks from pollution and other environmental aggressors. Leave-in formula - 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
Good conditioner
Hair Type Wavy Hair
Their packaging was amazing and very effective. The ingredients are very clean and the scent isn't too strong. I got this for honest review and I would recommend this product for any type of hair. I usually don't use any conditioner but this one worked very well with my hair type and the products are very clean.

Okay!
Hair Type Straight Hair
[I received this product in exchange for my honest review] This product made my hair soft but it didn't detangle as well as some of my other faves. I also wasn't crazy about the scent. I probably won't purchase this one but my hair did look and feel soft while I was using!

Control frizz
Hair Type Straight Hair
[I received this product in exchange for my honest review] The Biolage Hydra Source Daily Leave-In Tonic is lightweight but really effective. It gives my hair an instant boost of moisture and makes it feel softer and more manageable without weighing it down. I like that it helps control frizz and adds a healthy shine, plus the fresh clean scent is a nice bonus. Perfect for daily use, especially if your hair tends to get dry or needs a hydration refresh.
Great for tangles and dryness
Hair Type Wavy Hair
[I received this product in exchange for my honest review] This product is great for adding moisture and reducing tangles in the hair. I also find it helpful for combatting frizz!
So convenient
Hair Type Wavy Hair
[I received this product in exchange for my honest review] It's so convenient to use, I love keeping this by hand and I use right after showering/washing my hair. Great packaging for real