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Summary
Highlights
Give your hair protection that won’t weigh it down with Nutrafol's Strand Defender Strengthening Conditioner, physician-formulated made without silicones. Clinically tested to replenish moisture and improve hair elasticity while defending against daily damage that are color and extension-safe.
Benefits
- Detangles to help protect against hair thinning from breakage (1)
- Defends hair against daily damage (1)
- Improves hair elasticity and silicone-free moisture without the build-up (1)
- Strengthens for healthier-looking hair (1)
- Visibly improves hair texture (1)
- Conditions without weighing hair down
- Non-greasy
- Clinically tested
- Safe for sensitive skin
- Color and extension safe
- 100% natural fragrance
- Formulated without parabens, phthalates, silicones, sulfates
Research Results
- Reduces hair breakage by 31% *
- Improves hair moisture by 86%*
- In a clinical study (1)**:
- 94% of users felt hair was more hydrated
- 92% of users saw an improvement in the look and feel of their hair
- 89% of users felt their hair was not weighed down
- *vs untreated
- **After 2 weeks of using Root Purifier and Strand Defender together
- Nutrafol. Data on file. 2022.
Key Ingredients
- Ximenia Seed Oil: Provides intense, silicone-free moisture to smooth hair prone to daily damage.
- Gluconamide: Strengthen hair from the inside out, making hair more manageable over time and helping to reduce daily breakage
- Vegan Proteins: Peptides and wheat proteins utilize microscopic molecules to strengthen strands
- Vegan Proteins: Peptides and micro-proteins that help to strengthen strands.
Item 2644740
After shampooing, apply a dollop of conditioner from mid-shaft to ends. Leave on for at least 3 minutes and rinse. For best results, use with Root Purifier Scalp Microbiome Shampoo.
Precautions: For external use only. Avoid contact with eyes. Keep out of reach of children.
Water (Aqua), Cetearyl Alcohol, Glycerin, Brassicamidopropyl Dimethylamine, Behentrimonium Chloride, Isopropyl Myristate, Orbignya Speciosa Kernel Oil, Aspergillus Ferment, Hydrolyzed Wheat Protein, Hippophae Rhamnoides Fruit Extract, Arginine, Ximenia Americana Seed Oil, Hydrogenated Soybean Oil, Oryza Sativa (Rice) Bran Extract, Cocos Nucifera (Coconut) Oil, Linum Usitatissimum (Linseed) Seed Oil, Helianthus Annuus (Sunflower) Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Lactic Acid, Tartaric Acid, Guar Hydroxypropyltrimonium Chloride, Hydroxypropylammonium Gluconate, Polyquaternium-73, Hydroxypropylgluconamide, Isopropyl Alcohol, Tetrasodium Glutamate Diacetate, Sodium Benzoate, Potassium Sorbate, Benzyl Alcohol, Fragrance (Parfum), Citral, Geraniol, Limonene, Linalool.
This brand is excluded from most Ulta Beauty coupons.
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Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
Made My Hair Soft and Bouncy
Gifted by nutrafol. I see Nutraol everywhere—TV, my dermatologist's office, TikTok—I was very eager to try this! I have fine hair that has thinned out significantly since having two kids. My hair is also dry and lacks shine. Pretty much any products that say they will thicken or moisturize weigh dow...
Most Helpful Critical Review
SMELLS STRONG
Gifted by Nutrafol - wow is this strongly scented conditioner! So lemongrassy and overwhelming, I cannot use this regularly unfortunately. Make a fragrance free version and this would be a knockout product!!
14 results
Feels soft
Hair Type Wavy Hair
The Nutrafol Root Purifier Conditioner is a must-have! It perfectly complements the shampoo, leaving my hair feeling incredibly soft and hydrated without weighing it down. I've noticed less frizz and my hair is much more manageable. A great addition to my hair care routine! Complimentary from nutrafol

Love it
Hair Type Wavy Hair
This Conditioner is good, it's lightweight but still makes my hair feel insanely soft and healthy. It doesn't weigh down my hair at all, which I love because I have fine strands, but it still gives me that hydrated, silky feel. My hair feels stronger and less fragile when I brush it, and I've had way less breakage. It pairs perfectly with the shampoo and just leaves everything smoother, shinier, and way more manageable. Gifted by nutrafol
Made My Hair Soft and Bouncy
Hair Type Wavy Hair
Gifted by nutrafol. I see Nutraol everywhere—TV, my dermatologist's office, TikTok—I was very eager to try this! I have fine hair that has thinned out significantly since having two kids. My hair is also dry and lacks shine. Pretty much any products that say they will thicken or moisturize weigh down my hair. This conditioner actually felt very light on my hair and did not leave my hair feeling or looking greasy. My hair felt softer after using and was also easier to brush through when wet. When I styled with heat after using, my hair had more bounce and fullness. I would recommend using a pretty small amount of product—I felt that a little went a long way (makes it worth the investment because it will last forever!) I typically shampoo and condition once every 2-3 days and was able to stay on that schedule with this product. I liked the scent and the vegan ingredients.
Definitely buying again
Hair Type Straight Hair
I received this conditioner Complimentary from nutrafol. This conditioner is exactly what my thin, straight hair needed. The Strand Defender hydrates without weighing my hair down, leaving it soft, smooth, and easy to manage. What really stands out is how well it pairs with the Nutrafol Root Purifier Shampoo—the two together make my hair feel noticeably healthier and more resilient. I trust Nutrafol because it's physician-formulated, and trying this duo has only confirmed why the brand gets such glowing reviews. I'll absolutely be repurchasing!
Enjoyed
Hair Type Very Curly Hair
I was a bit nervous to try this but i enjoyed my overall experience with the conditioner, it really leaves the hair feeling nourished and capped paired with the shampoo. It really just set the stage for an amazing hair day. I have more curly hair and it works really well to keep my curls intact. Gifted by nutrafol