Strand Defender
Strand Defender
Lightweight Protective Conditioner
A lightweight, physician-formulated conditioner with natural ingredients that provides multi-layer protection to strengthen the hair cortex and reinforce the cuticle to defend against damage. Clinically shown to replenish moisture and improve elasticity so hair stays strong, smooth, and healthy.1
Choose an Option:
Clinically effective
Physician-formulated
Color and extension safe
After shampooing, apply a dollop of conditioner from mid-shaft to ends. Leave for at least 2 minutes and rinse.
Defends hair against damage1
Replenishes hair elasticity and moisture1
Strengthens for improved hair health1
Silicones, sulfates, hormones, drugs, parabens, phthalates, synthetic fragrance.
Strengthen and defend hair against damage.
What you see and feel:
Damaged hair that lacks elasticity and is more prone to breakage and splitting, making hair appear dry, frizzy, and frayed.
What is happening:
Since hair is not a living tissue, it cannot be repaired once it’s damaged. Color-treating hair, using sulfate-based shampoos, wet brushing, heat styling, and the environment can harm the hair’s protective outer cuticle, leaving the inner layers (including the cortex) more vulnerable to damage.
How we address it:
Our lightweight, silicone-free conditioner is a science-backed formula that helps defend hair from damage by replenishing lost moisture, maintaining the integrity of the hair cuticle, and strengthening hair at the cortex. The result: hair that remains healthy, strong and hydrated without being weighed down.
Improve elasticity and overall hair health.
Improve elasticity and overall hair health.
Before
After
Stephanie, 55
Moisturizes
Strengthens
Using
Strand Defender Conditioner
Before
After
Olga, 53
Strengthens
Moisturizes
Using
Strand Defender Conditioner
Before
After
Michelle, 57
Smoothes
Using
Strand Defender Conditioner
Other products don’t compare. See how Nutrafol Strand Defender Conditioner is setting the standard.
Other products don’t compare. See how Nutrafol Strand Defender Conditioner is setting the standard.
Nutrafol Strand Defender Lightweight Protective Conditioner
Other Conditioners
Physician- formulated
Clinically tested
some
Silicone-free
some
Improves elasticity
few
Reduces breakage
few
How to use:
1
After shampooing, apply a dollop of
conditioner from mid-shaft to ends.
2
Leave for at least 2 minutes.
3
Rinse with water.
How to use:
1
After shampooing, apply a dollop of
conditioner from mid-shaft to ends.
2
Leave for at least 2 minutes.
3
Rinse with water.
We’re serious about facts.
Ask away.
The hair strand is made up of 3 different parts: the cuticle and cortex are found in every hair type, while the medulla is only present in thicker hair types.
The cuticle is the outer layer of the hair made of overlapping cells that resemble fish scales. It is typically 6-10 layers deep. A healthy cuticle is smooth and flat to give hair shine and protect the inner parts of the hair from damage. Chemical processes and environmental aggressors can lift the cuticle and disrupt this balance, causing hair to become dry, brittle, and weak—which ultimately leads to breakage.
The cortex forms the hair’s main bulk and pigment. It consists of long keratin filaments, which are held together by disulphide and hydrogen bonds. The health of your cortex depends largely on the integrity of the cuticle protecting it.
The medulla is the innermost layer of the hair. It consists of a soft, thin core of transparent cells and air spaces. Thinner hair types do not have a medulla layer, resulting in less bulk and finer hair.
Strand Defender is formulated with natural ingredients and natural fragrance. If you have a sensitive scalp, we recommend doing a patch test before incorporating the product into your hair wellness routine.
Yes, it is vegan.
Yes, it is safe and has been tested for color-treated hair.
No, you do not need to use these formulas together to experience the benefits. However these products were formulated to complement each other for your strongest, healthiest hair yet.
Yes! It was formulated to work for all hair types and ethnicities.
Apply Strand Defender from mid-shaft to the ends of hair after shampooing, leave on for at least 2 minutes, then rinse. For a deeper conditioning experience, leave on for 10 minutes, then rinse.
Our competitors claim to reverse or repair damaged hair, but this is impossible because hair is not a living thing. Strand Defender defends hair and stops damage before it starts. Our science-backed, silicone-free formula uses natural ingredients to provide multi-layer protection so that hair can stay strong, smooth, and healthy.
Hair will feel more moisturized, smoother, and easier to manage after one use. Use consistently to protect hair from damage over time.
Your usage will differ based on how often you wash your hair and how long or thick your hair is.
Have questions?
Chat with our customer support team.
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We’re here for you.
More than a supplement subscription, we’re committed to supporting you as you grow.