Before
After 2 Weeks
Gianna
Visibly Reduced BreakageLess FrizzStronger Hair
UsingNutrafol Strand Serum
Images taken immediately after the first application of Nutrafol Strand Serum and after two weeks of continued use.
hurry—ends soon
FREE Signature Brush for the first
1000 purchases.*
1000 purchases.*
For 6x stronger hair that can grow longer.1
Physician-formulated with our patent-pending DualFusion™ Complex, this shake-activated serum unites a replenishing oil phase and a strengthening water phase to protect thinning strands, helping reduce breakage by 64%2 for stronger hair that can grow longer.
Strand Serum
$54
1 fl oz (30ml)
FREE Signature Brush*
One-time gift with a Strand Serum purchase. While supplies last.
Benefits
From the first use
Helps reduce breakage and split ends2 while delivering up to 72 hours of frizz reduction for smoother, more manageable hair.
After 1 week4
An 83% reduction in breakage.3 Women reported that their hair felt silky smooth.
After 2 weeks4
Hair is visibly healthier with noticeably improved hair quality. Hair feels softer and smoother.
Recommended Usage
Shake well. Start with 2–3 drops in your hand, adding more as needed. Apply to damp or dry hair, focusing on mid-lengths to ends. Style as usual.
Pro tip: Support growth with a Hair Growth Nutraceutical, then protect the strands you’ve grown with Strand Serum.
VEGANSafe for sensitive skinColor-safeExtension-safe100% Natural fragrance
Formulated without parabens, phthalates, silicones, sulfates, and synthetic fragrance.
hurry—ends soon
FREE Signature Brush for the first
1000 purchases.*
1000 purchases.*
For 6x stronger hair that can grow longer.1
Physician-formulated with our patent-pending DualFusion™ Complex, this shake-activated serum unites a replenishing oil phase and a strengthening water phase to protect thinning strands, helping reduce breakage by 64%2 for stronger hair that can grow longer.
Strand Serum
$54
1 fl oz (30ml)
FREE Signature Brush*
One-time gift with a Strand Serum purchase. While supplies last.
Benefits
From the first use
Helps reduce breakage and split ends2 while delivering up to 72 hours of frizz reduction for smoother, more manageable hair.
After 1 week4
An 83% reduction in breakage.3 Women reported that their hair felt silky smooth.
After 2 weeks4
Hair is visibly healthier with noticeably improved hair quality. Hair feels softer and smoother.
Recommended usage
Shake well. Start with 2–3 drops in your hand, adding more as needed. Apply to damp or dry hair, focusing on mid-lengths to ends. Style as usual.
Pro tip: Support growth with a Hair Growth Nutraceutical, then protect the strands you’ve grown with Strand Serum.
VEGANSafe for sensitive skinColor-safeExtension-safe100% Natural fragrance
Formulated without parabens, phthalates, silicones, sulfates, and synthetic fragrance.
Is breakage stealing
your length?
Your hair may be growing just fine. Breakage could be keeping you from seeing the length you want. Spot the signs:
Signs of damage like split ends.
Thinner-looking hair at the ends and fuller-looking at the roots.
Hair snaps while brushing or styling.
Hair seems stuck at the same length.
Style stressors like heat, dye, bleach, tight styles, or extensions.
Defy breakage with patent-pending
DualFusion™
Complex.
Water
Phase
Strengthens
the hair fiber
from within.
Oil
Phase
Helps seal
and protect the
strand surface.
The
Result
Reduced breakage, so
your hair can keep its
length.
Your length, uninterrupted.
1 / 4
Before
After 2 Weeks
Janet
more moisturizedLess Frizzvisibly shinier hair
UsingNutrafol Strand Serum
Images taken immediately after the first application of Nutrafol Strand Serum and after two weeks of continued use.
Before
After 2 Weeks
Donna
Visibly Reduced Breakagemore moisturizedStronger Hair
UsingNutrafol Strand Serum
Images taken immediately after the first application of Nutrafol Strand Serum and after two weeks of continued use.
Before
After 2 Weeks
Tiffany
Visibly Reduced BreakageLess FrizzStronger Hair
UsingNutrafol Strand Serum
Images taken immediately after the first application of Nutrafol Strand Serum and after two weeks of continued use.
Stronger Strands. Higher Standards.
The first strand serum to be NSF Certified for Sport®. Leaping
Bunny Certified. Always raising the bar for hair health.
Ingredients to strengthen and protect.
Milk Thistle Seed Extract
Composed of peptides that penetrate into the hair cortex to strengthen against breakage.
Wild Olive Extract
Helps hair feel soft and moisturized, while visibly sealing split ends.
Hemisqualane
Replenishes protective lipids on the hair cuticle to defend against breakage.
Rosehip Fruit Extract
Rich in vitamins, antioxidants, and fatty acids.
Not sure where to start?
Get a personalized recommendation
from the hair growth supplement
brand dermatologists trust most.
We’re serious about facts.
Ask away.
When can I start seeing results with Strand Serum?
When can I start seeing results with Strand Serum?
Instrumentation testing showed results starting with the very first application. From your first use, Strand Serum helps reduce breakage and split ends while delivering up to 72 hours of frizz reduction for smoother, more manageable hair.
In a consumer perception study, after 1 week, women with chemically treated, dyed/color-treated, or chemically straightened hair reported that their hair felt silkier and smoother.
After 2 weeks (5 uses on both damp and dry hair), you'll see even greater improvements, including an 83% reduction in breakage. Hair feels softer, looks shinier and healthier, with an overall improvement in hair quality.
In a consumer perception study, after 1 week, women with chemically treated, dyed/color-treated, or chemically straightened hair reported that their hair felt silkier and smoother.
After 2 weeks (5 uses on both damp and dry hair), you'll see even greater improvements, including an 83% reduction in breakage. Hair feels softer, looks shinier and healthier, with an overall improvement in hair quality.
What is the difference between the Strand Serum and Hair Serum?
What is the difference between the Strand Serum and Hair Serum?
Strand Serum is formulated to care for the hair fiber, strengthening and helping protect your strands from breakage at the mid-length to ends so that it can grow longer.
Hair Serum targets thinning hair directly at the scalp by replenishing nutrients and reducing visible hair fall and shedding caused by breakage for visibly fuller, thicker hair.
Hair Serum targets thinning hair directly at the scalp by replenishing nutrients and reducing visible hair fall and shedding caused by breakage for visibly fuller, thicker hair.
Can I use Strand Serum while pregnant or breastfeeding?
Can I use Strand Serum while pregnant or breastfeeding?
Yes. Strand Serum is suitable for use by individuals who are pregnant or breastfeeding when used as directed.
Should I apply it before or after heat styling?
Should I apply it before or after heat styling?
Apply Strand Serum before heat styling to help protect your hair from heat damage. Strand Serum provides heat protection up to 450°F (232°C) from curling irons, flat irons, and other heat-styling tools.
You can also reapply a few drops after styling for an extra boost of strength and protection.
You can also reapply a few drops after styling for an extra boost of strength and protection.
Is it normal for the formula to separate?
Is it normal for the formula to separate?
Yes. Strand Serum is formulated with two phases: a water phase and an oil phase. The water phase helps deliver ingredients deep into the hair cortex and strengthen the hair fiber while the oil phase helps replenish the hair's natural lipid barrier and smooth the cuticle.
Because these phases have different properties, they naturally separate over time. Simply shake well before each use to combine the two phases and ensure you receive the full benefits of the formula with every application.
Because these phases have different properties, they naturally separate over time. Simply shake well before each use to combine the two phases and ensure you receive the full benefits of the formula with every application.
Isn’t it counterproductive for there to be water-based ingredients if it’s helping protect hair from water and humidity? Why not just use oil-based ingredients?
Isn’t it counterproductive for there to be water-based ingredients if it’s helping protect hair from water and humidity? Why not just use oil-based ingredients?
The water in the formula isn't what causes frizz or humidity damage. Instead, it serves as a delivery vehicle, helping beneficial ingredients penetrate deeper into the hair fiber. Once the hair dries, those ingredients remain in the hair to strengthen from within.
The oil phase serves a different purpose by smoothing the hair cuticle and creating a lightweight protective barrier that helps repel humidity. Together, the water and oil phases form our DualFusion™ Complex, delivering strengthening ingredients deep within the hair while helping shield the outside of the hair from humidity. The result is stronger, smoother hair that's better protected against frizz.
The oil phase serves a different purpose by smoothing the hair cuticle and creating a lightweight protective barrier that helps repel humidity. Together, the water and oil phases form our DualFusion™ Complex, delivering strengthening ingredients deep within the hair while helping shield the outside of the hair from humidity. The result is stronger, smoother hair that's better protected against frizz.
Have questions?
Chat with our customer support team. Monday - Friday 8am to 7pm (Eastern).
We’re here for you.
More than a supplement subscription, we’re committed to supporting you as you grow.
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*Limited-time offer. Ends 10/6/26 at 11:59pm PST or while supplies last. Valid in the U.S. only for current customers, age 18+, on the myNutrafol app. Receive a complimentary gift of the boar bristle brush (value $129) with Strand Serum purchase. Gift is one-time, non-refundable, and not redeemable for cash or other products. Limit one per customer. Offer cannot be combined with other promotions. While supplies last. Void where prohibited. By participating, you agree to Nutrafol’s Terms of Use.
1. When using Nutrafol Shampoo, Conditioner, and Strand Serum on damp hair vs. non-conditioning shampoo. 2. After using on damp and dry hair. 3. After 5 uses on damp and dry hair vs. non-conditioning shampoo. 4. Based on a clinical study with a total of 59 women aged 18-55.