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D.N.A. Density Nourishing Actives Scalp Serum for Hair Growth

$42.00

This lightweight, fast-absorbing, water-based serum is formulated with over 21 density-nourishing actives to support hair growth and scalp health. With daily use, it boosts the look of thickness, adds hydration, and empowers overall hair and scalp vitality.

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Density Nourishing Actives Scalp Serum:
  • CLEAN INGREDIENTS
  • RESPONSIBLY SOURCED
  • BLACK OWNED
  • VEGAN & CRUELTY FREE
  • DERMATOLOGIST TESTED

FORMULA STANDARDS

Performance

This lightweight, fast-absorbing, water-based serum is formulated with 21+ density-nourishing actives to promote hair growth and scalp health. With daily use, it boosts thickness, adds hydration, and enhances overall hair and scalp vitality.


*In an independent consumer perception panel of 39 women aged 18 to 65 with textured, thinning hair:

- 90% experienced an increase in hair's density after using the serum daily for 8 weeks


- 87% noticed hair appeared to be stronger than before after using the serum daily for 8 weeks


- 87% noticed a reduction in hair loss/shedding after using the serum daily for 16 weeks in addition to the regimen of Sienna Naturals products (H.A.P.I. Shampoo, Plant Power Repair Mask, Dew Magic Leave-in Conditioner, Dream Curl Cream)


Made for

Thinning hair

All textures

Parched or heat-damaged hair 

Dry, sensitive, irritated scalps 

High and low porosity hair 

Relaxed, bleached, and color-treated hair

CUSTOMER CLAIMS

90%

SAID "PERCEIVED INCREASE IN HAIR'S DENSITY IN 8 WEEKS”

87%

SAID “HAIR APPEARED STRONGER AFTER 8 WEEKS”

87%

SAID “REDUCTION IN HAIR LOSS/SHEDDING AFTER 16 WEEKS”

*CLAIMS BASED ON AN INDEPENDENT CONSUMER TESTING PANEL OF 39 WOMEN WITH TEXTURED, SHEDDING HAIR OVER 16 WEEKS.

HOW TO USE

Before you begin treatment, conduct a patch test. Shake well and pump 2-3 times to fill the dropper, then apply directly to the scalp and massage in. Let dry.

For best results, use on a dry, clean scalp once daily.

PRO TIP

Pro Tip: Apply D.N.A. Scalp Serum at night, using your fingertips or our Scalp Clearing Massager. Let it work its magic while you sleep!

COMPLETE YOUR RITUAL
Sienna Naturals silk pillow case (2 pack) in ivory.Sienna Naturals silk pillow case (2 pack) in ivory.
$117.00 $156.00

Indulge in the ultimate luxury of our Silk Pillowcase. Designed to protect your hair and skin while you sleep, its pure silk composition adds a touch of elegance to your bedroom. 

This set includes 2 pillowcases. 





Wash Day DuoWash Day Duo
BEST SELLER

$60 VALUE

The classic wash day ritual for all texture types.

Dream TeamDream Team

$62 VALUE

Get juicy dream curls with humidity and frizz protection.

SCENT PROFILE

No added fragrance, but reminiscent of fresh herbs.

FEEL

Lightweight and emollient with a cooling sensation.

NATURALS

  • BIOTIN: Essential for keratin production, crucial for hair strength and growth.
  • ALOE VERA STEM CELL EXTRACT: Provides powerful anti-inflammatory, hydration, and moisturization properties
  • ROSEMARY EXTRACT: Increases circulation and promotes hair density and vitality.
  • CAFFEINE: Stimulates hair follicles and helps reduce hair loss.
  • TUMERIC ROOT EXTRACT: Anti-inflammatory and supports a healthy scalp environment.

SCENT PROFILE

No added fragrance, but reminiscent of fresh herbs.

FEEL

Lightweight and emollient with a cooling sensation.

NATURALS

  • BIOTIN: Essential for keratin production, crucial for hair strength and growth.
  • ALOE VERA STEM CELL EXTRACT: Provides powerful anti-inflammatory, hydration, and moisturization properties
  • ROSEMARY EXTRACT: Increases circulation and promotes hair density and vitality.
  • CAFFEINE: Stimulates hair follicles and helps reduce hair loss.
  • TUMERIC ROOT EXTRACT: Anti-inflammatory and supports a healthy scalp environment.

Water (Aqua), Butylene Glycol, Heptyl Glucoside, Glycerin, Helianthus Annuus (Sunflower) Seed Oil, Biotin, Curcuma Longa (Turmeric) Root Extract, Aloe Vera Callus Extract (Stem Cell),  Caffeine, Rosmarinus Officinalis (Rosemary) Flower/Leaf/Stem Extract, Hydrolyzed Walnut Extract, Larix Europaea Wood Extract, Sodium Metabisulfite, Vitis Vinifera Fruit Meristem Cell Culture, Potassium Sorbate, Sodium Benzoate, Phenethyl Alcohol, Citric Acid, Camellia Sinensis Leaf Extract, Hydrolyzed Eruca Sativa Leaf,  Zinc Chloride, Pentylene Glycol, Xanthan Gum, Polyglyceryl-3 Diisostearate, Caprylhydroxamic Acid, Aloe Barbadensis Leaf Juice, Carthamus Tinctorius (Safflower) Flower Extract, Hibiscus Sabdariffa Flower Extract, Sodium Phytate.

FAQ

Can I use D.N.A. Scalp Serum daily?

Yes! This is actually our recommendation for best results and is what our subjects did in the study.

When will I start to see results?

While 90% of our clinical testing participant’s saw growth after 8 weeks, we recommend daily application for 16 weeks for best results. Results may vary.

How long does one bottle last?

One bottle should last around 1 month, but it depends on how much you use and how many treatment areas you are focused on daily. 

I bought a 3-pack. Can I return it?

For those located in the US, we offer a money-back guarantee on your first 1-bottle supply of D.N.A. Scalp Serum. We will not be accepting returns for orders containing a 3-pack supply of  D.N.A. Scalp Serum. Please also note that to receive a refund on your products you will be responsible for paying for your own shipping costs. Shipping costs are non-refundable. Please contact us at customerservice@siennanaturals.com to get your return started.

If I stop this product, will my thinning/low density return?

Thinning/low density may return as the active ingredients work to keep the follicle in its growth phase. 

What clinical test was done on D.N.A. Scalp Serum?

D.N.A. Scalp Serum completed an independent consumer perception panel of 39 women aged 18 to 65 all having identified thinning, textured hair. The before and after images on this page document their progress from day 1 to week 16. Here are the results:

- 90% experienced an increase in hair's density after using the serum daily for 8 weeks

- 87% noticed hair appeared to be stronger than before after using the serum daily for 8 weeks

- 87% noticed a reduction in hair loss/shedding after using the serum daily for 16 weeks in addition to the regimen of Sienna Naturals products (H.A.P.I. Shampoo, Plant Power Repair Mask, Dew Magic Leave-in Conditioner, Dream Curl Cream)

The consumer perception panel was done on women with thinning textured hair. I am not a woman and/or I do not have textured hair, but my hair is thinning. Will the product work for me?

We did our consumer test on this particular audience because most hair growth solutions are texted exclusively on caucasian male patterned baldness. With that said, we've found here at Sienna Naturals, whenever we design for the textured hair audience, we're solving problems to such an extent that our products are a great solution for many hair types and concerns.

SIENNA DIFFERENCE

ROOTED TECHNOLOGY™

Powerful naturals are elevated with molecular chemistry for products that work.

CLINICALLY PROVEN FOR TEXTURED HAIR

Dermatologist tested to support scalp and follicle health with proven results.

BEAUTY UNCOMPROMISED

Achieve your style goals with hair health, body wellness, and planet-friendly clean formulas.

WHAT THEY’RE SAYING

“growth results out of this world. I have never had hair this long.”

Jenni J.

“After pregnancy and a hormonal problem, my hair fell out, especially in the forehead area. I have been using the product for 4 weeks and it has worked wonders for me. ”

Emma A.

“I am a woman with bleached blonde, fine, thin hair. I use this serum before bed and have noticed many new baby hairs. My hair is shedding less and staring to feel fuller. This serum definitely helped me with hair loss!”

Renee L.

“Love the tingling sensation and mintiness of the product, and it’s been growing back my edges!!”

Lisa H.

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