Unlock your full hair growth potential today

HairOS Test

4.6
102 Trusted Reviews

Genetic Test and Custom Topical

HairOS Test

4.6
102 Trusted Reviews

HairOS™ is a pharmacogenetic test built to optimize your hair-growth treatment plan. The report analyzes 15,000 genetic variants to help predict your response to the most effective medications and supplements.

It also evaluates 11 nutrient and scalp-health traits and 5 key hair-biology markers including androgenetic alopecia risk, alopecia areata, dandruff, thickness, and graying.

With a simple cheek swab, HairOS™ delivers a lab-grade, pharmacogenomic-style report that turns your DNA into clear guidance for what will work best for your hair.

  • Predicts Your Response to Treatments
  • Reduces Trial-and-Error
  • Actionable, Clear Recommendations
  • Hair & Scalp Health Insights
  • Easy At-Home Saliva Sample Collection
  • Personalized by Your DNA – No off-the-shelf formulas
  • Doctor-Designed – Dermatologist-approved treatment
  • Clinically Matched Ingredients – Evidence-based, never trendy
  • White-Glove Care – Human support when you need it
  • Fast Results – Plan ready in 10 days
  • Proven Outcomes – Results in 3–6 months*
Genetic Test

Hair Treatment DNA Test

30% OFF

Genetic Test

$179.00
$125.30

One time purchase

$125.30
$179.00

One time purchase

Custom topical

Custom Hair Growth Topical (60ml)

31% OFF

Custom topical

$129.00
$89.00

45ml monthly subscription

$89.00
$129.00

45ml monthly subscription

Dermaroller Applicator

Dermaroller Applicator

Dermaroller Applicator

$0.00

Gift with purchase!

$0.00

Gift with purchase!

Go Free Shipping Go Personal Data Secure Go CLIAA Lab Certified Go 99.9% Test Accuracy
  • Personalized by Your DNA – No off-the-shelf formulas
  • Doctor-Designed – Dermatologist-approved treatment
  • Clinically Matched Ingredients – Evidence-based, never trendy
  • White-Glove Care – Human support when you need it
  • Fast Results – Plan ready in 10 days
  • Proven Outcomes – Results in 3–6 months*

What We Test For And Why

Your genetic makeup and hormones play a key role in your hair loss and how your body responds to hair loss treatments. We analyze 20 genes that help us get a better understanding of your optimal treatment.

  • MUC1

    Mucin 1

    This gene is related to magnesium absorption. Variants could indicate if magnesium supplementation might benefit your hair health.

  • DMGDH

    Dimethylglycine Dehydrogenase

    This gene affects your body’s selenium levels. Low selenium can impact hair health, so variants here might suggest the need for supplementation.

  • SULT1A1

    Sulfotransferase 1A1

    This gene affects how well you activate minoxidil. Variants may suggest the need for a higher dose or additives like tretinoin.

  • SRD5A1 & SRD5A2

    Steroid 5-Alpha-Reductase

    These genes influence DHT levels, which affect hair loss risk. High activity may increase risk, suggesting DHT-blocking treatments like finasteride, dutasteride, or spironolactone.

  • MTHFR

    Methylenetetrahydrofolate Reductase

    This gene influences your body’s folate levels, which are essential for healthy cell growth, including hair follicles. Variants may impact your need for folate supplements.

  • GPR44-1 & GPR44-2

    Prostaglandin D2 Receptor

    These genes reveal your sensitivity to prostaglandin D2, linked to hair loss. Cetirizine may help by blocking this pathway.

Customer results

Results for thousands of customers

Whatever your hair growth needs, we’ll create a customer
topical that delivers real results.

Before Before
After After
Results
54 years old of Roots by GA custom topical
Before Before
After After

5 Months of Roots Topical

“I’m shocked how well this is working. 5 months for me and my hair is TWICE! as thick as it was.”

Results
47 years old of Roots by GA custom topical
Before Before
After After
Results
55 years old of Roots by GA custom topical
Before Before
After After
Results
42 years old of Roots by GA custom topical
Before Before
After After
Results
34 years old of Roots by GA custom topical
Before Before
After After
Results
38 years old of Roots by GA custom topical

Ingredients for growth

Our custom treatments combine proven prescription hair loss treatments and other effective clinically validated ingredients to achieve the best results.

Minoxidil

Promotes growth in hair follicles during the anagen phase.

Latanoprost

Extends the growth phase of the hair cycle, thereby increasing the density, thickness, and pigmentation of hair follicles.

Finasteride

Stops hair loss by targeting the enzyme that converts testosterone to DHT.

Melatonin

May reduce hair loss and boost regrowth by extending the growth phase, easing oxidative stress, and supporting scalp health.

FAQs

Your Questions, Answered

Here are some questions we usually get about Roots by GA. If you would like yours answered, please contact us.

Still have questions?

Email us at help@rootsbyga.com

View More FAQs
Why does a genetic test matter for hair loss? +

A genetic test provides valuable insights into how your unique genetic makeup may influence hair loss and your response to different treatments. By analyzing over 20 specific genes and biomarkers related to hair health, we can understand underlying factors contributing to hair thinning or loss. This allows us to personalize your treatment with ingredients that are more likely to work effectively for you. With a tailored approach, you’re not only improving your chances of seeing results but also minimizing exposure to ingredients that may be less beneficial for your hair type and genetic profile.

What types of hair loss can be helped? +
What ingredients are in Roots by GA's formulas, and how do they help with hair regrowt?h +
4.6
Based on 102 reviews
 

Comprehensive Hair Genetics
Analysis Report

Detailed genetic insights for personalized hair health optimization

GENETIC
PREDISPOSITIONS

  • Hair Loss
  • Hair Thickness
  • Hair Graying
  • Dandruff
  • Alopecia Areata

NUTRIENT
PROCESSING ANALYSIS

  • Essential Vitamins
  • Critical Minerals
  • Additional Nutrients

TREATMENT
RESPONSE PREDICTION

  • DHT Blockers
  • Follicle & Circulation Boosters
  • Supportive Treatments

PERSONALIZED
RECOMMENDATIONS

  • Treatment Regimen
  • Lifestyle Optimization
  • Supportive Treatments

Comprehensive Hair Genetics
Analysis Report

Detailed genetic insights for personalized hair health optimization

  • GENETIC
    PREDISPOSITIONS

    • Hair Loss
    • Hair Thickness
    • Hair Graying
    • Dandruff
    • Alopecia Areata
  • NUTRIENT
    PROCESSING ANALYSIS

    • Essential Vitamins
    • Critical Minerals
    • Additional Nutrients
  • TREATMENT
    RESPONSE PREDICTION

    • DHT Blockers
    • Follicle & Circulation Boosters
    • Supportive Treatments
  • PERSONALIZED
    RECOMMENDATIONS

    • Treatment Regimen
    • Lifestyle Optimization
    • Supportive Treatments

How it works

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1
step-1
1
5 Mins

At-home DNA Test

Your at-home DNA kit ships with a simple cheek swab and prepaid return label. Complete the swab and a quick questionnaire about your health history.

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2
step-2
2
2-3 DAYS

Insights delivered

We review your data and email your genetic report within 10 days. Important Note: Not every ingredient in your report will be included in your custom topical.

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2-3 WEEKS

Clinically Prescribed. Personally Delivered.

Get your prescription topical in as little as 6 days. We automatically ship a 45ml refill every 30 days. Pause, reschedule, or cancel anytime.

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4
step-4
4
3-6 Months

Results 3-6 Months*

After a 3-6 months of consistent use, many customers can begin to notice improvements in hair loss and varying levels regrowth.*

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