Unlock your full hair growth potential today

HairOS Test Original

4.6
102 Trusted Reviews

Precision Hair Growth Insights

HairOS Test Original

4.6
102 Trusted Reviews

HairOS™ combines advanced genetic testing with a custom prescription topical – designed specifically for your biology. A quick saliva swab analyzes thousands of genetic markers to predict how you’ll respond to proven hair-growth medications, nutrients, and actives. Your results are then used by our medical team to formulate a personalized topical treatment, delivered to you.

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$448.00 $250.00
29% OFF
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Add Your Custom Treatment
Get a personalized prescription topical based on your HairOS insights and get 29% OFF and your first month FREE.
HairOS Test One-time Purchase
29% OFF $350 $250 | One-time Purchase
Custom Topical Treatment then $98/mo after trial
Free First Shipment | then $98/mo after trial
  • Predicts Your Response to Treatments
  • Reduces Trial-and-Error
  • Actionable, Clear Recommendations
  • Hair & Scalp Health Insights
  • Easy At-Home Saliva Sample Collection
$350.00
Go Free Shipping Go Personal Data Secure Go CLIAA Lab Certified Go 99.9% Test Accuracy
  • Predicts Your Response to Treatments
  • Reduces Trial-and-Error
  • Actionable, Clear Recommendations
  • Hair & Scalp Health Insights
  • Easy At-Home Saliva Sample Collection

Get Answers to Your Hair Loss Questions

HairOS decodes your hair genetics.

By analyzing how your unique genetics affect hair growth, loss, and nutrient absorption, we can predict your response to the most common treatments — and guide you toward the ones that actually work for you.

Discover My Hair Genetics
Hair Genetics

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

Who HairOS™ Is For

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Early Signs of Thinning

Noticing shedding, a receding hairline, or crown thinning.

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Tired of Guessing Treatments

For anyone who wants clear guidance on what will actually work.

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Want a Personalized Plan

Treatment recommendations tailored to your genetics.

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Want to Avoid Trial and Error

Skip wasting months on products that won’t help.

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Exploring Prescription Care

Ideal if considering medicated or dermatologist-guided solutions.

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Curious About Genetic Impact

See if you’re genetically prone to common hair or scalp issues.

icon

Early Signs of Thinning

Noticing shedding, a receding hairline, or crown thinning.

icon

Tired of Guessing Treatments

For anyone who wants clear guidance on what will actually work.

icon

Want a Personalized Plan

Treatment recommendations tailored to your genetics.

icon

Want to Avoid Trial and Error

Skip wasting months on products that won’t help.

icon

Exploring Prescription Care

Ideal if considering medicated or dermatologist-guided solutions.

icon

Curious About Genetic Impact

See if you’re genetically prone to common hair or scalp issues.

This isn’t guesswork — it’s science.

Our DNA test is built on more than 42 peer-reviewed studies and over 100 scientific citations. From understanding minoxidil response genes to mapping DHT pathway sensitivity, every recommendation is rooted in validated research.

That means your plan is more than just personalized — it’s evidence-based.

“DNA-guided treatment improves response rates by matching patients to the right therapies faster.”

Dr. Omeed Ahadiat

Board-Certified Dermatologist

https://dev.rootsbyga.com/wp-content/uploads/2025/12/doctor-info.webp

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 15,000+ genetic variants to cut the guesswork and match you with the therapies your body will respond to.

  • 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.

 

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 regrowth +
4.6
Based on 102 reviews
 

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