HairOS™ Precision Growth System
Genetic Test and Custom Topical
HairOS™ Precision Growth System
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.
- 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*
HairOS Test
Health and Hair Loss Insights
$250.00
One time purchase
$250.00
One time purchase
Custom Topical
Free
Month
Hair growth based on your biology
$0.00
first monththen $98/mo
$0.00
first monththen $98/mo
$348.00
$250.0028% Off
Free Shipping
Personal Data Secure
CLIAA Lab Certified
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*
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
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
Results for thousands of customers
Whatever your hair growth needs, we’ll create a custom
topical that delivers real results.
Before
After
Results
54 years old
of Roots by GA custom topical
Before
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
After
Results
42 years old
of Roots by GA custom topical
Before
After
Results
34 years old
of Roots by GA custom topical
Before
After
Results
38 years old
of Roots by GA custom topical
How it works
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.
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.
3
3
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.
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.*
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.
Caffeine
Stimulates blood flow to the scalp, supporting follicle health and especially the hair growth phase.
Dutasteride
Inhibits the production of the Dihydrotestosterone (DHT) hormone that causes hair loss.
Spironolactone
Slows androgen production, decreasing testosterone. May act as combined or solo therapy for androgenic alopecia.
Tretinoin
Supports healthy skin cell turnover and boosts Minoxidil absorption for better hair growth.
Vitamin D
Promotes healthy skin, hair, and the creation of new hair follicles.
Cetirizine
May boost hair density and thickness by targeting the prostaglandin pathway, especially in patients with androgenic alopecia.
Who HairOS™ Is For
Early Signs of Thinning
Noticing shedding, a receding hairline, or crown thinning.
Tired of Guessing Treatments
For anyone who wants clear guidance on what will actually work.
Want a Personalized Plan
Treatment recommendations tailored to your genetics.
Want to Avoid Trial and Error
Skip wasting months on products that won’t help.
Exploring Prescription Care
Ideal if considering medicated or dermatologist-guided solutions.
Curious About Genetic Impact
See if you’re genetically prone to common hair or scalp issues.
Early Signs of Thinning
Noticing shedding, a receding hairline, or crown thinning.
Tired of Guessing Treatments
For anyone who wants clear guidance on what will actually work.
Want a Personalized Plan
Treatment recommendations tailored to your genetics.
Want to Avoid Trial and Error
Skip wasting months on products that won’t help.
Exploring Prescription Care
Ideal if considering medicated or dermatologist-guided solutions.
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
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.
-
MUC1Mucin 1
This gene is related to magnesium absorption. Variants could indicate if magnesium supplementation might benefit your hair health.
-
DMGDHDimethylglycine Dehydrogenase
This gene affects your body’s selenium levels. Low selenium can impact hair health, so variants here might suggest the need for supplementation.
-
SULT1A1Sulfotransferase 1A1
This gene affects how well you activate minoxidil. Variants may suggest the need for a higher dose or additives like tretinoin.
-
SRD5A1 & SRD5A2Steroid 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.
-
MTHFRMethylenetetrahydrofolate 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 & GPR44-2Prostaglandin 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
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?