Hair Health · Hair Loss Management Response
This report reads your DNA and sorts every result into one of five plain-language groups, so you can see at a glance what deserves attention and what does not. Nothing here is a diagnosis. A flagged result means your genetics place you above or below the average person for that trait — a reason to ask a question, not a reason to worry.
Hair Health — Your hair tells a unique story—one that's written in your genes. This report explores how genetic makeup influences various aspects of hair health like hair loss, dandruff, and more. We also analyze how you may respond to different hair regrowth strategies.
These are ordered by how closely they relate to your flagged results — not generic health advice. Marrow does not prescribe, dose, or tell you to take anything. Diet and lifestyle changes are listed first because they are yours to make. Anything you would swallow is listed separately, by name only, as something to raise with a clinician who knows your history and your medications.
Use a low-level laser therapy device, as directed by its manual or a healthcare professional, on the affected area.
Apply a caffeine-containing topical product to the area of concern once or twice daily.
Use the dropper to apply the solution (typically 0.05%), creating partings every few centimeters for thorough coverage.
Use your fingertips to gently massage your scalp in a circular motion for at least 5 minutes daily.
Apply a pea-sized amount of topical retinoid to clean, dry skin once every evening before moisturizing.
Of the 14 results in this package, these 3 came back furthest from the population average. Each one below explains what it is, where you sit, and which report it came from. Start here.
Loss) A 2019 study identified several genetic variants associated with dutasteride response.
The most significant finding was a SNP rs72623193 in the DHRS9 gene, which showed a negative correlation with treatment response.
DHRS9 is particularly interesting as it functions in both androgen metabolism and retinoid signaling pathways.
Loss) A study of 26,607 associated the ‘G’ allele of rs12724719 with an increased risk of male-pattern hair loss.
This variant has also been associated with lower retinoic acid levels.
Retinoic acid promotes hair growth, and carriers of this variant may especially benefit from supplementation with topical retinoic acid or retinol.
Not everything in a genetic report is a warning. These came back protective or better than average.
Key Takeaways: Risk factors for dandruff include age, stress, dry or oily skin, sensitivities, and impaired gut/skin microbiome.
If you have higher genetic risk, taking action on factors you can change may lower the overall risk.
is a common inflammatory skin condition that mainly affects the scalp.
Minoxidil Response Loss) Not everyone difference may be Minoxidil needs to called higher activity of for hair loss [R, The SULT1A1 gene this gene known as with the “T” allele carry this variant minoxidil [R, R, Researchers have SULT1A1 activity, clear.
Salicylic acid is issues like and thus minoxidil response R].
Loss) Genetics plays a crucial role in both the development of androgenetic alopecia (AGA) and the variability in response to treatments like finasteride.
Two key genes of interest are SRD5A2 and AR, both of which influence how the body processes and responds to androgens.
The SRD5A2 gene encodes the type II 5-alpha reductase enzyme, which converts testosterone into dihydrotestosterone (DHT).
The remaining results, grouped by what they mean. Every one of these is explained in full — with the genes and variants behind it — in the technical version of this report.
Genetics is a predisposition, not a verdict. The single most useful thing you can do with this document is take it to a clinician and talk through the flagged findings — especially any that line up with symptoms you already have or conditions that run in your family. Nothing here changes: your DNA is the same at 60 as it is today, so this report does not expire.
Genotyping was performed on DNA extracted from a buccal (cheek) swab using a genome-wide array. Results are derived from peer-reviewed genome-wide association data and, where applicable, published clinical guidelines. Each report was scored independently against its own reference set. Percentile figures describe where your result sits relative to a reference population.
This is a laboratory-developed test. It has not been cleared or approved by the U.S. Food and Drug Administration. Genotyping does not detect all variants in the genes assessed; the absence of a flagged result does not exclude risk. Predisposition is probabilistic and is modified by environment, lifestyle, ancestry and family history. Results must be interpreted by a qualified healthcare professional and must not be used alone to diagnose, treat, or alter any medication regimen. Marrow does not recommend, prescribe, or dose any supplement or medication.
| Performing laboratory | Gene by Gene, Ltd. |
| Laboratory address | 1445 North Loop West, Suite 760, Houston, TX 77008 |
| CLIA certification | CLIA #45D1102202 |
| CAP accreditation | CAP #7212851 · accredited through 7 October 2027 |
| Laboratory Director | Feng Zhou, PhD, MB(ASCP) |
| Specimen type | Buccal (cheek) swab — genomic DNA |
| Accession | MRW-26-48157A |
| Date reported | 29 July 2026 |
This specimen was tested at Gene by Gene, Ltd., 1445 North Loop West, Suite 760, Houston, TX 77008, under CLIA #45D1102202 and CAP #7212851. Laboratory Director: Feng Zhou, PhD, MB(ASCP). Marrow Health is not a clinical laboratory and does not perform testing; Marrow prepares and delivers this report from data produced by the performing laboratory named above. Report generated 29 July 2026 · Accession MRW-26-48157A · © 2026 Marrow Health.