Description
What is the DNA Hair Health Test?
The entire test is done with a simple, non-invasive mouth swab — no needles, no fuss, and no need to leave home.
Your results help you understand how your body may respond to key nutrients, hormones and stress factors that affect hair and scalp health.
Whether you’re just starting out, or you’ve already tried other brands without success, this DNA test offers a fresh, science-led perspective to help you take control of your hair health.
With personalised insights into your unique genetic makeup, it highlights key factors influencing your hair growth, scalp condition, and nutrient needs. From there, you’ll receive tailored guidance from Sara G Allison, The Original Harley Street Trichologist, so you can move forward with clarity and confidence.
No needles, no clinic visits, no video calls — just a simple cheek swab you can do from home.
Perfect for anyone seeking answers without the commitment of a full consultation, this test can be a standalone solution or used alongside future support from Sara if more guidance is needed.
🧬 Understanding the Genes in This Hair DNA Test
- MTHFR: Folate metabolism and methylation. Affects B6, B12, and biotin activation – all essential for hair health.
- SOD2: Antioxidant defence. Weak variants increase oxidative stress and scalp inflammation.
- GC: Vitamin D transport. Poor function raises the risk of low intracellular vitamin D.
- TMPRSS6: Iron regulation. Can impact ferritin levels – crucial for female hair loss.
- DHCR7/NADSYN1: Skin-based vitamin D synthesis. Affects scalp’s ability to use sunlight.
- PNPLA3: Fat metabolism and detox. Poor detox affects hormones and DHT clearance.
- AR (androgen receptor): Androgen sensitivity. Strongly linked to male/female pattern hair loss.
- FUT2: B12 absorption. Variants may impair uptake, even with a good diet.
- SRD5A2: DHT conversion. Higher levels linked to androgenic thinning.
- COL1A1: Collagen production. Influences scalp structure and hair anchoring.
- PTGES2, PTGFR, PTGDR2: Inflammation and follicle miniaturisation. Key in pattern thinning and scalp issues.
- CRABP2: Skin barrier and retinoic acid metabolism. Impacts scalp sensitivity.
- SLC45A2: Pigmentation and UV response. Affects melanin and oxidative stress.
-
ADRB2: Stress response. Overactivity can increase cortisol and shedding risk.

What’s Included in your Genetic Testing Kit:
- Mouth swab DNA test kit (no blood)
- Lab analysis of 18 hair-related genetic markers
- Colour-coded genetic report
- Personalised product and supplement advice from Sara G Allison



