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Your biology has the answers.
Your biology
has the answers.
At-home blood testing across 38 key markers. One complete picture. Now just £79.
At-home blood testing
across 38 key markers.
One complete picture.
Now just £79.
Rated “Excellent” based on 11,288 reviews
HOW IT WORKS
From testing to action
1
Painless at-home testing
Under 30 minutes — no needles, no clinics. One small device on your arm, and your sample reaches our lab the next day.
2
Vitamin D
28nmol/L
LowHighOptimalLow
Free Testosterone
0.26nmol/L
OptimalHighOptimalLow
Results in 72 hours
Delivered straight into your personal dashboard. Every biomarker explained in plain language — what it means, why it matters, what to do next.
3
Impact 9.4
Magnesium Bisglycinate
200mg daily before bed
Your Magnesium is suboptimal and your Oura data shows inconsistent deep sleep. Bisglycinate supports both recovery and sleep quality.
Your ideal dosageFemale, 35–40
100mg200mg400mg
Magnesium (suboptimal)Deep sleep (low)HRV (below avg)
Tailored insights
Receive personalised recommendations that are scored against your unique biology. Know exactly what will move the needle for your wellbeing, not someone else’s.
4
1:1 expert advice
Unrushed time with our expert nutritionists to go through your results, answer your questions, and build a tailored wellbeing plan together. Complimentary for full members, discounted for Core customers.
What we test for
Every aspect of your wellbeing, covered
Active Vitamin B12
Alanine Aminotransferase
Albumin
Alkaline Phosphatase
ApoA1
ApoB
ApoB:A1 Ratio
Bilirubin
Blood Urea Nitrogen (BUN)
C-Reactive Protein
Copper
Creatine Kinase
Creatinine
eGFR (Estimated Glomerular Filtration Rate)
Ferritin
Folate
Follicle Stimulating Hormone (FSH)
Free Testosterone
Free Thyroxine (Free T4)
Free Triiodothyronine (Free T3)
Active Vitamin B12
Alanine Aminotransferase
Albumin
Alkaline Phosphatase
ApoA1
ApoB
ApoB:A1 Ratio
Bilirubin
Blood Urea Nitrogen (BUN)
C-Reactive Protein
Copper
Creatine Kinase
Creatinine
eGFR (Estimated Glomerular Filtration Rate)
Ferritin
Folate
Follicle Stimulating Hormone (FSH)
Free Testosterone
Free Thyroxine (Free T4)
Free Triiodothyronine (Free T3)
GGT
HbA1c
HDL Cholesterol
Iron
LDL Cholesterol
Luteinising Hormone (LH)
Magnesium
Non-HDL Cholesterol
Oestradiol
Progesterone
Sex Hormone Binding Globulin (SHBG)
TC:HDL Ratio
Thyroxine (T4)
Total Cholesterol
Total Protein
Total Testosterone
Triglycerides
Triiodothyronine (T3)
TSH (Thyroid-Stimulating Hormone)
Uric Acid
Vitamin D
Free Androgen Index
Zinc
GGT
HbA1c
HDL Cholesterol
Iron
LDL Cholesterol
Luteinising Hormone (LH)
Magnesium
Non-HDL Cholesterol
Oestradiol
Progesterone
Sex Hormone Binding Globulin (SHBG)
TC:HDL Ratio
Thyroxine (T4)
Total Cholesterol
Total Protein
Total Testosterone
Triglycerides
Triiodothyronine (T3)
TSH (Thyroid-Stimulating Hormone)
Uric Acid
Vitamin D
Free Androgen Index
Zinc
HEALF ZONE TESTING
Choose your test
One-off or ongoing — every option includes access to our in-house practitioners.
One-off test
Most PopularCore
38 biomarkers. The full picture, whenever you need it — no commitment.
££149
One-time · no subscription
At-home blood test using the Tasso device
38-biomarker comprehensive panel
Results within 72 hours
Discounted 1:1 nutritionist consultations
All-in-one health dashboard with personalised recommendations
Annual membership
Membership
Two Core tests a year, consultations after each, plus full membership perks.
12 month contract · 2 tests included
2 × Core tests per year
Complimentary 1:1 consultation after each test
All-in-one health dashboard with personalised recommendations
Next-day delivery on all orders
Exclusive event access
Select your plan
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Who is this kit for?*
