ONSET

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SKIP THE LAB

Skip the Needle.

Monthly bloodwork that comes to you. 17 biomarkers. 5 minutes. No excuses left.

How It Works

Three simple steps to understanding your health

01

Order Your Kit

Your Tasso kit arrives monthly. No appointments needed.

02

Collect at Home

5 minutes. No needles. Just place on your arm and relax.

03

Get Insights

Results in 3 days. Trends, actions, and your monthly win.

The Panels

Comprehensive biomarker tracking designed for optimization

Monthly Core Panel

17 Biomarkers

17

lipids

LDL-CHDL-CTriglyceridesNon-HDL-C

metabolic

Fasting GlucoseHbA1c

inflammation

hs-CRP

liver

ALTASTGGTAlbuminTotal Protein

kidney

CreatinineeGFR

thyroid

TSHFree T4

hormones

Total TFree TSHBG

Quarterly Expanded

Months 3, 6, 9, 12

+7

Everything in the Monthly Core Panel, plus:

vitamins

Vitamin DB12Folate

minerals

FerritinMagnesiumCalcium

growth

IGF-1

Lab-Grade Results.
Zero Lab Visits.

Tasso+ Technology

FDA Class II cleared. 300-600µL capillary blood collection. Lower hemolysis than finger pricks for superior sample quality.

Partner Labs

ARUP Laboratories and CLIA-certified network. The same standards and equipment used for traditional venous blood testing.

Validated Panels

Every biomarker clinically validated for capillary blood accuracy. Results you can trust, action you can take.

FDAClass II Cleared
CLIACertified Labs
HIPAACompliant

Results That
Drive Action

Every result comes with trend analysis and concrete actions. No jargon, no confusion—just clear next steps.

  • Traffic-light scoring for instant clarity
  • 12-month trend visualization
  • 3 actionable insights per result
  • Protocol recommendations tailored to you

October Results

Sample User

On Track

Key Insights

  • LDL-C down 12% since starting Zone 2 cardio
  • HbA1c stable at 5.2% — metabolic health strong
  • Testosterone trending up after sleep protocol

Actions This Month

  1. 1Maintain cardio volume (150 min/week)
  2. 2Add 200mg Magnesium Glycinate before bed
  3. 3Retest Vitamin D next quarter

No Needles.
No Lab Visits.
Ever.

Unless something concerning shows up. Then we'll recommend a confirmatory draw—and help you book it.

Simple Pricing

Everything you need. Cancel anytime.

Most Popular

Monthly Plan

$149/month
  • Monthly Core Panel (17 biomarkers)
  • Quarterly Expanded Panel included
  • Trend tracking & insights dashboard
  • Protocol recommendations
  • Free shipping both ways
  • Results in 2-3 days
Start Your First Month

No commitment. Cancel anytime.

Questions?

Everything you need to know about Onset

The Tasso+ uses gentle vacuum technology to draw a small blood sample from your upper arm. It's FDA-cleared, painless, and takes about 5 minutes. No needles, no finger pricks.

Most users report feeling only a slight sensation, far less than a traditional blood draw or even a finger prick. The device uses micro-channels smaller than a mosquito bite.

Tasso+ samples have been clinically validated against venous blood draws. Our partner labs (including ARUP Laboratories) use the same equipment and standards as traditional lab testing.

If any biomarker crosses a threshold or shows a concerning trend, we'll clearly flag it and recommend a confirmatory venous draw. We'll help you book it—but we never force it.

Absolutely. In fact, monthly monitoring is ideal for TRT patients. Track your testosterone, estradiol proxy markers, and liver function to optimize your protocol safely.

Typically 2-3 business days from when our lab receives your sample. You'll get a notification the moment your results are ready.

The Monthly Core Panel includes 17 biomarkers across lipids, glucose, inflammation, liver, kidney, thyroid, and hormones. Quarterly adds vitamins, minerals, and growth markers.

Yes. No contracts, no commitments. Cancel or pause your subscription anytime from your dashboard.

Still have questions? Reach out to our team

Your Blood Tells a Story.
Start Reading It.

Join thousands of men tracking their health the smarter way.

HIPAA Compliant
256-bit Encryption
Cancel Anytime