Mobile Lab Testing Across Texas

Skip the Waiting Room. We Bring the Lab to You.

15-Minute Visits. 48-Hour Results.

At-Home Lab Testing in Houston,
Dallas-Fort Worth, San Antonio, & Austin, TX

In-Home Service Results in 48 Hours

400+ Vehicles

Clinical-Grade Labs

Results in 48 Hours

They came straight to my office during my lunch break. It was painless. The tech was in and out in 15 minutes.

Chris L.

Check Key Health Markers
Without the Lab Visit

Order Your Labs

Choose the panel that fits your goals. No referral, insurance, or separate lab appointment needed.

We Come to
Your Home or Office

A trained mobile phlebotomist visits your selected location for your blood draw.

Get Results in 48 Hours

Most results are delivered securely within 48 hours after your visit.

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Lab Profiles That Fit Your Goals

Explore focused and comprehensive testing options designed to help you check the markers that matter most.

Essential Health & Wellness Profile

In-Home Service Results in 48 Hours

A simple starting point for checking core health markers, including heart health, nutrients, inflammation, thyroid, liver, kidney, and bone health.

What We Test For

  • CBC
  • CMP
  • Lipid Panel
  • hs-CRP
  • Creatine Kinase (CK)
  • BUN (Blood Urea Nitrogen)
  • Vitamin D (25-OH)
  • Vitamin B12
  • Folate
  • TSH
  • HbA1c
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Complete Health & Wellness Profile

In-Home Service Results in 48 Hours

Our most comprehensive panel for a deeper look at your health, with expanded markers for hormones, metabolism, thyroid, fatigue, brain health, and more.

What We Test For

  • CBC
  • CMP
  • Lipid Panel
  • HbA1c
  • Insulin
  • Testosterone (Total + Free)
  • Estradiol
  • Progesterone
  • LH
  • FSH
  • SHBG (Sex Hormone-Binding Globulin)
  • DHEA-S
  • TSH
  • Total T3
  • Free T4
  • hs-CRP
  • ESR
  • Ferritin
  • Cortisol (AM)
  • ApoB
  • Lipoprotein(a)
  • Homocysteine
  • GGT
  • Iron
  • TIBC
  • Phosphorus
  • ANA
  • Rheumatoid Factor
  • Lead
  • Mercury
  • Arsenic
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Weight Loss & GLP-1 Monitoring Profile

In-Home Service Results in 48 Hours

Monitor markers tied to metabolism, blood sugar, thyroid function, inflammation, and overall wellness as you work toward your weight goals.

What We Test For

  • HbA1c
  • Fasting Insulin
  • C-Peptide
  • Lipid Panel
  • ApoB
  • TSH
  • Total T3
  • Free T4
  • Vitamin D (25-OH)
  • Intact PTH
  • ANA
  • CMP
  • AST
  • hs-CRP
  • DHEA-S
  • Cortisol (AM)
  • Creatine Kinase (CK)
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Women’s Hormone & Vitality Profile

In-Home Service Results in 48 Hours

Explore markers tied to estrogen, progesterone, fertility, thyroid function, stress response, energy, metabolism, and age-related hormone changes.

What We Test For

  • Testosterone (Total + Free)
  • Estradiol
  • Progesterone
  • LH
  • FSH
  • SHBG
  • DHEA-S
  • Cortisol (AM)
  • TSH
  • Free T3
  • Free T4
  • Ferritin
  • Vitamin B12
  • Vitamin D (25-OH)
  • Iron
  • TIBC
  • Insulin
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Men’s Hormone & Vitality Profile

In-Home Service Results in 48 Hours

Explore markers tied to testosterone, fertility, thyroid function, stress response, energy, sexual vitality, and overall hormone balance.

What We Test For

  • Testosterone (Total + Free)
  • Estradiol
  • Progesterone
  • LH
  • FSH
  • SHBG
  • DHEA-S
  • Cortisol (AM)
  • TSH
  • Free T3
  • Free T4
  • Ferritin
  • Vitamin B12
  • Vitamin D (25-OH)
  • Iron
  • TIBC
  • CBC
  • CMP
  • Lipid Panel
  • HbA1c
  • PSA
  • Prolactin
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Athletic Performance & Peptides Profile

In-Home Service Results in 48 Hours

Track markers tied to training performance, muscle recovery, inflammation, hormone balance, nutrient levels, and peptide-related progress.

What We Test For

  • hs-CRP
  • ESR
  • Ferritin
  • CBC
  • CMP
  • Vitamin D (25-OH)
  • Vitamin B12
  • Magnesium
  • Zinc
  • Creatine Kinase (CK)
  • Cortisol (AM)
  • Testosterone (Total + Free)
  • Iron
  • TIBC
  • DHEA-S
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Cognitive Health & Longevity Profile

In-Home Service Results in 48 Hours

Explore markers tied to memory, focus, inflammation, blood sugar, heart health, nutrient levels, aging, and medication compatibility.

What We Test For

  • Vitamin B12
  • Homocysteine
  • Fasting Glucose
  • HbA1c
  • Lipid Panel
  • ApoB
  • hs-CRP
  • DHEA-S
  • Lead
  • Mercury
  • Arsenic
  • Omega-3 Index
  • Vitamin D (25-OH)
  • Folate
  • TSH
  • Free T4
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Women’s Complete STI Profile

In-Home Service Results in 48 Hours

Get discreet sexual health testing for women, including common STIs and cervical HPV screening, with secure results delivered quickly and privately.

What We Test For

  • HIV
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • RPR, Syphilis
  • Chlamydia NAAT
  • Gonorrhea NAAT
  • Trichomonas NAAT
  • HSV-1/2 IgG
  • Cervical HPV
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Men’s Complete STI Profile

In-Home Service Results in 48 Hours

Get discreet sexual health testing for men, covering common STIs with secure results delivered quickly and privately.

What We Test For

  • HIV
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • RPR (Syphilis)
  • Chlamydia NAAT
  • Gonorrhea NAAT
  • Trichomonas NAAT
  • HSV-1/2 IgG
View Full Profile

Search by Concern

Browse by Test

Help Me Choose

Stop Wondering.
Start Understanding.

If you feel like something has changed, you shouldn’t have to keep guessing. Whether it’s your energy, hormones, metabolism, recovery, or overall wellness, the right lab panel can help you take a closer look and decide what to do next.

Which Test Is Right for Me?

Backed by the Largest Mobile Diagnostics Provider in Texas

Vitalis Direct is powered by the Principle Health Systems network of Houston mobile at-home lab testing phlebotomists, bringing 10 years of mobile experience into every at-home and office visit.

  • 10M+ Mobile Diagnostic Tests Annually
  • 500+ Staff Across Clinical, Technical, & Mobile Roles
  • 1M+ Texans Served in 2025
  • 10+ Years of Operational Excellence
About Us

At-Home Lab Testing in Houston,
Dallas-Fort Worth, San Antonio, & Austin, TX

Lab Testing That Fits Your Schedule

See how others are getting the answers they need without waiting rooms, extra appointments, or wasted time.

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Principle Health Systems is a very professional establishment that truly believes in customer service within and without of the organization. They are concerned about the needs of their patrons and believe in rectifying any matter with a positive lasting solution. They have amazing staff and awesome management which explains why they appear to be so successful.

Kimberly Ferrell

Fast and Friendly Service! Thank you Principle Health for keeping everyone safe during the testing process with your thorough cleanliness standards.

Priscilla Diosdado

Amazing company. The staff are complete pros and take care of their patients. Wouldn’t hesitate to recommend!

David DeCasper

Kristy was very knowledgeable in her line of work!!! She was courteous to me!!! You could tell that she knew what she was doing!!! I also enjoyed our conversation that we had.

Karen Fisette

Order & Schedule Your At-Home Lab Visit Today

Choose your panel, pick the day that works best for you, and we’ll handle the rest!

  • Clinical Grade Bloodwork
  • At-Home or Office Visits
  • Secure Results in 48 Hours
  • No Insurance Required
  • Full-Time Clinical Staff
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