1,25-dihydroxyvitamin D (Calcitriol)
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
Peptide Baseline Profile
299.00
This baseline panel is designed to assess metabolic, hormonal and inflammatory health before starting longevity or repair peptides. It provides critical safety and optimisation markers, including IGF-1 and hormone balance.
Turnaround time
1 day
Biomarkers count
55
Same-Day Appointments
UKAS Accredited Labs
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Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
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Details about Peptide Baseline Profile
What Is a Peptide Baseline Profile?
A peptide baseline profile is a comprehensive blood test taken before starting any peptide protocol. It establishes your current biological state so you can measure real changes once peptides are introduced.
Whether you're planning to use:
- BPC-157 or TB-500 for recovery
- Glow peptides or GHK-Cu for skin and anti-ageing
- Retatrutide (Reta) or Tirzepatide (GLP-1) for weight loss
This test gives you a clear starting point.
Baseline testing is not optional — it is what separates random use from structured optimisation.
Clinical guidance consistently shows that baseline blood work provides a reference point to compare results and guide safe dosing.
Why You Must Test Before Starting Peptides
Here’s the blunt reality:
If you don’t know your baseline, you don’t know:
- What’s already out of range
- Whether peptides are helping or harming
- If side effects are from peptides or pre-existing issues
Baseline testing allows you to:
- Detect hormone imbalances before starting
- Identify metabolic risks (critical for GLP-1 peptides)
- Avoid worsening inflammation or organ stress
- Build a data-driven peptide protocol
It turns peptides from trial-and-error into precision optimisation.
Full Range of Peptides This Supports
This profile is designed to cover all peptide categories, including your full menu:
Recovery & Healing Peptides
- BPC-157 – gut, joints, inflammation
- TB-500 – muscle repair, flexibility
- Wolverine (WOLV) – accelerated recovery & tissue repair
Skin & Anti-Ageing Peptides
- Glow peptides – collagen, hydration, elasticity
- GHK-Cu (Copper Peptide) – skin regeneration, hair, healing
Weight Loss & GLP-1 Peptides
- Retatrutide (Reta 2.0) – next-gen metabolic peptide
- Tirzepatide (20mg / 40mg / 60mg) – GLP-1/GIP dual agonist
These require baseline testing more than anything else, as they directly impact:
- Blood sugar
- Insulin production
- Appetite regulation
- Fat metabolism
Energy, Brain & Longevity Peptides
- MOTC – mitochondrial energy
- CAG – cognition and focus
- NAD+ – DNA repair, longevity, cellular energy
What This Baseline Test Measures
This profile captures your starting biological state across all systems peptides affect.
1. Metabolic & GLP-1 Baseline
Essential before Tirzepatide or Retatrutide:
- Glucose
- HbA1c
- Insulin
Markers like C-peptide can also indicate how much insulin your body naturally produces, helping assess metabolic health and treatment direction.
2. Hormonal Baseline
Before introducing peptides that influence endocrine pathways:
- Testosterone (Total & Free)
- SHBG
- LH / FSH
- Cortisol
This ensures you’re not starting with hidden imbalances.
3. Inflammation & Recovery Status
Critical for BPC-157, TB-500, Wolverine:
- CRP / hs-CRP
Baseline inflammation determines how effective recovery peptides will be.
4. Liver & Kidney Function
Before introducing any peptide:
- ALT, AST, GGT
- Creatinine, Urea, eGFR
Ensures your body can safely process compounds.
5. Nutritional & Cellular Health
Supports Glow peptides, NAD+, MOTC:
- Vitamin D
- B12 & Folate
- Magnesium
- Zinc
Without optimisation here, peptide results are limited.
Who This Test Is For
This is essential if you are:
- About to start GLP-1 weight loss peptides (Tirzepatide / Retatrutide)
- Planning a BPC-157 or TB-500 recovery protocol
- Using Glow peptides or GHK-Cu for aesthetics
- Running stacked peptide cycles
- Serious about biohacking, longevity, or performance
If you're not testing first — you're guessing.
How It Works at London Blood Tests
- Book your peptide baseline profile online
- Choose clinic or home visit
- Blood collected by trained phlebotomist
- Samples analysed by UK-accredited labs
- Results delivered securely
Simple, fast, clinical.
Why Choose London Blood Tests
- Built specifically for peptide users (not generic health checks)
- Covers GLP-1, recovery, anti-ageing & longevity protocols
- Baseline + monitoring strategy available
- London-wide clinic & home phlebotomy
- Fast turnaround & reliable lab partners
How It Works
Simple steps to get your results
1
Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
2
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
3
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
Frequently Asked Questions
Yes, especially GH-related or repair peptides.
Absolutely. It is critical for safety and effectiveness.
Yes, if glucose control is poor beforehand.
Yes, hormone markers are interpreted sex-specifically.
No, it complements and expands standard testing.
Yes, fasting is required for glucose and insulin accuracy.
Typically every 3–6 months during optimisation.
Yes, especially for GH-axis and metabolic peptides.
Yes, it’s a high-quality longevity baseline.
Yes, it provides an ideal reference point.
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