Testosterone – Key Markers LIS Code: TC100
“Discover how our Testosterone Key Markers blood test helps assess hormone balance, fertility and wellness. Book with Vitalync Diagnosis for a comprehensive profile and actionable insights.”
What's included in this profile
- An enzyme found mainly in the liver
- Raised levels can indicate liver inflammation or damage
- Commonly checked alongside AST to assess liver health
- An enzyme found in the liver, heart and muscles
- Raised levels can suggest liver or muscle damage
- Used alongside ALT to help pinpoint the cause of liver stress
- The main form of oestrogen in women of reproductive age
- Used to assess ovarian function, fertility and menopause status
- Also present at lower levels in men
- A pituitary hormone that regulates egg/sperm production
- Used to assess fertility and menopause status in women
- Also checked in men to help assess sperm production
- The small, biologically active portion of total testosterone
- Not bound to proteins, so freely available to tissues
- Gives a more precise picture than total testosterone alone
- The active, unbound form of the main thyroid hormone T4
- Checked alongside TSH to assess thyroid function
- Helps confirm an over or underactive thyroid
- Measures red cells, white cells and platelets
- A foundational test for overall health, anaemia and infection
- The 'Differential' breaks white cells down by specific type
- The main sugar circulating in the blood, used for energy
- Raised fasting levels can indicate prediabetes or diabetes
- A cornerstone test for metabolic health
- Reflects average blood sugar levels over the past 23 months
- The main test used to diagnose and monitor diabetes
- Not affected by what you ate that day, unlike glucose
- A pituitary hormone that triggers ovulation in women
- Also plays a role in testosterone production in men
- Checked alongside FSH for fertility and hormonal assessment
- A pituitary hormone best known for its role in breastfeeding
- Raised levels outside pregnancy can disrupt periods and fertility
- Checked when investigating irregular cycles or low libido
- A protein that binds testosterone and oestrogen in the blood
- Affects how much hormone is 'free' and active
- Needed to accurately interpret total testosterone results
- The primary male sex hormone, also present in women
- Affects energy, muscle mass, libido and mood
- Low levels in men can cause fatigue and reduced sex drive
- The pituitary hormone that signals the thyroid to produce T3/T4
- The primary firstline test for thyroid function
- Raised or low levels suggest an underactive or overactive thyroid
- The overall amount of cholesterol in the blood
- A key marker for cardiovascular risk
- Interpreted alongside HDL, LDL and triglycerides
- Essential for bone health, calcium absorption and immunity
- Deficiency is common, especially in winter months
- One of the most frequently tested vitamins in the UK
About this profile
Sample Requirements:

Turnaround Time:
5 d
Special Instructions:
Fasting required (8-12 hours). The test should ideally be done between 7:00 AM – 10:00 AM to reflect natural testosterone levels, which peak in the morning.
TC100 Blood Test Panel
Designed by The Testosterone Consultant for Peak Athletic & Hormonal Performance
The TC100 Panel is a comprehensive, high-performance blood test tailored for athletes, bodybuilders, and anyone dedicated to sports performance, hormonal balance, and recovery. Whether you’re training for strength, endurance, or physique, this panel provides critical insights into your metabolic, cardiovascular, hormonal, and recovery health — so you can perform at your absolute best.
What’s Included?
✅ Complete Blood Analysis
Full Blood Count (FBC): Evaluates oxygen delivery, immune function, and overall recovery status.
⚡ Metabolic & Energy Regulation
Glucose & HbA1c: Monitors blood sugar control and long-term metabolic health.
❤️ Cardiovascular Health
Cholesterol Panel: Assesses heart health and endurance capacity.
🧪 Liver Function
AST & ALT: Detect liver stress from intense training, high-protein diets, or supplement use.
🔥 Thyroid Function
TSH & Free T4: Key for metabolism, fat-burning, and energy balance.
💪 Anabolic & Androgenic Hormones
Total & Free Testosterone, SHBG: Crucial for muscle growth, strength, performance, and recovery.
🧬 Reproductive Hormones
LH & FSH: Indicators of natural testosterone production and reproductive health.
⚖️ Estrogen Balance
Estradiol (E2): Maintains hormonal equilibrium and regulates testosterone conversion.
🔄 Prolactin (PRL)
Supports overall endocrine balance and recovery efficiency.
🌞 Vitamin D (25-OH): Supports muscle function, bone health, and immune resilience.
Who Is This Test For?
Athletes & Bodybuilders seeking peak physical and hormonal optimization
High-intensity trainers concerned with recovery, energy levels, and performance plateau
Individuals focused on testosterone balance and endocrine health for strength, stamina, and wellbeing
Why This Panel Matters
The TC100 Panel goes beyond basic health checks. It allows you to:
Optimise testosterone and anabolic hormone levels
Monitor recovery and fatigue markers to avoid overtraining
Identify nutritional deficiencies or metabolic imbalances
Track liver and thyroid health affected by intense training or supplementation
Gain science-backed insights to personalize your fitness, training, and nutrition plans
Maximize your performance, recovery, and results with the TC100 Blood Test Panel — the ultimate toolkit for high achievers in fitness and sports.