Skip to content
Trusted to do 100,000+ tests and consultations per month.
Trusted to do 100,000+ tests and consultations per month.
Insulin Like Growth Factor 1 (IGF-1) Blood Test

 


INSULIN LIKE GROWTH FACTOR 1 (IGF-1) BLOOD TEST

Trustpilot
£79.00
£79.00 - £79.00
£79.00
£99.00
£99.00 - £99.00
£99.00
Save 20% Save 20%
1 BIOMARKER
6 DAYS
INSTRUCTIONS
FAQ

A blood test to assess the concentration of IGF-1, a hormone pivotal in regulating the pace of cellular growth and replication within the body.

Simple and accurate blood test from a laboratory you can speak to.

TEST RESTRICTIONS

Special handling required.

This test is only available at the following clinics: All London locations, Brighton/Hove, Croydon, Crawley, Guildford and Tunbridge Wells.


STEP 1 - CHOOSE YOUR SAMPLE COLLECTION OPTION
Trustpilot

INSULIN LIKE GROWTH FACTOR 1 (IGF-1) BLOOD TEST OVERVIEW

The IGF-1 blood test measures levels of Insulin-like Growth Factor 1, a hormone that plays a crucial role in childhood growth and continues to support tissue repair and metabolic function throughout adulthood.

IGF-1 is produced mainly in the liver and is regulated by growth hormone (GH). Because IGF-1 levels remain relatively stable throughout the day, unlike growth hormone, which fluctuates, this test offers a reliable way to assess how well the body is producing and responding to growth hormone.

SHARE YOUR HEALTH STORY

Video preview
Video preview
Video preview
Video preview

INSULIN LIKE GROWTH FACTOR 1 (IGF-1) BLOOD TEST

A blood test to measure the level of IGF-1. This is a hormone that is involved in the growth and reproduction rate of cells.

1 BIOMARKER

  1. HORMONES

    - IGF-1

  2. UPGRADE

    Need more biomarkers? Add this marker to our Essential All Systems Blood Test

  1. TURNAROUND TIME

    We are extremely fast, with some results available within hours and others within a working day or less, from the time your sample is in our lab. However, this is not a guarantee and should not be taken as such. This is the guideline turnaround time that can be shorter or longer.


    THIS IS NOT A GUARANTEED TURNAROUND TIME.


    We are extremely proud of our very short turnaround times and a very efficient laboratory processes, you will start receiving results as soon as they are available and have completed clinical validation.


    Whilst we accommodate the shortest of time scales, with some results available within hours, for this particular test the usual turnaround time is: 6 working days.

  1. WILL I HAVE A GENERAL EXPLANATION OF MY RESULTS?

    Yes, our doctors put a huge amount of effort into your online Health Dashboard, which will have explanations of what each biomarker is, the normal reference ranges and what it means if you are outside of them.


    This service is included in the price of all our tests.

  1. CAN I SEE A GP TO DISCUSS MY RESULTS?

    Yes, usually the same or next day.


    One Day Tests has a fantastic clinical team of consultants and GPs. Once you have your results you can book an online video consultation to discuss your results.


    Our clinical team consists of practicing NHS and private GPs, who work closely with our laboratory and can tell you what your blood test results mean for you. Having an integrated laboratory and GP services makes your health journey seamless and extremely efficient.


    This service is not included in the price of the test, it is charged separately, should you wish to book it.

DOCTOR'S COMMENTS

Hi, I am Dr. Adam Staten and here's my view on this test as a GP and Clinical Director at One Day Tests.

DR. ADAM STATEN - GP VIEW AND RED FLAG SYMPTOMS

From a GP’s perspective, the IGF-1 blood test is a useful and often essential part of investigating symptoms related to growth, hormone balance, or pituitary gland function. It gives us insight into how much growth hormone your body is producing on average, which is important because growth hormone itself fluctuates throughout the day and can be difficult to measure accurately on its own. IGF-1 levels, by contrast, remain relatively stable and provide a clearer reflection of overall hormone activity.

Red flag symptoms for the Insulin Like Growth Factor 1 (IGF-1) Blood Test

Your Results and Health Dashboard

The results of your Insulin Like Growth Factor 1 (IGF-1) Blood Test will be emailed to you as a secured PDF file, ready for your GP and will also be uploaded to our Health Dashboard area of the website. It’s a unique and powerful tool, powered by our in-house clinical analysis research, to match your biomarkers across test panels and symptoms, as well as provide clinical commentary on all individual biomarkers you tested for.

The health dashboard will also provide "panel level" commentary - a birds eye view of the biomarkers that were tested. This feature allows you to view your test results and clinical commentary, and compare them to previous results, giving you a clear understanding of how your health is progressing.

By using the Health Dashboard, you can identify changes in your biomarkers and make necessary adjustments to your lifestyle. This added value is immense, as it empowers you to monitor your health and make informed decisions about your well-being.

It's free and is available with all of our tests.

SAVE ON CONTINUOUS MONITORING WITH OUR SUBSCRIPTION PLAN

The best way to look after your health is to do so regularly. This is easy to do with our continual monitoring plans which give you a discount on future blood tests. You choose the frequency and we'll do the rest.

When you purchase a subscription, we will deliver your home test kits or allow you to book appointments in line with your chosen frequency. You will be able to track your biomarkers over time in our powerful Health Dashboard, where results will be automatically updated for you. There is a minimum of 3 tests with any subscription, after which you can pause/restart/cancel at any time.

SPECIAL INSTRUCTIONS

Hi, I am Stefania Brown, I am the Laboratory Manager at One Day Tests and here are the lab's special requests for the Insulin Like Growth Factor 1 (IGF-1) Blood Test.

SPECIAL INSTRUCTIONS

There are no special instructions for this test.

Clinic appointment - how to prepare for the Insulin Like Growth Factor 1 (IGF-1) Blood Test

If you are coming into one of our clinics for the test, this is what you need to do before you arrive:

  • Read the instructions in the SPECIAL INSTRUCTIONS section
  • Drink plenty of water about an hour before the appointment.
  • Avoid coffee/tea/energy drinks. Water is good!
  • That’s it! We’ll do the rest.

We look forward to receiving your sample in our lab!

WHY CHOOSE US?

Hello! My name is Dr. Vinesh Mistry, I am part of the GP team here at One Day Tests and here is why you should trust us to test your blood.

QUICK AND ACCURATE RESULTS DIRECT FROM A LABORATORY.

We run our own regulated laboratories and our own accredited clinics. We manufacture our own approved home sample collection kits. Your results are looked after by our fantastic clinical governance team and our super-talented biomedical science team.

When you book your test with us - you book directly with the lab. This means accuracy and responsible duty of care, direct access to the provider and extremely fast turnaround times.

Finally, our customer services rock! You can ask the lab a question any time or you can speak to a real human. You can email us on hello@onedaytests.com or give us a call on 0127 309 2844.

FREQUENTLY ASKED QUESTIONS

Hi, I am Lana Nela, Lead Nurse, and here is what we are frequently asked about this test.

FREQUENTLY ASKED QUESTIONS

Here are some of the most frequently asked questions about the Insulin Like Growth Factor 1 (IGF-1) Blood Test.

Can IGF-1 levels indicate a growth hormone problem even if other tests are normal?

Yes, IGF-1 levels provide a long-term view of growth hormone activity and can reveal imbalances that might not be picked up by a single growth hormone test.

Since GH levels fluctuate throughout the day, IGF-1 offers a more consistent and reliable indicator.

Do IGF-1 levels change with age?

Absolutely. IGF-1 levels are highest during puberty when growth hormone activity peaks and gradually decline with age. That’s why test results are always interpreted using age-specific reference ranges to determine what’s considered normal for you.

Can lifestyle or health conditions affect my IGF-1 levels?

Yes, several factors can influence IGF-1, including nutritional status, chronic illness, liver function, and even certain medications. Undernutrition or conditions affecting the liver may lower IGF-1 levels, while growth hormone therapy or tumours of the pituitary gland may raise them.

WHY HAVE THE TEST?

Hi, I am Nader Eldarf, I am a Biomedical Scientist in our laboratory and here is why it's important to take this test.

  1. WHY HAVE THE INSULIN LIKE GROWTH FACTOR 1 (IGF-1) BLOOD TEST?

    The IGF-1 blood test is important because it provides a reliable measure of how much growth hormone (GH) activity is taking place in the body over time.

    Unlike GH, which is secreted in pulses and can vary widely throughout the day, Insulin-like Growth Factor 1 (IGF-1) levels remain relatively stable, offering a clearer and more consistent picture of overall hormone function.

    This makes it a valuable tool in diagnosing and monitoring conditions related to growth and metabolism.

IS THIS TEST RIGHT FOR YOU?

Hi, I am Sandeep Patel, I am the Laboratory Director at One Day Tests. Here are the symptoms that you may wish to address with this test.

  1. IS THE INSULIN LIKE GROWTH FACTOR 1 (IGF-1) BLOOD TEST RIGHT FOR YOU?

    For children, this test is often recommended if there are concerns about slow growth, short stature, or delayed development. In adults, it may be useful if you're experiencing unexplained fatigue, reduced muscle mass, low bone density, or symptoms of acromegaly, such as enlarged hands, feet, or facial features.



    This test can also be helpful if you're being monitored for pituitary gland function, or if you’re on or being considered for growth hormone therapy. Because IGF-1 reflects average growth hormone activity over time, it’s more reliable than testing growth hormone directly, which fluctuates throughout the day.

  1. SYMPTOMS AND TAGS

    Growth

WHY ARE BLOOD TESTS IMPORTANT?

Health monitoring is very important, you are in charge of your health - look after it.