There’s no reason to accept low testosterone as part of ageing.
In sexually active years, most men are concerned about their testosterone levels. Besides impacting sexual function, testosterone is closely linked to muscle strength, cholesterol and glucose control as well as heart health.
As men approach andropause, testosterone levels are gradually reduced by around 1% every year. This may also increase the risk of osteoporosis, in addition to the other long-term effects highlighted above.
The good news: There are several testosterone replacement therapy options that have been shown to increase energy levels, muscle mass, bone density, and sex drive, as well as to reduce other symptoms in men who suffer from low testosterone for other reasons.
Did you know?
Testosterone is useless to you when it is attached to proteins in your body. Testosterone that is free floating and unattached to proteins is what is useful to you. Ask for a properly calculated free testosterone level at your next blood test.
Our Gold Standard for Testosterone Replacement Therapy (TRT)
We offer a Gold Standard approach to Testosterone Replacement Therapy (TRT) that we believe provides the most effective results for restoring healthy, stable androgen levels. Our approach combines daily subcutaneous Testosterone Cypionate injections with Human Chorionic Gonadotropin (hCG). This method not only optimizes testosterone levels but also mimics the natural diurnal variation in testosterone, providing the most physiological and effective treatment for testosterone deficiency.
We offer three treatment options tailored to each patient’s needs and preferences:
Option 1
Testosterone Cypionate + hCG or Testosterone Cypionate Alone
Testosterone Cypionate is a once weekly testosterone injection , providing stable and consistent hormone levels. These injection can be done yourself at home.When combined with hCG, this option helps maintain testicular function, preventing atrophy and supporting fertility.
Option 2
Testosterone Undecanoate + hCG or Testosterone Undecanoate Alone
Testosterone Undecanoate is a 3 monthly injectable form of testosterone with a longer duration of action, reducing the frequency of injections. Injections need to be performed by your doctor in clinic. Paired with hCG, it provides enhanced testicular protection and fertility support.
Option 3
Testosterone Gel + hCG or Testosterone Gel Alone
Testosterone Gel offers a convenient, non-injection option. It is absorbed through the skin, providing stable testosterone levels. Like the injectables, it can be combined with hCG to prevent the suppression of natural hormone production.
Why We Advocate the Use of hCG Alongside Testosterone Replacement
Testosterone Replacement Monotherapy can suppress the body’s natural production of Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH) from the pituitary gland. This suppression can lead to:
- Infertility
- Testicular Atrophy (shrinkage)
- Reduced Libido
By adding hCG to TRT, we mimic the body’s natural hormonal feedback system, helping maintain testicular size, function, and fertility. Some individuals may be concerned about the aesthetic appearance of their testicles, particularly the potential shrinkage that can occur with long-term testosterone replacement alone. hCG stimulates the testes to produce their own testosterone and supports spermatogenesis (sperm production), thereby reducing the negative side effects associated with testosterone monotherapy.
Supportive Medications in Conjunction with TRT
To optimize TRT results and address potential side effects, we also prescribe Clomiphene and Anastrozole in certain cases.
Clomiphene (Clomid)
- Clomiphene is often used to help restore natural testosterone production and improve fertility. It works by stimulating the pituitary gland to produce more LH and FSH, which can help maintain sperm production and testicular size while on TRT.
Anastrozole (Arimidex)
- Anastrozole is an aromatase inhibitor that prevents the conversion of excess testosterone into estrogen. This can help prevent side effects such as gynecomastia (breast tissue development) and water retention, ensuring that your testosterone therapy remains as effective as possible.
How fast do Testosterone Replacement Injections Start Working?





How fast do Testosterone Replacement
Injections Start Working?
FAQ
How fast can we see results from testosterone replacement injections?
It depends on why you are taking the injections. You would expect to see improved sexual function from 3-4 weeks, improved emotional health between 4-5 weeks, and improved strength, body shape and health from 6-12months.
How can I get tested for my testosterone levels?
It’s a simple blood test best done fasted and before 10am in the morning. Testosterone level start to dip after the early morning.
What are some of the side effects of Testosterone Replacement?
Side effects of testosterone replacement therapy can include acne, prostate growth, sleep problems, a stop to sperm production (be sure to tell your doctor if you are planning to preserve your fertility), increased blood cell production, and increased estrogen levels (which can be addressed by your doctor).
Our Doctors

Dr Samuel
MB BCh, BaO (Ireland),
MRCS (England)

Dr Jess
BSc (S’pore), MBBS (Aus)
FECSM (Fellow of the European Committee Sexual Medicine)
Your Health, Your Confidence.
Don’t let health concerns hold you back. Early intervention can significantly improve quality of life.
Hear Directly from
Our Clients
EXCELLENT
Based on 44 reviews
Posted on Google![]()
rana SohelTrustindex verifies that the original source of the review is Google.
Dr. Sam is extremely professional in offering guidance and support.he is very friendly and humble. When i was consultation with Dr.Sam at the moment he always attentive to my concerns. i wanna say thanks deeply from my heart 💓 dr.Sam Insync medical & their staff. Overall I'm fully satisfied and strongly recommend dr.samuel Lee . Once again thank you very much sir Dr Samuel Lee 🙏👍💪Posted on Google![]()
Qi Long hauTrustindex verifies that the original source of the review is Google.
Dr. Sam is extremely professional in offering guidance and support. My sessions at Insync were very comfortable, and Dr. Sam was always approachable and attentive to my concerns. He helped me with my circumcision and is a calm and friendly doctor. He makes sure to thoroughly understand the condition before prescribing any treatments or medications.Posted on Google![]()
emma chiauTrustindex verifies that the original source of the review is Google.
Dr Jess is an amazing women health specialist. She provides so much knowledge and heart!Posted on Google![]()
aglio olioTrustindex verifies that the original source of the review is Google.
Dr Jess and team is one of the best medical practitioners that I have ever visited. She is knowledgeable, patient and extremely reassuring. The level of dedication and attention she extends to her patients is unparalleled. Cost is also extremely reasonable. Thank you dr Jess for all that you do.Posted on Google![]()
Shirlyn LooTrustindex verifies that the original source of the review is Google.
Dr. Jess is highly professional in offering guidance and support. My sessions at Insync were very comfortable, and Dr. Jess was always approachable, attentive to my concerns, and provided the best strategies for the challenges my partner and I were facing. Also, the other staffs were extremely helpful during my time there too! Overall, my experience with Insync was excellent! :)Posted on Google![]()
Cedric LimTrustindex verifies that the original source of the review is Google.
Came upon this clinic via Google. Doctor Jess is a calm and friendly doctor. She will understand the condition first before making giving any prescription or treatment. She let's her patient feels at ease and explain the condition after her analysis. She gave the right treatment and medication and thankfully the condition I had is gone. Lastly the staff are so polite and friendly, the clinic atmosphere is also so peaceful and clean. Thank you Doctor Jess and her wonderful team.Posted on Google![]()
Rosie YeoTrustindex verifies that the original source of the review is Google.
I was impressed with the experience I had with Dr Jess on my first consultation. She is so attentive, cautious and caring. Needless to say, I would highly recommend her as a doctor for women’s wellbeing support. It is also worthy to mention that her team of frontliners provides one of the best service I have came across , especially Ms Nur.Posted on Google![]()
KTrustindex verifies that the original source of the review is Google.
Dr Jess is an outstanding and caring GP. Highly recommend her to anyone looking for good care.Posted on Google![]()
CalTrustindex verifies that the original source of the review is Google.
I had some medical issues I needed help with whilst on my travels. Reception was very helpful and kind throughout the process. Dr. Jess was easy to talk to and understanding about my situation. Great experience, thank you guys!Posted on Google![]()
Sue J.Trustindex verifies that the original source of the review is Google.
I cannot express how incredibly lucky and grateful I am to hv met Dr Jess. I experienced some personal women health matter and was in a state of confusion and mental distress trying to understand what was happening and figuring out if I could overcome the issue. From the moment I met Dr Jess till to date she comes across as a close friend who is very good in her profession. She was professional and structured in her plan to help me overcome the issue. I was able to share my struggles and vulnerability to her without any judgment from Dr Jess. With Dr Jess help I was able to overcome my issue and move on with my life. I cannot stress enough how Dr Jess had changed my life and how I view certain topics that used to be a taboo to me previously. Thank you Dr Jess and God bless you being wonderful person that I stumble upon in my life journey.