Testosterone Replacement Therapy (TRT)

Injectable TRT

Injectable TRT is one of the most effective ways to restore healthy testosterone levels, delivering steady, reliable results through intramuscular injections.  

$149

/month

Available

*Fully refundable if you are not approved for medication

Prescriptions Delivered To You

Provider Access

Easy At-Home Treatment

How It Works?

Injectable TRT is is delivered intramuscularly, where it forms a slow-release depot and is gradually absorbed into the bloodstream. This method allows for steady, controlled testosterone levels over time, avoiding hormonal spikes and crashes. Once in the bloodstream, testosterone binds to androgen receptors throughout the body, playing a regulatory role in systems related to metabolism, muscle maintenance, red blood cell production, and neurological function.

By correcting hormonal deficiencies, injectable TRT helps reestablish a more stable internal environment, which supports overall physiological balance.

Built for Strength and Vitality

1

Strength & Physical Performance

Testosterone supports protein synthesis and muscle development. Many see noticeable gains in lean muscle and improved strength during physical activity.

2

Drive and Confidence

Confidence, focus, and personal drive play a role in everyday momentum. This product is formulated for those seeking a reliable and consistent approach to maintaining their edge.

3

Focus and Mental Clarity

Consistency supports performance. Many individuals value maintaining steady levels that align with an active and demanding schedule, helping them stay sharp and engaged throughout the day.

4

Energy & Daily Momentum

Testosterone influences energy levels and overall vitality. Injectable TRT can lead to reduced fatigue, making daily tasks more manageable.

Discover the Right TRT Protocol for You

TRT Injection Enclomiphene Elevate T TRT Gel
Best For Long-term low T treatment Men wanting to preserve fertility Men seeking to boost testosterone while preserving fertility Daily, low-maintenance users
Delivery Type Intramuscular or subQ Oral tablet Oral capsule Topical skin application
Frequency 1x per week Daily Daily Daily
Acts as Testosterone? Yes (exogenous) Stimulates body's own T production Stimulates body's own T production Yes
Fertility Impact Can suppress sperm Preserves fertility Preserves fertility Can suppress sperm
Pros Effective long-term dosing Maintains fertility, oral option Supports natural testosterone production, oral option Easy to apply, non-invasive
Cons Needle discomfort, T swings Slower effect, indirect approach Indirect approach, requires consistent use Skin irritation, risk of transfer

What our clients say

Madison L. profile picture
Madison L.
18:34 28 Jan 26
Annika and Tristan have gone ABOVE AND BEYOND for my husband who is getting off of TRT!!! They have treated us like family and working with them has been such an enjoyable and rewarding experience. They have been extremely communicative and supportive every step of the way and have seriously been such a blessing throughout this journey. I will only recommend Annika and Tristan to anyone who is looking into hormone therapy, getting on or off of it. Their knowledge and understanding of hormones greatly surpasses that of any other hormone specialist we’ve worked with. Thank you!!
Brent P. profile picture
Brent P.
16:25 14 Jan 26
I have been working with this team for the past 8 months, I am in my mid 50's and was low on energy, not sleeping well and wanted to lose weight. I started testosterone for the first 6 months, and this helped with energy and sleeping better and even improved my moods. In the past 2 months, I started Tirzepatide and lost 15 lbs. This has helped me decrease the amount of food that I eat and made me feel better and increased my energy.
The team is always available to answer questions and give me advice but let's me make the decision on the steps I want to take.
R S. profile picture
R S.
13:12 29 Dec 25
Beth El K. profile picture
Beth El K.
00:34 12 Dec 25
Honestly the care the team at Activ 8 is exceptional! It is obvious they love what they do and they want to help every step of the way. Down nearly 50 pounds and counting. I highly recommend Annika and Tiina Liisa are amazing. So grateful to them!
Jade F. profile picture
Jade F.
19:21 01 Dec 25
Super informative and to the point. I really appreciated all the knowledge and positive results the practitioners themselves shared from their own experiences!
Evelyn P. profile picture
Evelyn P.
19:45 30 Nov 25
I was skeptical at first, but contacting Activ8 was one of the best decisions I have made. I started my Tirzepatide journey in Mid-October on a smaller dose and have lost 10 steadily! Aside from changes on the scale, I have more energy, less inflammation, and overall feeling more confident in myself. I have only had mild side effects, but have been able to manage as the weeks go on. I am extremely happy with the results so far, and excited to continue!
vince L. profile picture
vince L.
22:43 29 Nov 25
I have always been an extremely active person but when I reached my late 50s into 60s I could tell I was slowing down and lacked energy to do the things I loved. After talking with a good friend about testosterone injections I decided to seek out help. Anika and Tina Lisa were the gals I turned to for help. They put me on testosterone therapy and it has completely improved my life. I now have energy to do all the things I enjoy in life. No side effects, no issues, no worries, just happiness. 😀
Hans P. profile picture
Hans P.
05:17 26 Nov 25
As a recently retired father and grandfather, staying active has always been central to my life. But after cancer surgery and gradual weight gain, even my regular cycling and cross-country skiing weren’t enough to bring my weight down. Diets didn’t help, and my energy was fading.

When I decided to try Tirzepatide, my wife and I set the goal of reducing our BMIs below 25. To my amazement, I reached that goal in only 26 days. The injections were simple, comfortable, and easy to administer, and the only side effect I experienced was mild occasional heartburn, which resolved quickly.

Over time, I lost 13 kg (28.3 lbs) in total and returned to a BMI of 24. My workouts felt easier, skiing became effortless, and I regained the vitality I thought I had lost for good. With maintenance dosing, keeping the weight off has been straightforward.

Tirzepatide has been a fast, safe, and truly life-changing solution for me, and I am deeply grateful for the renewed health and confidence it brought back into my life.
Nancy P. profile picture
Nancy P.
21:34 01 Oct 25
Just starting my journey but Tiinaliisa and staff were friendly, and thorough in educating about the product. Would totally recommend!!!
Daniel R. profile picture
Daniel R.
00:12 01 Oct 25
After 2 doctors rolling their eyes at my 219 testosterone level, Activ8 saw me the SAME DAY that I set up the appointment, set up treatment immediately, and was very receptive / sympathetic to my problems associated with low testosterone levels. Highly recommend.
Teresa F. profile picture
Teresa F.
23:42 19 Sep 25
After only 8 weeks on Phentermine, I have lost 21 pounds! My goal is to lose 25 pounds, so I am very close to it in a short period of time. Along with exercise and a careful diet plan, this was a very easy experience and I recommend it to Menopausal women who struggle with sensible weight loss. The support and counseling from Annika and Tiinaliisa have been priceless!
Anna M. profile picture
Anna M.
02:52 17 Sep 25
I'm so happy I found activ8 health Annika and her team have been extremely professional and very supportive im 44 yrs old I started my weight loss journey about 3 months ago at 333 lbs I'm now 298 pounds I have lost 35 pounds taking phentermine 37.5 mg I have no side effects from the medication this is the 3 rd time I take phentermine to loose weight in the last 20 yrs the first time I took it was like 20 yrs ago I lost about 80 pounds I keeped it off for a lot of years the second time I used it was about 10 yrs ago and also lost about 90 pounds with no side effects this would be my 3 rd time taking it and I'm down 35 pounds I'm happy with my progress and will keep on taking it in my weight loss journey Annika and her team have always been available to answer any of my questions I highly recommend them to anyone
Glory A. profile picture
Glory A.
23:36 09 Sep 25
Wow. I started my weight loss journey and my hormones therapy journey. In a week and half, I’ve lost 10pounds. I know it sounds unbelievable but it’s my story and it’s the truth. This is not a bot, this is a real person. Hormonal Journey has been amazing as well. I am sleeping like no one’s business. I can’t stop sleeping. I feel so relaxed and full of energy and happy. And lastly, the doctors are amazing, feels like I am speaking with my sisters whenever I call them lol. Ladies, the best gift we can give ourselves is to take care of ourselves, it’s never too late to check your hormones to know what exactly is going on with your body.
Lindsay S. profile picture
Lindsay S.
21:05 21 Jun 25
I can't say enough about Activ8 Health in Phoenix! After thinking I had no hope of feeling better, I found them and they actually listened instead of just writing a prescription or telling me "this is normal". Thanks a million to Activ8 Health!
Juanita R. profile picture
Juanita R.
00:24 15 May 25
I am a a 60-year-old woman who was struggling with my energy and libido for many years. I had tried pellet therapy in the past, but had so much scar tissue in my buttock that was very painful and uncomfortable. I met Annika and she showed me the way with testosterone injections. It was an absolute game changer. I do one shot once a week. I have restored my youthful energy, my libido, and I am enjoying a wonderful relationship intimately with my husband like never before. The second half of life can be as vibrant as the first ! Thank you Annika. You guys are the best.
tammy B. profile picture
tammy B.
23:08 14 May 25
I’ve had a fantastic experience with Active8 Health. Annika and Tiinaliisa are incredibly kind, supportive, and always ready to answer any questions. They’ve been there for me every step of the way throughout my weight loss journey. I truly appreciate their guidance and care, and I highly recommend them to anyone looking for knowledgeable and compassionate support.
Natalie U. profile picture
Natalie U.
21:02 14 May 25
Annika and her team are heaven sent. Professional and thorough. Very accommodating. Meticulous in their diagnosis' and treatments. They took the absolute best care of my mom. Forever grateful. I highly recommend this amazing team! They become like trusted family.

Our Process

1. Evaluation

Our provider will ask some questions to determine if the product is right for you.

2. Lab Work

You will complete lab tests. These tests measure your testosterone levels and key health markers. 

3. Prescription Delivered

If you’re deemed eligible, your injectable testosterone is shipped directly to your home in discreet packaging.

Frequently Asked Questions

Testosterone Replacement Therapy is intended for adults who have symptomns of low testosterone that impact daily life. Levels are confirmed through lab testing.

You may be a candidate for TRT if you’re experiencing:

  • Persistent fatigue or low energy

  • Decreased muscle mass or strength

  • Low libido or sexual dysfunction

  • Difficulty focusing or mood changes

  • Poor recovery from exercise or injury

Eligibility is based on your lab results, symptom profile, and medical history. At Activ8 Health, our medical team conducts a thorough evaluation to determine if TRT is safe and appropriate for you.

Most men begin to notice improvements in energy, mood, focus, and libido within the first 3–4 weeks of starting injectable TRT. Physical changes like muscle mass, fat distribution, and stamina typically develop over 8–12 weeks with consistent use. Your provider will track progress and adjust dosing to ensure steady results.

Injectable TRT may reduce natural testosterone production, which can affect sperm production and testicular size. Side effects and risks are discussed at the time of your evaluation with a provider. If fertility is important to you, other solutions, such as Enclomiphene, may be a better fit.