Prime-T Testosterone Booster
RSP Nutrition

Prime-T Testosterone Booster

Loaded with key ingredients to support the body's natural testosterone production or re-engage after noticing a decline.*
RSP Nutrition Prime-T contains nutrients such as Fenugreek, maca, d-aspartic acid, and a vitamin complex of vitamins d, b3, and b12 to support the body's regulation and production of hormones to boost natural testosterone levels over time.*
9.2  out of 10  (1,159 Reviews)
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Product Overview


Scientifically Formulated Testosterone Booster*

Prime-T Containers

Performance Benefits

Muscle Icon

Boost Testosterone*

500mg Fenugreek +

3,200mg D Aspartic Acid +

250mg Safed Musli Extract +

100mg Boron Citrate

Kettlebell Icon

Build Lean Muscle*

3,200mg D Aspartic Acid

Male Gender Symbol

Libido Support

300mg Maca Extract +

250mg Safed Musli Extract

Energy Icon

Energy & Vitality

3,200mg D Aspartic Acid

Reduce Icon

Maintains Healthy Hormone Levels*

250mg Diindolylmethane (DIM) +

100mg Boron Citrate

Battle Ropes


Muscle Icon Daily Testosterone Support*
Prime-T Containers
RSP Athletes

Prime-T is scientifically formulated to be the perfect solution for complete testosterone support.* The key ingredients in Prime-T have been shown to naturally support free testosterone levels, promote health estrogen balance, facilitate lean the building of lean muscle and strength, and support a healthy sex drive and libido. * The use of these scientifically proven ingredients creates a well-rounded supplement to support overall health, fitness and balance.*

Athlete Lifting

Ratings & Reviews

Prime-T Testosterone Booster
Overall Rating
1,159 Ratings
Verified Buyer Rating
614 Ratings
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Mar 17, 2021
Verified Buyer

If you are concerned about these pills, they are large and extremely difficult to swallow, here is a simple solution. Cut them in half, and grab some vitamin C wafers and chew them together. Simple as that. The product works quite nicely too!

Mar 10, 2021
Verified Buyer

Hear me out... I do notice an effect while taking these but the 4 horse pills take literally 20+ minutes to go down is hell. As I'm typing I can still feel them slowly being pushed down. 100% will not buy again but if you're okay with large pills then go for it because they work. I'm glad I got these on sale because I'll probably throw them away and buy new ones.

Feb 26, 2021
Verified Buyer

powerfull Product.

Feb 03, 2021
Verified Buyer

I can’t say I’ve tried any other testosterone boosters. However, doing research into which ingredients are best and the dosage needed for each in order to be effective, this one wins against any other I’ve seen so far. There are a lot of ingredients, and a lot of each ingredient, which explains the size of the pills. If you want a smaller pill then I’d suggest finding another brand with less ingredients. However, if you want the most out of a testosterone booster you’ll have to buy an additional bottle or two of something else. Like I said, these pills have everything I’ve researched is considered “best” for testosterone boosting. The pills are huge because there’s a lot of ingredients. The only ingredients it’s missing for me that I had to buy outside of the pills is dhea. Not a big deal. At first I felt really crappy taking them. I felt sluggish and run down. After about a week my body adjusted and I felt normal again. I have noticed my muscle mass in increasing more than when I didn’t take them. My mood has improved dramatically. I suffer from depression and anxiety and since I’ve been taking this I feel a lot better emotionally. I can’t say this will happen for everyone and my understanding is that testosterone boosters for women, the most you can get is a 20% increase in testosterone levels. Whatever, I haven’t gotten my hormones checked but I’m assuming the little boost these pills give me helps with whatever level I’m at with my testosterone. I feel stronger and building muscle has seemingly become much easier. My mood has improved and I feel great. I highly suggest these pills.

Sep 25, 2020

Why would you take this vitamin D - Herbal supplement - with a D-aspartic acid fat partitioner AT NIGHT ON AN EMPTY STOMACH ??? you have to eat fat and food with it wtf. I prefer my vitamin D in the morning, thank you.

Sep 17, 2020

Appears to be a good product with quality ingredients. But these are the largest pills I've ever seen and they're are an absolute chore to swallow. I take my fair share of supplements and have never had any issue with swallowing a pill. These are a nightmare though. If you have ANY issues with swallowing pills, forget about these completely.

Aug 26, 2020
Verified Buyer

Mu husband has tried a few different brands, he has seen the best results with this one. He also takes it at bedtime, ( not with a completely empty stomach). and Yes the pills are HUGE otherwise we would give it a 10. His sex drive definitely went up and he has had better sleep.

Aug 26, 2020
Verified Buyer

The excitement I felt for this product was quickly squashed the moment I saw the monstrous pills. I would have preferred eight smaller pills. Besides the anxiety that accompanied the effort to swallow, I didn't have a good experience with this product. It didn't help me sleep, not at all, quite the opposite; I laid in bed for a good four hours before I succumbed to restless sleep. Some of the effects I felt from this product were a warm sensation wrapped around my head as well, as what I can only assume was a hot flash. I kicked the covers off and turned the AC low. In the morning, my urine was dark despite the amount of water I drink and my kidneys ached. Unfortunately, this product didn't work for me, although I don't know if I would have kept taking it if it had, since I already take an Animal stack multivitamin. Combined with this, I understand why my kidneys hurt, that is a lot of vitamins to process. I think it would be simpler to find the individual ingredients and take them as opposed to this hard to swallow product.

Aug 04, 2020
Verified Buyer

P.S. I found this product to be a little ruff on the stomach when taken on an empty stomach. When I take it with food it puts me to sleep faster. The output was still the same great results.

Jun 23, 2020
Verified Buyer

I just recently received my order of Prime-T. I know it say to take it on an empty stomach 30-60 min before bedtime. But I usually eat and go to bed with in 30-60 min after eating. I was wondering if anyone else out there does like I do. And if so do y’all still take it 30-60 min before bed time even though it may not be on an empty stomach or do you take it earlier before you eat? I would greatly appreciate any info. And the reason I didn't rate more then 6 is that I just revived it.

Jun 15, 2020

It does work, but the pills are huge and really messed up my stomach.

May 20, 2020
Verified Buyer

Excellent product

Apr 29, 2020
Verified Buyer

Can i drink a casin drink with this before bed. I know it aya empty stomach. Any opinions.

Mar 30, 2020
Verified Buyer

Noticeable Boost within a few days. Highly recommend. Improved sleep, stamina, and sexual performance.

Feb 01, 2020
Verified Buyer

I’ve been on this product for 60 days. I saw more stamina. Now that i am off the product for 30 days and I can notice during my lifts. Only downside is the pills are massive but you get used to them.

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120 Tablets
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RSP Nutrition Prime-T contains nutrients such as Fenugreek, maca, d-aspartic acid, and a vitamin complex of vitamins d, b3, and b12 to support the body's regulation and production of hormones to boost natural testosterone levels over time.*

What's in RSP Nutrition Prime-T Testosterone Booster

120 Tablets
Serving Size 4 Tablets
Servings Per Container30
Amount Per Serving %DV *
Vitamin D (as cholecalciferol) 3,000 IU 750%
Vitamin B3 (as niacinamide) 20 mg 100%
Folate (as folic acid) 800 mcg 200%
Vitamin B12 (As cyanocobalamin) 12 mcg 500%
Zinc (as zinc citrate) 12 mg 109%
D-Aspartic Acid 3,200 mg **
Fenugreek Extract 500 mg **
Maca Extract (root) 300 mg **
3,3’-Diindolylmethane (DIM) 250 mg **
Safed Musli Extract (Chlorophytum borivilianum)(root) 250 mg **
Boron Citrate (supplying 5% boron) 100 mg **
BioPerine® 5 mg **
* Percent Daily Values are based on a 2,000 calorie diet.
** Daily Value (DV) not established.
Other Ingredients:
Dicalcium Phosphate, Microcrystalline Cellulose, Croscarmellose Sodium, Stearic Acid, Magnesium Stearate, Silicon Dioxide, HPMC, Titanium Dioxide, PEG-400

Directions For Prime-T Testosterone Booster: As a dietary supplement, take four tablets on an empty stomach 30-60 minutes before bedtime.

Warnings: Not intended for use by persons under age 18. Do not exceed recommended dose. Consult with your physician prior to use if you are pregnant or nursing, if you have a known medical condition or if you are taking medications. Discontinue use and call a physician or licensed qualied healthcare professional immediately if you experience any negative side effects, severe headaches, or other unusual symptoms.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.