A daily plant-based Tribulus terrestris extract formulated for men who want support for erectile function, sexual desire and sperm quality — the areas where Tribulus has actually been studied. No hype, no hormones, and a 60-day money-back guarantee.
Tribul is a dietary supplement built around a standardized extract of Tribulus terrestris — the spiny flowering plant used for generations in traditional male-wellness practice and now the subject of modern clinical study. It is not a device, a procedure, or a hormone. It is a daily capsule for men who want to support sexual performance and reproductive health with a botanical that has real published research behind it.
It suits men over 18 looking for support with erections and desire, couples working on fertility, and active men who use Tribulus terrestris for muscle growth goals alongside training. Note that Tribulus terrestris benefits for women have also been studied, but this formula is intended for men.
Research on Tribulus terrestris centers on erectile function and sperm quality with consistent oral use over weeks — so that is exactly how Tribul is designed to be taken.
The clinical research is on oral administration of a Tribulus terrestris extract. One serving with food each day keeps intake steady and easier on the stomach.
Published work reports that oral T. terrestris extract is expected to improve erectile function in clinical practice — the primary mechanism this product targets.
Human studies run over weeks, not days. Give it a 4 to 8 week window and reassess — most men complete a 90-day routine.
The research behind this page names a single active botanical, so that's all we list.
A standardized extract of the whole Tribulus terrestris plant — the same botanical examined in clinical papers on erectile function and in fertility studies on sperm shape, count and motility. Dosed per serving within the range used in human research, and printed plainly on the label so you always know your Tribulus terrestris dosage per day.
A full 30-day supply at the labeled serving. No proprietary blends hiding the amount.
We don't claim a testosterone increase, because evidence reviews don't support one in humans.
Every order ships with dosing directions, a 90-day routine tracker and side-effect guidance.
Oral Tribulus terrestris extract is expected to improve erectile function in clinical practice, according to published research (Do et al., 2013).
Studies in men with infertility suggest Tribulus terrestris may help sperm shape, count and motility.
Tribulus terrestris benefits for male sexual wellness are the most-studied use of this traditional botanical.
Popular as a Tribulus terrestris for muscle growth supplement among lifters — used alongside training, not instead of it.
A standardized extract of the Tribulus terrestris plant — no stimulants, no hormones added.
One consistent daily serving with food. Tribulus terrestris dosage per day is kept in the range used in human studies.
"I started Tribul mostly for the gym. Around week five my energy in workouts was noticeably better and my confidence in the bedroom followed. No jitters, no crash."
"My wife and I were working with a fertility clinic and I wanted a plant-based option. Six weeks in, my numbers looked better than they had in years. I'll take that."
"Honest review: it isn't overnight. By the second bottle my drive and firmness were clearly improved and I felt like myself again. The guarantee is what got me to try it."
Individual results vary. Testimonials reflect personal experience and are not a guarantee of outcomes.
Tribulus terrestris is a botanical traditionally used for male sexual wellness. Published research reports that oral administration of a Tribulus terrestris extract is expected to improve erectile function, and studies in men with infertility suggest it may support sperm quality — shape, number and motility. Despite widespread marketing, evidence reviews such as Healthline's conclude that Tribulus terrestris does not appear to raise testosterone levels in humans, so we don't make that claim. It is a wellness supplement, not a surgical or anatomical enlargement procedure.
Human studies of Tribulus terrestris typically run for several weeks, so consistency matters more than any single dose. Most men take it daily and reassess after 4 to 8 weeks; many choose the 3- or 6-bottle option so they can complete a full 90-day routine without interruption.
The honest answer is that the evidence is mixed and still developing. A 2013 clinical paper reported that a Tribulus terrestris extract is expected to improve erectile function while noting further clinical research is needed, and a 2025 review concluded that supplementation has a low level of evidence for improving erectile function in men with erectile dysfunction. Results vary from person to person, which is exactly why every order is covered by our money-back guarantee.
Tribulus terrestris side effects reported most often are mild and digestive — stomach upset, cramping or nausea — and it is generally taken with food to reduce this. Animal research (including a 2018 study on penile histomorphometry in rats and studies in women) means long-term human safety data is still limited. Do not exceed the label's Tribulus terrestris dosage, and talk to your doctor first if you are pregnant or nursing, have prostate, heart, kidney, blood-pressure or blood-sugar conditions, are scheduled for surgery, or take prescription medication.
Tribul Penis Enlargement is a dietary supplement. In the U.S., dietary supplements are regulated by the FDA under a different framework than drugs, and products like this are not FDA-approved to diagnose, treat, cure or prevent any disease. These statements have not been evaluated by the Food and Drug Administration.
Only through the official order page. Buying direct is the only way to be sure you receive genuine sealed bottles, current multi-bottle pricing and the money-back guarantee. Searches for "Tribal Penis Enlargement" or "Tribul Penis Enlargement" often surface copycat listings — those are not covered by our guarantee.
Every order is protected by a 60-day money-back guarantee. If you don't feel Tribul is working for you, contact support within 60 days of delivery — even with empty bottles — and you'll get a refund of your purchase price, no interrogation required.
Because Tribulus is studied over weeks rather than days, most men choose the 3- or 6-bottle package. Every option carries the same 60-day money-back guarantee.
1 Bottle
30-day supply
$59
$59.00 per bottle
3 Bottles
90-day supply
$147
$49.00 per bottle
6 Bottles
180-day supply
$198
$33.00 per bottle
Lock in multi-bottle pricing on Tribul Penis Enlargement while stock lasts. If it's not right for you, the 60-day money-back guarantee has you covered.