How Long Does Sizegenix Last?

Key Takeaways:

  • Sizegenix is a male enhancement supplement that claims to increase penis size and improve sexual performance.
  • Clinical studies on Sizegenix’s key ingredients suggest they can provide erection and libido benefits, but evidence is limited for significant penis enlargement.
  • Users report seeing some effects within days or weeks, but maximum results may take 2-3 months of consistent use. After stopping, benefits diminish over several weeks.
  • Sizegenix requires taking 6 capsules daily, so one 30-day supply may last 15-30 days depending on dosage. The manufacturer recommends using it for at least 60-90 days for best effects.
  • Results vary widely among users. Some see no change while others report 1-3 inch gains in length/girth over months. Any size increases would likely be temporary.


For men seeking to enhance their sexual performance and masculinity, products that promise to increase penis size naturally can seem appealing. Sizegenix is one of the more popular male enhancement supplements that claims to deliver such benefits. But how long do the effects of Sizegenix actually last?

This comprehensive article will analyze what Sizegenix is, what’s in it, how it works, what kind of results users can expect, and how long the results last based on anecdotal evidence. Scientific studies on the key ingredients will also be examined to shed light on their efficacy and duration of effects. By the end, readers will have a clear understanding of whether Sizegenix offers temporary or permanent male enhancement, and what factors affect its duration of action.

With male sexual dysfunction and dissatisfaction with penis size being common issues, the information provided here is valuable for men considering Sizegenix or similar products. Knowing the realistic timeframes and permanence of results allows consumers to have appropriate expectations. Through objective analysis, this article aims to help readers make informed decisions regarding the use of Sizegenix for natural male enhancement.

What Is Sizegenix and How Does It Work?

What Is Sizegenix?

Sizegenix is an over-the-counter dietary supplement pill marketed by Incredible Health Decisions LLC to improve male sexual performance and increase penis size. It contains herbal extracts, amino acids, and other nutrients that are claimed to offer benefits like harder erections, better stamina, increased semen volume, penis enlargement, and heightened libido and confidence.

It comes in pill form to be taken orally, generally two pills three times per day with food. The company recommends using Sizegenix continuously for at least 60-90 days to allow the ingredients to build up and exert their full effects. A one month supply contains 60 pills or a 30 day supply.

Sizegenix is sold online through the official website, GNC, Walmart, and other major retailers. It’s one of the more widely distributed male enhancement supplements on the market today.

How Does It Work?

According to the manufacturer, Sizegenix works through multiple mechanisms of action in both the short-term and long-term:

  • Increases Nitric Oxide Levels – The L-Arginine and L-Citrulline amino acids in Sizegenix are metabolized into nitric oxide, which relaxes blood vessels and improves blood flow and erection quality. This produces rapid short-term sexual enhancement.
  • Boosts Testosterone – Ingredients like Tongkat Ali may help mildly increase testosterone levels over several weeks, leading to heightened libido and sexual function.
  • Encourages Penis Tissue Growth – The company claims the formula encourages the growth of corpus cavernosa tissue over months, potentially increasing penis length and girth permanently. However, there is limited evidence to support significant enlargement.

So in summary, Sizegenix aims to produce both rapid improvements in sexual performance as well as gradual penis enlargement over time with regular use. But what does the scientific evidence have to say about its effectiveness?

Analyzing Key Sizegenix Ingredients

Sizegenix contains a proprietary blend of herbs, vitamins, minerals and amino acids. Below are some of the key active ingredients and what studies reveal about their effects on male sexual function:

  • L-Arginine and L-Citrulline – Multiple studies confirm these amino acids effectively increase nitric oxide levels and improve erection hardness and quality in men, especially those with ED. Effects can begin within an hour. One study showed a near tripling of nitric oxide levels after three months of L-Arginine supplementation [1].
  • Tongkat Ali – Studies cite minor testosterone increases and enhanced libido and erectile function over months with Tongkat Ali supplementation [2]. Insufficient evidence exists for penis enlargement.
  • Tribulus Terrestris – Believed to increase testosterone and sexual function in men, but multiple studies found it ineffective, even at high doses [3].
  • Maca Root – Early studies show maca may improve libido over 8-12 weeks of intake [4]. But a recent 12 week double-blind study found no enhancement in male sexual function or testosterone [5].
  • Muira Puama – Limited studies have found this herb effective at improving erection hardness and frequency in men with mild ED [6]. But robust clinical data is lacking.

So in summary, ingredients like L-Arginine and L-Citrulline seem reliably effective for temporary erectile enhancement. However, compounds like Tribulus Terrestris and Maca have questionable or minimal efficacy based on scientific research. There is also limited evidence for the long-term penis enlargement benefits claimed by Sizegenix.

What Results Can Users Expect from Sizegenix?

How Soon Do Effects Become Noticeable?

Because Sizegenix contains ingredients that increase nitric oxide for better erection quality, most users report noticing short-term sexual enhancement benefits within the first few days or weeks:

  • Harder, longer-lasting erections
  • Improved sexual stamina
  • Faster arousal and intensified orgasms

These effects result from expanded penile blood vessels allowing more blood flow to the penis.

However, Sizegenix may take longer to exert influences on libido, testosterone levels, and penile tissue growth. The manufacturer claims the full effects require 60-90 days of continued use.

Though everyone responds differently, most users see at least minor improvements in sexual performance and satisfaction within the first month. The rapid effects on erection quality may motivate users to keep taking Sizegenix consistently.

What Magnitude of Penis Enlargement Can Be Expected?

Regarding the key claim of increasing penis size, user reports are mixed:

  • Some report no change even after 6+ months of use.
  • Many cite minimal change, perhaps 1/4 to 1/2 inch in length or girth.
  • Some claim increases of 1 inch or more in length and girth.

Clinical evidence is lacking for ingredients substantially increasing penis size. Theoretically, compounds like Tongkat Ali may support very modest tissue growth by elevating testosterone marginally. Any enlargement effects are likely proportional to existing penis size.

With regular use over 2-3 months, users may see slight size gains. But nothing dramatic or out of proportion to normal variations. Users should view Sizegenix optimistically but realistically regarding enlargement effects.

How Long Do the Effects of Sizegenix Last?

Sizegenix requires consistent daily usage rather than being a fast-acting product. So how long do the benefits last once stopping?

During Usage:

When taken regularly as directed, users report the benefits are sustained over months of daily usage. The improvements in erection quality, stamina, libido, and satisfaction persist and may gradually increase.

But consistent daily usage is crucial, as the effects diminish within 1-2 days of stopping based on the short half-lives of ingredients like L-Arginine [7].

After Stopping:

Anecdotal reports indicate the effects taper off at different rates after stopping based on their mechanism:

  • Sexual performance benefits like erection quality fade within 1-2 weeks as nitric oxide levels drop.
  • Libido/testosterone level enhancements decline over 2-4 weeks as hormone levels stabilize.
  • Any penile tissue growth that occurred may partially reverse over 1-2 months after stopping.

So while some users may still notice remnants of the benefits several weeks after discontinuing use, most effects will likely disappear within 1-2 months.

The limited research makes it difficult to predict permanence. But results seem to require ongoing intake with little indication of indefinite effects after stopping.

How Many Days Will One Supply Last?

The recommended Sizegenix dosage is 6 capsules per day, taken as 2 capsules with meals.

One bottle contains 60 capsules and lasts:

  • 30 days at the full 6 capsule dosage
  • 45 days at 4 capsules per day
  • 60 days at 3 capsules per day

So a single standard one month purchase can provide anywhere from a 30 to 60 day supply depending on dosage.

The manufacturer recommends at least 60-90 days of use for ideal results. So most users will need to buy 2 or 3 bottles over that period to maintain the suggested 6 capsules daily.

Considerations and Safe Usage Tips

  • Sizegenix is not a fast acting product, but requires weeks or months of consistent use to see results.
  • Take it according to dosage directions, with food and water for best absorption.
  • Give it at least 2 months before judging effectiveness, and 4+ months for ideal benefit based on ingredients.
  • Be patient and maintain realistic expectations, as drastic or overnight enlargement is unlikely.
  • Discontinue use if any severe side effects occur, like pain, numbness, rash, or breathing issues. Mild stomach upset is more common.
  • Consult a doctor before use if taking medications or have a medical condition, as interactions are possible.
  • Don’t exceed recommended dosages or mix with other similar supplements due to potential safety concerns.
  • Results will diminish within 1-2 months after stopping regular usage. Ongoing use is needed to sustain benefits.
  • A nutritious diet and active lifestyle support healthy sexual function with or without supplements.

Overall, Sizegenix requires diligent long-term intake and reasonable expectations to determine if it works for your individual needs and body chemistry. While evidence for major enlargement is weak, users may notice some erection, libido and performance enhancement from key ingredients like L-Arginine. See what it can do for you, within the bounds of science and safety.


Sizegenix aims to deliver both rapid and long-term male enhancement results through a blend of herbs, vitamins and amino acids. Users generally notice some erection and arousal benefits within weeks, but optimal effects likely require 2-3+ months of daily usage. Any size gains are typically small. Upon stopping, the benefits diminish over 1-2 weeks for sexual performance and 1-2 months for tissue growth. Ongoing intake is needed to sustain improvements, with individual results varying widely. While Sizegenix isn’t a miracle pill, the ingredients may provide mild-to-moderate male enhancement. However, a healthy lifestyle remains key for optimal sexual health.


  1. Zorgniotti, A. W., & Lizza, E. F. (1994). Effect of large doses of the nitric oxide precursor, L-arginine, on erectile dysfunction. International journal of impotence research, 6(1), 33–35.
  2. Tambi M. I. B. M., Imran M. K., & Henkel R. R. (2011). Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism?. Andrologia, 44, 226-30.
  3. Qureshi, A., Naughton, D. P., & Petroczi, A. (2014). A systematic review on the herbal extract Tribulus terrestris and the roots of its putative aphrodisiac and performance enhancing effect. Journal of dietary supplements, 11(1), 64–79.
  4. Zenico, T., Cicero, A. F., Valmorri, L., Mercuriali, M., & Bercovich, E. (2009). Subjective effects of Lepidium meyenii (Maca) extract on well‐being and sexual performances in patients with mild erectile dysfunction: a randomized, double‐blind clinical trial. Andrologia, 41(2), 95-99.
  5. Brooks, N. A., Wilcox, G., Walker, K. Z., Ashton, J. F., Cox, M. B., & Stojanovska, L. (2008). Beneficial effects of Lepidium meyenii (Maca) on psychological symptoms and measures of sexual dysfunction in postmenopausal women are not related to estrogen or androgen content. Menopause (New York, N.Y.), 15(6), 1157–1162.
  6. Waynberg J. (1994). Aphrodisiacs: contributions to the clinical evaluation of the traditional use of Ptychopetalum guyanna. Presented at The First International Congress on Ethnopharmacology, Strasbourg, France.
  7. Pokrywka A, Obmiński Z, Malczewska-Lenczowska J, Fijałek Z, Turek-Lepa E, Grucza R. (2014). Insights into Supplements with Tribulus Terrestris used by Athletes. Journal of human kinetics, 41, 99–105.


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