Male fertility is responsible for around half of all cases where a couple struggles to conceive — yet it's still the half that gets the least attention. PROfertil Male is a clinically studied, hormone-free supplement designed to address exactly that. It supports the three factors that determine whether sperm can do their job: count, motility, and morphology.
No prescription required. No synthetic hormones. Just targeted nutritional support, backed by multiple independent studies.
Why sperm quality is declining
Studies show sperm count has fallen by around 58% over the last 50 years, with analysis of over 100 published studies confirming a consistent decline of 1–3% per year in the USA and Europe. The causes are a mix of environmental, dietary, and lifestyle factors — many of which are addressable.
Common contributors include poor nutrition, excess weight, smoking, alcohol, heat exposure, environmental chemicals such as BPA, and certain medications. Age also plays a role — sperm quality can begin to decline from 35, with chromosomal changes becoming more frequent over time.
The three markers PROfertil targets
| Marker | Why it matters |
| Sperm count | The number of sperm cells per ejaculation. Higher count increases the probability that at least one reaches and fertilises the egg. |
| Sperm motility | How effectively sperm swim. Poor motility is one of the most common causes of male-factor infertility — sperm that cannot move efficiently are unlikely to reach the egg. |
| Sperm morphology | The shape and structure of sperm cells. Abnormal morphology can affect the sperm's ability to penetrate the egg, even when count and motility are adequate. |
What's in it — and why
| Ingredient | Role in male fertility |
| L-carnitine | Acts as an energy substrate for sperm cells. Supports sperm motility and survival — one of the most researched nutrients in male fertility. |
| Coenzyme Q10 | Produces energy within cells. Associated with improved sperm motility and fertilisation rates. |
| Zinc | Supports sperm density and testosterone levels, which are both central to healthy spermatogenesis. |
| Selenium | Protects individual sperm cells and supports motility. |
| Vitamin E | An antioxidant that supports immune function and helps sperm cells penetrate the egg. |
| Folic acid | Essential for cell growth and division. Supports both sperm volume and quality. |
| Glutathione | Supports healthy function of the seminiferous tubules — the structures in the testes where sperm are produced. |
| L-arginine | An amino acid that supports healthy cellular function throughout the body, including sperm health. |
What the research shows
PROfertil Male has been the subject of multiple independent clinical studies. In a study of 95 men with at least two abnormal spermiograms, taking two PROfertil capsules daily for three months produced the following results:
| Outcome | Result |
| Average sperm cell density | +80.5% |
| Total sperm motility | 33% → 49% |
| Men returning to normal test results | 21 of 82 |
| Pregnancies reported | 14 |
Imhof M., Matthai C., Huber J.C. Gyn-Aktiv 2007;2:68.
Further studies have confirmed PROfertil's effectiveness across a range of specific conditions and markers, including:
— Significant reduction in sperm DNA fragmentation index, including in clinically challenging cases (DNA Study 2023)
— Improved sperm parameters in men with subclinical varicocele (2010)
— Improvement of all semen parameters vs control group (Controlled Study 2012)
— Demonstrated superiority over high-dose L-carnitine supplementation alone, due to the synergistic effect of the full formula (L-Carnitine Study 2016)
Who PROfertil Male is for
PROfertil Male is suitable for any man who wants to support his fertility nutritionally. It is particularly relevant if you:
— Are actively trying to conceive with your partner
— Have been told your sperm count, motility, or morphology is below normal
— Are over 35 and want to protect against age-related decline
— Have been trying to conceive for some time with no identified cause
— Want to optimise your fertility before you start trying
PROfertil Male and Kegel8
At Kegel8, we know that the path to parenthood involves both partners. PROfertil Male sits alongside PROfertil Female as part of a joined-up approach to fertility support — addressing the male factor with the same clinical rigour we apply to pelvic and reproductive health across our range. Kegel8 is the official PROfertil supplier for the United Kingdom.
Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle. If you are taking medication or under medical care, consult your doctor before use. Keep out of reach of children. This product is shipped within the UK only.
