What Supplements Can Increase Ejaculatory Volume?

The Question

Many men ask:

"Are there supplements that can increase my ejaculatory volume?"

This question is everywhere. On Google, throughout porn sites and across wellness forums. The promise is enticing: take a pill and see a measurable, visible difference. But how much of that is real, and how much is marketing?

The Rise of Bro-Science Supplement Marketing

In recent years, we've seen a sharp rise in "Bro-science" marketing: products promoted by individuals who use fragments of legitimate science to make unsupported clinical claims. This is particularly common in the realm of sexual health.

In the case of semen volume, supplement makers or influencers will often cite observational studies on amino acids, zinc, selenium or herbal ingredients that (at best) show some potential effect on sperm quality. They then use this observational data to claim that the supplement will result in a particular clinical outcome - in this case, increased ejaculatory volume. In this case it isn’t just bad science, it’s misleading.

Sperm ≠ Semen

A critical distinction that’s often ignored:

• Semen is the fluid that carries sperm and comprises the majority of ejaculatory volume.
• Sperm make up only a small portion of semen volume.

Many supplements that claim to “increase ejaculate” are actually just aimed at sperm quality, not total semen volume. These are two entirely different outcomes.

So while a supplement may help boost spermatogenesis (and may even be helpful for men trying to conceive), it does not mean that ejaculatory volume will increase.

What the Evidence Says

As of now:

• There are no high-quality, peer-reviewed studies showing that any over-the-counter supplement reliably increases ejaculatory volume.
• Many men try these supplements anyway—and as long as they’re safe and inexpensive, there’s probably no harm in doing so.
• But from a clinical perspective, the effect is, at best, negligible.

Our Perspective

We are not opposed to supplements per se—especially those that are affordable, low-risk, and taken with realistic expectations. But as of today, no supplement has demonstrated consistent, clinically meaningful increases in ejaculatory volume.

We are always open to new evidence or innovations in this space—but we need to distinguish between science-backed medicine and well-marketed guesswork.