Is Rejuran Safe?

Rejuran has picked up plenty of attention lately, often under nicknames like the "salmon DNA" or "salmon sperm" injectable. Names like that can make a genuinely gentle treatment sound alarming, so it is fair to ask whether it is actually safe for your skin.

The short answer is yes, for most people, when it is done properly. Like any treatment that involves needles, though, the reassurance sits in the detail: what it is made of, what to expect afterwards, and who is holding the syringe.

Key takeaways

Why the ingredient is well tolerated

Rejuran is made from polynucleotides, which are DNA fragments so similar to our own that the skin rarely treats them as foreign. That biocompatibility is a big part of why reactions tend to be minor. Rather than sitting in the skin as a filler, it is gradually reabsorbed while it supports repair, hydration and collagen.

Because it is designed to break down over time rather than remain as a permanent implant, the risk of long-term lumps is low, which is one reason it suits sensitive and reactive skin. It also helps that Rejuran is approved by the Therapeutic Goods Administration for use in Australia. That does not remove all risk, because no injectable can, but it means the product has met a recognised safety standard before it reaches your face.

What is normal after treatment

Most people walk out with very little to show for it. The reactions we do see are usually short-lived and settle on their own. In the first day or two you might notice:

These are signs of the skin doing its job, not warning signs. A cold compress and avoiding alcohol and blood-thinning supplements around your appointment can keep them to a minimum. If anything feels unusual or lingers longer than expected, the right move is always to call the clinic that treated you.

Is it safe to have more than once?

Because Rejuran is reabsorbed rather than left sitting in the skin, having it as a course is a safe, normal way to use it. Most plans involve a few sessions spaced a few weeks apart, then occasional maintenance. There is no need to crowd treatments together, and a sensible schedule gives your skin time to respond between visits. We set the spacing to suit you, not a fixed formula.

When Rejuran is not the right choice

A good safety record still depends on treating the right person at the right time. This is why an honest consultation matters more than any online review. During ours, we take a proper history so nothing is missed, because Rejuran is best delayed or avoided in a few situations:

If you take blood-thinning medication or bruise easily, that does not automatically rule you out, but it is worth raising early so we can plan around it.

The part that matters most: who performs it

Here is the honest truth the marketing rarely mentions. The safety of Rejuran has less to do with the product and far more to do with the hands and judgement behind it. Placement, depth and technique are what separate a smooth result from an avoidable complication.

At Beauty Science, Rejuran is carried out by a registered cosmetic nurse who assesses your skin first and tailors placement to your face rather than a template. That assessment is also when we flag anything that might change the plan, so surprises are rare. If you would like to see how it could suit your concerns, our Rejuran Healer treatment page walks through what the treatment involves.

Ready to ask your questions in person?

The best way to feel confident about any treatment is to have your questions answered by an experienced team that performs it regularly. At our Cosmetic Clinic in Richmond, we take the time to understand your skin, concerns and goals before recommending whether Rejuran is right for you.

If you're curious about Rejuran and want honest, personalised advice, book a consultation with Beauty Science and our Richmond team will help you understand your options and choose a treatment plan that suits your skin.