3 Ways to Verify Genuine Rejuran: How This Skin Booster Works and What to Watch For

Rejuran is a skin booster made from a salmon-derived ingredient that is injected directly into the dermis. When the cold wind starts blowing, more people complain that their skin feels rough and has lost firmness. In this video, Dr. Jung Woo Hu explains how Rejuran works, its downsides, and how you can verify the product is genuine yourself before treatment.

What is a skin booster?

One of the most common treatments at plastic surgery and dermatology clinics is the skin booster. It delivers ingredients that are better than skincare products, in high concentrations, using a device or injections so the skin absorbs them well. Rejuran is the best-known example.

Rejuran's key ingredient: salmon PN

Rejuran's main ingredient is polynucleotide, or PN, extracted from salmon.

He explains that salmon DNA sequences are very similar to human ones, so there's no need to worry about safety. It has an excellent ability to regenerate collagen, improving skin firmness, and you can also expect smaller-looking pores and better skin texture. He also notes that it's one of the few products approved as an injectable, so it can be injected directly into the dermis, and that it has been on the market for over 10 years and is widely used both in Korea and abroad.

Pain and bumps: less surprising when you know what to expect

No treatment has only upsides. Like any injection, Rejuran can be painful. These days, injecting with the Rejumade device reportedly reduces pain considerably. Small raised bumps may remain on the skin after treatment, but they usually settle on their own within 2 to 3 days.

How to check that it's genuine

Well-known products like Rejuran tend to attract talk of counterfeits. The doctor says he has never seen a fake himself, but since there are rumors of counterfeit Rejuran, he demonstrates three ways to check.

1. Scan the QR code on the box with your phone to confirm it's genuine.
2. When you open the box, there's a printed authenticity message on the inside.
3. Hold your phone to the back of the product blister, and NFC confirms whether it's genuine.

If you're wondering whether it's a counterfeit, ask the clinic and be sure to have it verified before your treatment.

Why plastic surgery clinics also offer skin treatments

He adds that skin is also part of plastic surgery, and because many patients want skin care after surgery, plastic surgery clinics also perform a lot of skin booster treatments like Rejuran. In fact, most plastic surgery clinics offer skin boosters, which means you can handle both your surgical consultation and your skin care in one place.

If you're considering Rejuran during the dry season, start by making a habit of checking the three authenticity markers yourself before your treatment.