Rejuran S, I or H: What Do the Letters Mean on the Menu?

Hi, this is Time Return.

You are comparing clinics and the menus keep changing. Rejuran S here, Rejuran I there, Rejuran H somewhere else.

"Is S stronger than I?"

"What if I ask for the wrong letter?"

"Do I need to memorize all of them before I book?"

Today we go through the Rejuran S question and its cousins, Rejuran I and Rejuran H. We will tell you what we can say for sure, and what only a doctor can decide.

The short answer

You do not need to memorize what Rejuran S or any other letter stands for. Your skin and the doctor's plan decide what suits you, not the name on a menu.

So go in with a concern, not a code. "My under-eye skin looks thin" is more useful to a doctor than "I want Rejuran S."

What do the letters actually mean?

Rejuran S, I and H are product names you may see across clinics, along with labels such as Rejuran classic. Names and versions can differ between clinics and countries, and we only share what we can verify.

For ingredient and specification details, the maker's official information is the right source. Rejuran is made by PharmaResearch and contains polynucleotide (PN) from salmon DNA. Our plain-English guide to Rejuran covers the basics.

If you are also wondering about HB, we wrote a separate piece on Rejuran HB or Healer.

Who asks about Rejuran S, I and H?

Mostly people reading reviews and menus from several countries at once. It is a normal place to be.

You may be searching Rejuran I before and after photos and hoping to copy someone's result. We understand. Just read those photos carefully, and see our guide on how to read before and after photos.

What should you avoid, and what is fine?

NO

• Choosing from a letter alone
• Assuming a newer-sounding name is stronger
• Comparing a quote for one letter with a quote for another without asking what is included

OK

• Asking which option the doctor recommends, and why
• Sending a clear photo of your concern before you travel
• Asking what the plan looks like before you decide

Results vary by individual, and that is why the plan matters more than the label.

What about the Rejuran I treatment price?

People often search for Rejuran I treatment price first, then everything else. We get it.

We do not publish amounts here. Fees follow the plan, and the clinic confirms them by message. What shapes a fee is covered in what decides the Rejuran fee.

How do we decide at Time Return?

The doctor consults with you face to face. We check skin thickness, texture and sensitivity, then set the injection depth and amount for you.

Genuine product and exact dose are a standing rule here. Rejuran Healer is our hand-injection method, point by point, and we explain aftercare before you leave. You can meet Dr. Kim Yoo-ju on our doctors page.

If you want to know how numbing works, read how plasma 5-step anesthesia works.

Ready to ask?

Skip the letters, even Rejuran S, and send one message. Tell us your skin concern and, if you are visiting Seoul, your travel dates, and the doctor will tell you honestly what we offer and what suits you. You can also browse our Rejuran Korea overview or the FAQ first.

Redness, small bumps and mild swelling can appear after injections. Bleeding, infection and inflammation are possible complications. The doctor explains aftercare before you leave.