Celldiem vs. Rejuran HB,

Which one is right for me?

These days, more and more people are noticing

a significant drop in their skin's elasticity.

Even in the clinic, many patients compare these two treatments

and ask which one would be better for them.

Search results are filled with reviews and price comparisons,

but the truth is, these two products

work in completely different ways.

Rather than simply choosing what 'others say is good,'

you need to first understand

what result you actually want—that's the key to avoiding disappointment.

The real difference between these two treatments—the kind I usually only explain in the consultation room,

I'll walk you through everything clearly, from ingredients to outcomes.

💡 Key takeaways from today's post

Q. How are the ingredients of the two products different?

A. Celldiem is

a structural booster based on human allogeneic dermis,

Rejuran HB is based on

salmon-derived regenerative ingredient (PDRN).

Q. Which is better for adding volume?

A. If you want volume to fill sunken areas,

Celldiem, with its physical support strength, is far more effective.

Q. Is it better to get both?

A. Since their purposes differ, there can be synergy,

but rather than combining them unconditionally,

it's more important to prioritize based on your skin condition.

The two products

start with different ingredients

Many people misunderstand this,

but aside from both being delivered by injection,

their ingredient structures are completely different.

• Celldiem

  
  
  
  

  Extracellular matrix derived from human allogeneic dermis (ADM).

  It enhances structural support

  by introducing a component most similar to the skin's own internal structures.

• Rejuran HB

  
  
  
  

  Salmon-derived PDRN (regenerative ingredient)

  + hyaluronic acid (moisture).

It focuses on triggering cell regeneration signals

and delivering hydration.

If volume is your goal,

here's why Celldiem is the answer

Rejuran HB

excels at improving skin texture,

but when it comes to actually filling sunken areas,

Celldiem has the edge.

That's because its biocompatible components settle into the skin

and physically support the area from within.

In my experience, if your concerns are sunken cheeks, early nasolabial folds,

or under-eye hollowness,

satisfaction with Celldiem has been significantly higher.

Rejuran HB, on the other hand,

delivers noticeable improvements in hydration and skin smoothness,

but lacks the physical strength to restore volume.

👨‍⚕️ Dr. Wi Young-jin's practical note:

When volume loss is the primary concern,

Celldiem alone

is often more than sufficient, in my view.

For the cheek area, starting with around

1–2cc per side

and monitoring progress is the safest approach.

That said, with Celldiem,

results can vary significantly

depending on the practitioner's judgment.

Rather than chasing price promotions,

I recommend choosing an experienced clinic that knows exactly which area to treat and how deep to inject—

that makes all the difference.

Who is

Rejuran HB better suited for?

Rejuran HB is recommended for those whose main goal is

'skin regeneration' rather than 'volume restoration.'

• Those with rough skin texture and noticeable pores

• Those bothered by shallow fine lines

• Those with reduced skin regenerative capacity, leaving skin persistently dull and dry

Its volume effect may not last as long as Celldiem's,

but for boosting overall skin moisture density and regenerative capacity,

it remains an excellent choice.

Key summary

Celldiem is for volume filling,

Rejuran HB is primarily for skin regeneration and texture improvement.

Start by deciding whether your goal is 'filling'

or 'refining texture.'

Frequently Asked Questions (FAQ)

Q1. Celldiem is human-derived—

I'm a little nervous. Is it safe?

A. It is a sophisticated material engineered to minimize immune reaction risk,

with a long clinical track record.

You can feel confident it's a safe treatment.

Q2. Is Celldiem different from fillers?

A. Yes, it is.

Fillers work by immediately adding volume,

whereas Celldiem supports the skin's structure

and promotes natural regeneration from within.

Q3. Getting both sounds expensive—

what should I do?

A. Rather than stretching your budget to combine both,

start with the concern that bothers you most (e.g., sunken cheeks)

and address issues one by one—

that's a much wiser investment.

If you have any questions,

feel free to reach out to us on WhatsApp.

This has been Dr. Wi Young-jin.

Related reading

▶Submandibular Botox for double chin—don't just take it at face value

▶"Can one CureJet session fully fill pitted acne scars?" The doctor's honest answer

▶Gangnam, Hongdae, Myeongdong—where should you actually go for a dermatology clinic?

▶Peanut-shaped face: can temple filler help? Radiesse duration & side effects—fact-checked

▶Duoderm replacement schedule: everything you need to know