Every skin booster belongs to one of five families
The product names multiply every year. The underlying ingredients do not. Group them by what is actually in the syringe and the choice becomes manageable: hydration, regeneration, structure, collagen, volume.
Skin boosters are injectables that deliver an active ingredient into the skin to improve texture, hydration and firmness — as distinct from fillers, which occupy space to create a contour. They divide into five families: hyaluronic acid for hydration, polynucleotide (Rejuran) for regeneration, ECM products for structural support, PDLLA/PCL products (Juvelook, Gouri) for collagen stimulation, and CaHA (Radiesse) for volume with collagen stimulation.
The five families
| Family | Products at DIESTA | What it does |
|---|---|---|
| Hydration — HA | Water-light injection, SkinVive, Revive, Hyalowave | Delivers hyaluronic acid into the skin for internal hydration. SkinVive uses HA micro-droplets with less swelling and bruising; Hyalowave combines HA volume with a booster effect; Revive is the everyday hydration option. |
| Regeneration — PN | Rejuran, Rejuran HB | Polynucleotide derived from salmon DNA, supporting the skin's own repair. HB adds HA and lidocaine for comfort and hydration. The Healer, Eye and Booster lines are all available. This family has the most published clinical data behind it. |
| Structure — ECM | Rituo, Cellerdim, Juveacell | Supplies extracellular matrix directly. Rituo is human acellular dermal matrix, particle size around 100μm, AATB-accredited. Cellerdim is comparable with a finer particle (~75μm), suited to delicate areas such as under the eyes; also AATB-accredited. Juveacell is a high-concentration option (3% or 8%) using supercritical extraction, with accreditation in progress. |
| Collagen — PDLLA / PCL | Juvelook, Juvelook Volume, Gouri | Stimulates your own collagen rather than filling. Juvelook targets texture and pores; Juvelook Volume addresses hollowed areas; Gouri is a liquid PCL used across the full face and is the longest-acting stimulus of the three. |
| Volume — CaHA | Radiesse | Calcium hydroxylapatite: immediate volume plus ongoing collagen stimulation. |
Rejevan PN is also available, selected by purpose across PN, CaHA and HA volume formats. Which family suits you depends on what is actually deficient in your skin — hydration, repair capacity, structure or collagen — which is what the consultation determines.
Choosing by what your skin is short of
- Dehydrated, dull, tight despite moisturiser — the HA family. This is hydration inside the skin rather than on it, which is why topical products do not substitute.
- Rough texture, slow recovery, skin that looks tired — polynucleotide (Rejuran). This is the family with the strongest evidence base and the most predictable trajectory.
- Thin skin, structural depletion, delicate areas — ECM products. Rituo and Cellerdim differ mainly in particle size; the finer one is chosen for areas like under the eyes where the skin is thinnest.
- Enlarged pores, coarse texture, loss of firmness — the collagen family. Juvelook for texture and pores, Gouri for a longer-acting full-face stimulus.
- Visible hollowing alongside skin quality concerns — Radiesse, or Juvelook Volume, which add volume while stimulating collagen.
These work as a course, not a single visit
Skin boosters are cumulative by design. Rejuran is typically performed as a series at two-to-four-week intervals, after which the interval widens into maintenance. Patients commonly report a change in texture from around two to four weeks after the first session, with the result settling more definitively once the planned series is complete.
This has a practical consequence for anyone visiting Korea briefly: a single booster session during a one-week trip is not the treatment as designed. It is a reasonable introduction, but it is worth knowing that you are receiving the first instalment of something meant to accumulate. Discuss this at consultation — for some families, a different product with a longer-acting single-session profile may make more sense for your circumstances.
Expect temporary redness, swelling and small injection marks afterwards; recovery varies between individuals. Tell the clinic in advance if you are pregnant or breastfeeding, or taking medication for any condition.
Frequently asked questions
Usually not, and that is by design rather than a sales structure. Boosters accumulate: Rejuran is typically a series at two-to-four-week intervals before moving to wider maintenance intervals. Most patients notice texture change from around two to four weeks after the first session, but the result settles properly once the planned course is complete. If your time in Korea is limited, say so at consultation — it may change which family is recommended.
Different ingredients doing different jobs. Rejuran is polynucleotide, derived from salmon DNA, and supports the skin's own repair processes — it is the regeneration family, with the largest body of clinical data. Juvelook is PDLLA-based and stimulates collagen production, aimed at texture, pores and firmness. Neither replaces the other; which is appropriate depends on whether your skin's problem is repair capacity or collagen.
Yes — it belongs to the hydration family, delivering hyaluronic acid into the skin. It is one of the most familiar entries in the category and a common starting point, but it does not do what the regeneration, structure or collagen families do. If your concern is texture, pores or thinning rather than dehydration, hydration boosters will underdeliver no matter how many sessions you have.
Generally yes — the constraint is appearance rather than capability. Temporary redness, swelling and small injection marks are expected, and how quickly they settle varies. If you have an event, do not schedule the session immediately before it. If you are flying, the same applies: fresh injection marks and swelling are not dangerous on a plane, just uncomfortable and visible.
Uncommonly, a small nodule can be felt at an injection site. The important instruction is not to attempt to treat it yourself — do not massage aggressively, apply heat, or press it in the hope of dispersing it. If a lump persists, return to the clinic and have it examined. Most are manageable when assessed properly and made worse by improvised home remedies.
They address different problems: filler creates contour, boosters improve the quality of the skin itself. If both are relevant, the sequence is a clinical decision made after examination — sometimes structure is addressed first so that skin quality work is not undone, sometimes the reverse. What they should not be is interchangeable options presented as tiers of the same product.