In autumn, falling temperature and humidity make skin tight and rough. When oil remains on the surface but skin feels tight underneath after cleansing, fine lines show and texture looks dull. Beyond moisturiser, a skin booster suited to your skin can manage hydration and condition. Rejuran Healer, Juvelook and water-glow injections are commonly used — all injected, but their main ingredients and aims differ, so it helps to know what each focuses on.
Contents
Why is autumn dryness worse?
In autumn, lower temperature and humidity let moisture evaporate more readily from skin. Indoor heating and cooling and wide daily temperature swings weaken the barrier further. Inner dryness differs from surface flaking: skin feels very tight after cleansing, dries again soon after applying products, and texture roughens so fine lines stand out.
Basic moisturising to supply water comes first, and depending on skin condition a skin booster can help manage condition. Rejuran Healer, Juvelook and water-glow injections are the three commonly used in autumn.
Read alsoManaging seasonal dryness is covered in “Dry, tight skin in the autumn transition: how should it be managed?” (Korean).
Which skin suits Rejuran Healer?
Rejuran Healer is a skin booster that injects PN (polynucleotide) into the skin. It is used where ageing has reduced firmness, texture has roughened or fine lines are visible — particularly in autumn, when skin dries and looks dull, managing overall condition rather than hydration alone matters.
It delivers active ingredient to the dermis to improve the skin environment, and can be considered where firmness, fine lines and texture are managed together: PN delivered directly into skin, firmness, fine lines, rough texture, dry and dull condition.
So it suits skin that needs firmness and texture managed alongside dryness, rather than hydration alone.
In a systematic review of nine polynucleotide studies (219 patients), wrinkles, texture and firmness improved, but study quality was low to moderate and more rigorous research is needed.[1]
What concerns does Juvelook address?
Juvelook is a skin injection using PDLLA and hyaluronic acid. It delivers active ingredients to manage firmness, fine lines and texture, and can be chosen for anti-aging where skin has thinned and fine lines have appeared.
Its distinguishing point is that it does not aim only at immediate hydration: it prompts responses related to collagen production, managing firmness and fine lines over time — PDLLA with hyaluronic acid, firmness, fine lines, texture, and condition lost to ageing.
So where autumn dryness comes with reduced firmness and increasing fine lines, Juvelook can be considered.
What can a water-glow injection do?
A water-glow injection delivers hydrating ingredients such as hyaluronic acid directly into the skin to manage moisture and radiance. In autumn, skin tightens after cleansing, makeup lifts and skin looks dull. Where moisturiser on the surface still leaves skin feeling dry quickly, hydration needs focused management.
It focuses on delivering hydrating ingredients directly to manage dryness and the dullness that comes from lack of moisture: hydration delivered directly, moisture management, dry and dull skin, radiance, and fine lines from dehydration.
So among the three, it is the choice where hydration and a dewy look are the priority.
In a study of 20 patients given three HA skin booster sessions at two-week intervals, wrinkle scores fell 40% at week eight, with hydration and elasticity also improving.[2]
How do the three differ?
All three deliver active ingredients into the skin, but what they focus on differs.
| Skin booster | Main ingredient | Main focus |
|---|---|---|
| Rejuran Healer | PN | Texture, firmness, fine lines, skin condition |
| Juvelook | PDLLA + hyaluronic acid | Firmness, fine lines, texture |
| Water-glow injection | Hyaluronic acid etc. | Hydration, dryness, radiance |
Put simply: Rejuran Healer for overall condition and firmness, Juvelook for anti-aging centred on firmness and fine lines, water-glow for hydration and a moist finish. So the choice should follow your most pressing concern — dryness, loss of firmness, or fine lines and texture — rather than which treatment is “better”.
How should skin be managed afterwards?
A skin booster does not remove the need for daily moisturising. In autumn, apply moisturiser generously after cleansing before skin dries, and prevent excessive moisture loss with a hydrating cream where skin dries easily. Avoid long washing with hot water or rubbing the skin hard, and reduce excessive exfoliation when skin is sensitive.
UV protection is still needed in autumn: UV affects skin ageing regardless of season, so keep using sunscreen outdoors. Immediately after a skin booster, do not massage or press the area firmly, and moderate high-intensity exercise or saunas as advised.
Skin boosters: common myths and facts
| You may think… | In practice |
|---|---|
| "All skin boosters are the same." | Ingredients differ in whether they repair, add volume or hydrate. |
| "One session ends inner dryness." | Most are planned over several sessions. |
| "Exfoliate right after treatment." | During recovery, reducing irritation comes first. |
When helping someone choose a skin booster I ask what they want to change first. Repair points to Rejuran, hollowing and firmness to Juvelook, immediate hydration to a water-glow — the goal comes before the product.
In autumn, lower humidity and temperature swings dry the skin, making tightness, rough texture and fine lines more visible. Alongside basic moisturising, a skin booster matched to skin condition can help: Rejuran Healer for texture, firmness and overall condition, Juvelook for anti-aging centred on firmness and fine lines, and water-glow injections for hydration and dryness. In a review of nine polynucleotide studies (219 patients) wrinkles, texture and firmness improved though study quality was low to moderate, and in 20 patients three HA booster sessions reduced wrinkle scores 40% at week eight — so the choice should follow the dominant concern, with moisturising and UV protection continued regardless.
🔬 The research behind this article
These are the international journal papers that support the content above. Select a title to open the abstract on PubMed.
- Journal of Cosmetic Dermatology 2025 — systematic review of polynucleotides, 9 studies / 219 patientsLampridou S, Bassett S, Cavallini M, Christopoulos G. The Effectiveness of Polynucleotides in Esthetic Medicine: A Systematic Review. J Cosmet Dermatol. 2025;24(2):e16721.Key: wrinkles, texture and firmness improved; study quality low to moderateText [1] · PMID 39645667 · DOI
- Journal of Cosmetic Dermatology 2024 — HA skin booster in 20 patientsLee JH, Kim J, Lee YN, et al. The efficacy of intradermal hyaluronic acid filler as a skin quality booster: A prospective, single-center, single-arm pilot study. J Cosmet Dermatol. 2024;23(2):409-416.Key: wrinkle score down 40% at week 8Text [2] · PMID 37705328 · DOI
🎬 Watch: Dr. Park Seong-Soo on video
Korean-language videos from BongBong Plastic Surgery's official channel and Dr. Park's channel, “Seongsu-ro Doctor”. Titles are translated for reference; selecting one opens YouTube.
- Do not choose just any skin boosterSeongsu-ro Doctor · 2024.07.08
- A skin booster that becomes your own skin? A real reviewSeongsu-ro Doctor · 2025.07.23
- Rejuran Healer eye treatmentSeongsu-ro Doctor · 2019.12.30
Frequently asked questions
Which skin booster is best for autumn inner dryness?
A. For hydration and dryness specifically, a water-glow injection; for dryness with texture, firmness and fine lines, Rejuran Healer; for anti-aging centred on firmness and fine lines, Juvelook.
How do Rejuran Healer and a water-glow injection differ?
A. Rejuran Healer uses PN to focus on overall condition including texture, firmness and fine lines, while a water-glow injection delivers hydrating ingredients such as hyaluronic acid for moisture and a dewy finish.
Can Juvelook be used on dry skin?
A. Yes. It manages firmness, fine lines and texture, so it can be considered where dryness appears alongside visible skin ageing.
Do I still need moisturiser after a skin booster?
A. Yes. Moisturising remains necessary: apply it generously after cleansing and keep up UV protection.
Must I have a skin booster in autumn?
A. No. Basic moisturising comes first; a booster is considered where tightness, texture or firmness concerns are not managed by moisturising alone.
📖 References
Select a [number] in the text to jump to the source, and ↩ to return. Only papers whose title, journal and year were verified on PubMed are included.
- Lampridou S, Bassett S, Cavallini M, Christopoulos G. The Effectiveness of Polynucleotides in Esthetic Medicine: A Systematic Review. J Cosmet Dermatol. 2025;24(2):e16721. — Journal of Cosmetic Dermatology 2025 — systematic review of polynucleotides, 9 studies / 219 patients. ↩
- Lee JH, Kim J, Lee YN, et al. The efficacy of intradermal hyaluronic acid filler as a skin quality booster: A prospective, single-center, single-arm pilot study. J Cosmet Dermatol. 2024;23(2):409-416. — Journal of Cosmetic Dermatology 2024 — HA skin booster in 20 patients. ↩
BongBong Plastic Surgery · Dr. Park Seong-Soo, Medical Director
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