Rejuran vs. Hydration Injections: Skin Regeneration or Moisture Improvement—Which Suits You?

Rejuran, Rejuran benefits, Rejuran side effects, Rejuran intervals, skin boosters, Gangnam dermatology clinic

Rejuran is a skin booster that injects PN (polynucleotides) into the skin. Rather than adding volume like a filler, it aims to improve skin condition and the environment for recovery.

Improvements in texture, fine lines, dryness, and reduced firmness may be expected. However, it does not directly lift deep wrinkles or sagging, or remove scars in one session. Research findings and perceived results vary among individuals.

People with thin, dry skin, fine lines, or rough texture may consider consultation. Active inflammation or infection should be treated first.

After consultation and skin assessment, anesthesia, disinfection, and injection follow. Redness, raised bumps, bruising, and tenderness may occur immediately afterward. Recovery varies by area and individual.

Pain, swelling, bruising, and redness are common possibilities. Seek immediate care for worsening pain, skin-color changes, blisters, heat, or pus. Disclose pregnancy or breastfeeding, skin infection, medications that increase bleeding risk, and ingredient allergies beforehand.

Rejuran focuses on PN-based improvement of the skin environment; hydration injections mainly use hyaluronic acid for moisture and texture; fillers primarily restore volume and contours in specific areas. Even within skin boosters, ingredients and purposes differ.

Recurring questions include: ‘Does no bump mean no effect?’, ‘Can I work the next day?’, ‘Can Rejuran be injected under the eyes?’, ‘Is one session enough?’, and ‘Does more pain mean better results?’ Bumps alone cannot determine effectiveness. Recovery and results vary, so confirm the injection areas and product with your clinician.

Q. Is one session enough? A. Response can be assessed after one session, but the number and interval depend on the product, skin condition, and goal. Q. Can it be combined with hydration injections? A. Combination may be possible, but same-day treatment and sequence are determined after examination. Q. Can topical products replace it? A. Moisturizers and injections have different delivery methods and cannot be considered equivalent.

References include an expert consensus on PN (PubMed PMID 32799391), a systematic review of hyaluronic acid injection safety and adverse events (PubMed PMID 30636365), and an international consensus on cosmetic injection complications (PubMed PMID 27219265). Research varies by product and injection method and does not guarantee individual results.

Author: SEOLREIM Content Editor / Medical Review: SEOLREIM CLINIC Medical Team / Published: September 19, 2026 / Updated: September 19, 2026

SEOLREIM CLINIC discusses Rejuran and hydration injections according to actual ingredients and skin concerns, not names alone. Shining Rejuran or Royal Rejuran may be considered for thin skin, fine lines, rough texture, and reduced firmness; Super Miracle Hydration Injections may suit moisture deficiency, uneven makeup, and surface dryness. When needed, we plan the sequence and intervals and possible combinations with lifting or pore care according to skin condition and recovery time.

SEOLREIM CLINIC has provided dermatologic and aesthetic care in Gangnam, Seoul since 2011. Doctors personally consult and treat patients, developing plans for individual skin conditions. Effects and recovery vary, so final decisions follow an in-person assessment.