Rejuran Recovery: Bumps, Swelling and Aftercare

Rejuran is often described as a low-downtime treatment, and for most people it is. However, the first day or two can look surprising if you are not prepared: a grid of small raised bumps across the face, some redness and perhaps a few tiny bruises. Knowing what is normal, how long it lasts and how to care for the skin makes recovery much easier, particularly if you are fitting treatment into a trip to Korea.

This guide explains why bumps form after Rejuran, gives a typical recovery timeline, and sets out practical aftercare and warning signs.

Why Rejuran causes bumps

Rejuran is injected superficially into the skin, usually in many small deposits across the treatment area. Each deposit lifts the skin slightly, creating a small raised bump, often compared to a mosquito bite. The product contains polynucleotides in a gel that takes some time to spread and integrate into the tissue, so the bumps remain visible for a while after treatment.

How noticeable the bumps are depends on several factors: the injection technique (manual injections generally produce more defined bumps than some devices), the amount of product used, the formulation and individual skin thickness. Thin or sensitive skin may show bumps and redness more clearly.

Typical recovery timeline

• Immediately after: visible raised bumps, redness and pinpoint marks at injection sites. The skin may feel tight or slightly tender.
• First few hours: bumps start to soften as the product begins to spread. Redness often fades considerably by the evening.
• Day 1: most bumps are much flatter. Some faint unevenness may remain, especially in thinner areas.
• Days 2 to 3: for most people, bumps have largely resolved and the skin looks normal or slightly glowing.
• Up to 1 week: any small bruises gradually fade, moving from purple to yellow.

This timeline varies. Some patients look almost normal the same evening, while others with more sensitive skin or more product may see bumps for a little longer. Under-eye treatments tend to bruise and swell more than the cheeks.

Swelling and bruising

Mild swelling is common for the first day, particularly around the eyes and in the morning after treatment. Bruising occurs when a needle passes through a small blood vessel. It is more likely if you take blood-thinning medications or supplements such as fish oil, ginkgo, vitamin E or high-dose aspirin, or if you drink alcohol around the time of treatment. Always check with your prescribing doctor before stopping any medication.

Cool compresses, wrapped in a clean cloth and applied gently, may help with swelling in the first day. Avoid pressing hard on the treated area.

Aftercare: what to do

• Keep the skin clean and use a gentle, fragrance-free cleanser from the evening or next morning, as advised.
• Apply a simple, soothing moisturiser to support the skin barrier.
• Use a broad-spectrum sunscreen daily and avoid prolonged sun exposure.
• Sleep on your back with your head slightly raised on the first night if swelling is a concern.
• Follow any specific instructions your clinic gives you in writing.

Aftercare: what to avoid

• Rubbing or massaging: avoid pressing on the bumps or using facial massage tools for at least a day.
• Makeup: many clinics advise waiting until the next day so that injection points can close.
• Heat: skip saunas, jjimjilbang, hot baths and intense exercise for one to two days.
• Alcohol: may worsen swelling and bruising; avoid it for at least the first day.
• Active skincare: pause retinoids, exfoliating acids and harsh products for a few days.
• Other treatments: avoid facials or new procedures on the same area unless they were planned together by your doctor.

Reducing bumps and bruising next time

If you found recovery harder than expected, there are several things to discuss with your doctor before the next session. Some formulations, such as those combined with hyaluronic acid, and some injection devices may produce less pronounced bumps for certain patients. Adjusting the amount per injection point or using a cannula in bruise-prone areas can also help. Avoiding alcohol and, where medically appropriate, supplements that thin the blood for a few days beforehand may reduce bruising.

Timing matters too. Many patients prefer to have Rejuran in the late afternoon or evening, so that the most visible bumps settle overnight, and to avoid scheduling it immediately before a work event, wedding or flight. Keeping a note of how your skin reacted each time makes it easier to plan future sessions around your calendar.

When to contact your doctor

Most reactions after Rejuran are mild and short-lived. Contact your clinic if you notice bumps that become larger, hard, painful or red several days after treatment, increasing pain, warmth or spreading redness, pus or fever, significant swelling around the eyes or lips, hives, itching or difficulty breathing, which require urgent medical attention, or lumps that persist for weeks. Early assessment allows problems such as infection or inflammatory reactions to be treated promptly.

Planning recovery around travel

For visitors to Korea, Rejuran is relatively easy to schedule, but it is wise to leave at least one or two clear days before important events or photographs, and longer if under-eye treatment is planned. If you are combining Rejuran with lasers or RF microneedling, follow the order and spacing your doctor recommends, as combined treatments can extend downtime. Most people are comfortable flying within a day or two, but ask your doctor for personal advice and keep their contact details in case you have questions after returning home.

Conclusion

Bumps, mild redness and occasional bruising are a normal part of Rejuran recovery and usually resolve within one to three days, with bruises fading within about a week. Gentle care, avoiding heat and pressure, and protecting the skin from the sun all support a smooth recovery. Knowing what to expect, and when to seek advice, makes it easier to enjoy the gradual skin-quality benefits Rejuran is known for.

This article is for general information only and is not a substitute for a medical consultation. Suitability, results and recovery vary from person to person.