Skin Boosters
Rejuran, Juvelook and others: ingredients, bumps, sessions, pairing with lifting.
8 questions
Q25. What is a skin booster?
A skin booster is an injectable made from various biological materials and used with the aim of improving signs of skin aging such as dullness, dryness and loss of firmness. Characteristics and reactions differ by ingredient, such as hyaluronic acid (HA), polynucleotide (PN), biodegradable polymers and autologous materials. Temporary reactions such as redness, swelling and small bumps are common, and vascular complications occur rarely, so side effects and individual differences should be reviewed along with the expected effects.
Read more: What is a skin booster?Q26. What kind of skin booster is Rejuran?
Rejuran is a polynucleotide (PN) skin booster made by PharmaResearch Co., Ltd., approved in Korea by the Ministry of Food and Drug Safety (MFDS) as a tissue-repair biomaterial (Class 4 medical device). PN consists of DNA chains obtained from salmon and trout gonads and is described as having high viscoelasticity and water-binding capacity. Small bumps, redness and swelling are common after treatment, and bruising or vascular complications can occur rarely, so these should be reviewed together with individual differences.
Read more: What kind of skin booster is Rejuran?Q27. What is Juvelook and how does the treatment work?
Juvelook is a combination of PDLLA (poly-D,L-lactic acid) and hyaluronic acid (HA) made by Vaim Co., Ltd., approved in Korea by the MFDS as a tissue-repair material (Class 4 medical device). The manufacturer usually recommends 3 sessions and states intervals of about 6 weeks for Juvelook and about 8 weeks for Juvelook Volume. Redness, swelling, tenderness and bruising can occur, and PLA-based products can cause nodules or longer-lasting bumps, so these should be reviewed together with individual differences.
Read more: What is Juvelook and how does the treatment work?Q28. How do I choose between the different types of skin boosters?
The type of skin booster is chosen by considering the skin concerns you want to address, the properties and recovery pattern of each ingredient, and how many times and when you can visit. Hyaluronic acid (HA), polynucleotide (PN) and biodegradable polymers such as PDLLA differ in their known properties and in the pattern of bumps they leave. Even with the same product, responses and side effects vary between individuals, so it is advisable to decide after a skin assessment and consultation.
Read more: How do I choose between the different types of skin boosters?Q29. How long do bumps and swelling last after a skin booster?
According to CELITA Clinic's guidance, the temporary bumps that appear after a skin booster usually settle within 1-3 days. Mild redness and swelling usually appear for a few hours after treatment, and occasional bruising can last longer. The course differs by ingredient and individual, and PLA-based products can cause longer-lasting bumps, so check the instructions for the product you received.
Read more: How long do bumps and swelling last after a skin booster?Q30. How many skin booster sessions do I need, and how far apart?
Skin boosters are usually given as a series of repeat sessions rather than once, and the number of sessions and intervals differ by product. The Juvelook manufacturer usually recommends 3 sessions about 6 weeks apart (about 8 weeks for Juvelook Volume), while for PN there is a study of 4 sessions at 2-week intervals and a European consensus suggesting 3 sessions at 3-week intervals. Results and how long they last vary between individuals, so the plan is decided at consultation based on your skin condition and when you can visit.
Read more: How many skin booster sessions do I need, and how far apart?Q31. How do the different skin booster injection methods compare?
Skin booster injection methods are described in three groups: manual injection, placed shallowly by hand with a fine needle; automated injectors, which hold the skin with suction and inject through multiple needles; and jet injectors, which deliver the product into the skin without a needle. Each method differs in control over injection points, the treatment process and limits on depth, so the method is chosen to suit the product's ingredients, the area and skin condition. With any method, temporary reactions such as redness, swelling and bruising can occur, and these vary between individuals.
Read more: How do the different skin booster injection methods compare?Q32. Can I get a skin booster and a lifting treatment together?
A skin booster and lifting can be planned together, but which combination to use and in what order and interval differ by treatment and are decided individually at consultation. Lifting devices deliver heat energy to the tissue beneath the skin, while skin boosters are injectables that address skin changes such as dullness, dryness and loss of firmness, so their purposes differ. Both can cause reactions such as swelling, redness and bruising, which vary between individuals, so recovery time and your schedule are also taken into account.
Read more: Can I get a skin booster and a lifting treatment together?