Karisma vs Rejuran are the two skin boosters most recommended by aesthetic doctors today, yet their mechanisms of action are entirely different — one stimulates collagen production, the other regenerates the skin foundation using polynucleotide. If you’re unsure which one is right for your skin, this article will help you make the right decision.
So how are Karisma and Rejuran different? Which is the right choice for your skin condition and rejuvenation goals? Let Mayu Spa walk you through the details in the article below.

Overview of Karisma and Rejuran
What Is Karisma?
Karisma is a next-generation skin booster from Italy, distinguished by its proprietary Recombinant Human Collagen (Rh-Collagen) ingredient. This is a biological collagen with a structure identical to the natural collagen found in the human body, helping to stimulate endogenous collagen production and comprehensively improve skin quality.
More than just a hydrating product, Karisma focuses on rebuilding the collagen network beneath the skin, thereby helping to:
- Improve elasticity and firmness
- Fill in fine wrinkles
- Increase natural radiance and glow
- Enhance skin foundation quality
Thanks to its ability to stimulate regeneration from within, Karisma is considered an ideal choice for those who want youthful, firm, and radiant skin over time.
Learn more about the Karisma treatment at Mayu Spa

What Is Rejuran?
Rejuran is a well-known skin booster from South Korea, containing Polynucleotide extracted and purified from salmon DNA.
Unlike Karisma, which focuses on collagen, Rejuran works through a mechanism of restoring and regenerating damaged skin tissue. The Polynucleotide ingredient helps accelerate cell repair, increases the skin’s natural recovery ability, and reinforces the skin barrier.
The standout benefits of Rejuran include:
- Supporting recovery of damaged skin
- Reducing inflammation and increasing skin resistance
- Improving sensitive, weak skin
- Helping to fade shallow acne scars
- Increasing skin thickness and overall health
This is the treatment prioritized by many dermatologists for skin that needs intensive reconstruction and recovery.
Learn more about the Rejuran treatment at Mayu Spa

How Are Karisma and Rejuran Different?
Although both are categorized as next-generation skin boosters, Karisma and Rejuran have entirely different core ingredients, mechanisms of action, and treatment objectives. While Karisma focuses on stimulating collagen production to improve firmness and deliver naturally taut skin, Rejuran aims to restore, regenerate, and reinforce skin foundation health from within.
To help you easily visualize the differences between the two therapies, see the detailed comparison table below:
| Criteria | Karisma | Rejuran |
|---|---|---|
| Key ingredient | Recombinant Rh-Collagen | Polynucleotide |
| Mechanism of action | Stimulates collagen production | Regenerates and restores skin cells |
| Treatment objective | Rejuvenation, firmness, radiant glow | Restoration of damaged skin foundation |
| Effect on skin | Naturally firm and smooth skin | Healthier, more even-toned skin |
| Radiance level | High | Moderate |
| Recovery capacity | Good | Very good |
| Suitability for sensitive skin | Suitable | Very suitable |
| Pain level | Mild | Moderate |
| Downtime | Low | Possible swelling and redness for a few days |
| Duration of results | Approximately 6–12 months | Approximately 6–9 months |
From the comparison table, it is clear that Karisma and Rejuran are not competing or interchangeable methods. Each therapy has been developed to address the skin’s own specific needs. The choice of method will depend on the current skin condition, improvement goals, and the treatment protocol prescribed by the doctor. In many cases, Karisma and Rejuran can even be combined to deliver more comprehensive rejuvenation and skin restoration results.

Who Is Karisma Suitable For?
Karisma is especially suitable for people who:
- Are beginning to show early signs of skin aging
- Lack elasticity and firmness
- Want to improve fine wrinkles
- Love naturally radiant, glowing skin in the Korean beauty style
- Want to rejuvenate their skin without altering their facial contours
Thanks to its Recombinant Rh-Collagen technology, Karisma helps stimulate endogenous collagen production, improve skin foundation quality, and deliver a natural glow skin effect over time.
Who Is Rejuran Suitable For?
Rejuran is especially suitable for people who:
- Have weak, sensitive, or easily irritated skin
- Have skin that needs recovery after treatments such as laser, skin peeling, or fractional RF
- Want to improve shallow acne scars and rough skin texture
- Want to reinforce the skin barrier and improve overall skin health from within
- Prioritize long-term skin foundation recovery and reconstruction rather than just an immediate radiant effect
With its Polynucleotide ingredient, Rejuran helps accelerate cell regeneration, restore damaged skin tissue, and build a healthier skin foundation over time.

Should You Choose Karisma or Rejuran?
The important thing is not which of Karisma or Rejuran is better, but which therapy best suits the current needs of your skin.
Skin that lacks collagen will require a different treatment strategy than skin that is weakening or needs recovery after aesthetic treatments. Understanding your improvement goals will help you choose the right treatment course and achieve optimal results in your skin rejuvenation journey.
Choose Karisma If You Want Rejuvenation and Improved Firmness
Karisma is the right choice for skin that is beginning to show signs of aging, lacks elasticity, or is losing firmness. With its Recombinant Rh-Collagen technology, the treatment helps stimulate endogenous collagen production, supports improvement of fine wrinkles, enhances elasticity, and delivers naturally taut and glowing skin. This is the solution favored by many clients who want youthful, radiant skin while maintaining their natural appearance.
Choose Rejuran If You Want to Restore and Rebuild the Skin Foundation
For weak, sensitive skin or skin that has been damaged by aesthetic treatments, Rejuran is typically the preferred choice. The Polynucleotide ingredient helps accelerate cell regeneration, reinforce the skin barrier, and enhance skin health from within. This is the right solution for those who want to build a healthy, stable, and resilient skin foundation before undergoing intensive rejuvenation treatments.
To choose the right treatment, clients should be examined and assessed directly by a doctor or dermatologist. Based on the actual skin condition, the doctor will build a personalized protocol to deliver the most optimal and sustainable results.
Can Karisma and Rejuran Be Combined?
Modern skin rejuvenation trends are no longer focused on a single active ingredient but instead lean toward multi-layered treatment protocols that address multiple skin concerns simultaneously. Among these, the combination of Karisma and Rejuran is highly regarded by many doctors for their ability to complement each other.
A Comprehensive Combined Protocol of Restoration and Rejuvenation
If Rejuran plays the role of reconstructing and reinforcing the skin foundation from within, Karisma focuses on stimulating collagen production, improving firmness, and delivering a naturally radiant effect. This combination helps skin not only become healthier but also more youthful and luminous over time.
Layer Treatment
In many cases, the doctor may choose to use Rejuran first to restore the skin foundation, especially for weak or sensitive skin.
Once the skin barrier has been improved, Karisma is then introduced into the protocol to accelerate the rejuvenation process, enhance collagen quality, and increase skin elasticity.
This multi-layered treatment strategy is now widely applied at many modern clinics and aesthetic centers.
Personalized for Each Skin Type
No single protocol suits everyone. Optimal treatment results are only achieved when a doctor accurately assesses the skin condition and builds a personalized treatment plan for each client. Depending on age, degree of aging, sensitivity, and treatment goals, the ratio of Karisma and Rejuran in the combination will be adjusted accordingly to deliver the most natural, safe, and sustainable results.
How Big Is the Price Difference Between Karisma and Rejuran?
In addition to treatment effectiveness, cost is one of the factors that many clients consider when choosing between Karisma and Rejuran. However, the actual price depends not only on the product used but also on the skin condition, treatment protocol, and number of sessions prescribed by the doctor.
| Criteria | Karisma | Rejuran |
|---|---|---|
| Reference price | From 8–15 million VND/session | From 7–15 million VND/session |
| Recommended sessions | 2–3 sessions | 3–4 sessions |
| Maintenance | Every 6–12 months | Every 6–9 months |
| Key benefits | Skin rejuvenation, improved firmness, reduced wrinkles | Recovery of damaged skin, improved sensitive skin, fading of acne scars |
From the comparison table, it is clear that the price difference between Karisma and Rejuran is not significant. However, the total treatment cost may vary depending on the number of sessions, improvement goals, and the personalized protocol for each client.

Things to Consider When Choosing a Skin Booster Clinic
Skin boosters are a beauty method that directly affects the skin, so treatment effectiveness depends not only on the product but also on the doctor’s skill and the appropriate treatment protocol. To ensure safety and achieve the desired results, clients should carefully consider the following factors:
Medical Team and Expertise
A good product can only deliver its full potential when performed with the correct technique.
A qualified doctor will accurately assess the skin condition, choose the appropriate injection sites, and build a personalized treatment protocol. This not only helps optimize rejuvenation results but also minimizes any unwanted risks during treatment.
Genuine Products with Transparent Origins
The market today contains many unverified or origin-unknown products advertised at attractive prices.
When choosing an aesthetic facility, clients should prioritize those that use genuine products with labels, origin documentation, and are transparent about their products before treatment.
A Protocol Personalized to Your Skin Condition
Every skin type has its own unique needs and characteristics. An effective treatment is not one that is applied to the masses — it is one designed specifically for you.
Through an in-depth consultation process, the doctor will accurately identify the skin condition, degree of aging, and treatment goals to propose the most suitable solution, helping to enhance effectiveness and maintain results long-term.
Don’t Let Price Be the Only Deciding Factor
Cost is always a factor that many clients consider. However, services priced significantly below market rate often carry hidden risks regarding product quality, procedure standards, or the practitioner’s expertise.
Rather than choosing based on price alone, prioritize reputable facilities with experienced doctors and a commitment to using genuine products. This is the deciding factor for the safety and long-term effectiveness of your skin.
A successful skin booster treatment does not simply deliver better-looking skin in the present — it also contributes to maintaining skin health in the future. Therefore, choosing the right treatment facility is always the first and most important step on the journey to safe skin rejuvenation.
Conclusion: Is Karisma or Rejuran Better?
Karisma and Rejuran are both highly regarded skin booster therapies in the field of skin rejuvenation, but each method targets different treatment objectives. While Karisma stands out for its ability to stimulate collagen production, improve firmness, and deliver naturally radiant skin, Rejuran is favored for its ability to restore, regenerate, and reinforce a healthy skin foundation from within.
Therefore, the important question is not whether Karisma or Rejuran is better, but which therapy suits your current skin condition and needs. When correctly prescribed, both can deliver noticeable and sustainable skin improvement results over time.
Quick Summary — Karisma or Rejuran?
- Choose Karisma if: Skin is aging, losing firmness, and you want to stimulate natural collagen production
- Choose Rejuran if: Skin is sensitive, damaged, has acne scars, and you want to restore skin health from within
- Combine both: A comprehensive protocol for skin that needs both restoration and rejuvenation — suitable for skin with multiple concerns
Frequently Asked Questions (FAQ)
Does Karisma injection hurt?
Karisma uses ultra-fine needles, causing very little discomfort. The doctor may apply a topical numbing cream before injection to ensure maximum comfort.
Does Rejuran have side effects?
Rejuran has a high safety profile with few side effects. Some people may experience mild swelling at the injection site during the first 1–2 days, which will subside on its own.
Can Karisma and Rejuran be injected in the same session?
Yes, they can, but the doctor needs to assess the skin condition first. Combining them in the right protocol helps optimize results and shorten recovery time.

At Mayu Spa, clients receive an in-depth skin assessment and evaluation before treatment. Based on skin foundation quality, degree of aging, and improvement goals, the doctor will build a personalized protocol to optimize rejuvenation and skin restoration results.
If you are unsure whether to choose Karisma or Rejuran, contact Mayu Spa to consult with a doctor and choose the treatment that best suits your skin.



