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[Dr. Seolreim’s Skin Stories] Is Collagen the Secret to Byeon Woo-seok’s Glowing Skin That Let Him Play a Teen in ‘Lovely Runner’?
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At the Asia Artist Awards (AAA) held in Thailand on the 27th, actor Byeon Woo-seok, 33, demonstrated his popularity by winning six awards: AAA Popularity, AAA Asia Celebrity, Best Artist, Best Couple, Best OST, and Actor of the Year.

Byeon Woo-seok attracted attention for convincingly wearing a school uniform while playing an 18-year-old high-school student in ‘Lovely Runner,’ despite being in his 30s. He previously said that, while preparing for the drama’s high-school scenes, he regularly visited a dermatology clinic and took collagen.

Even popular actors take collagen. But can oral collagen be expected to improve skin?

Collagen is a protein that plays an important role in supporting not just the skin but many body tissues. It is generally said to decline gradually after age 25. As collagen decreases, skin loses firmness and wrinkles develop. If you want healthy, firm skin, therefore, you need to pay attention to its collagen.

However, taking collagen orally is unlikely to directly generate collagen. Because collagen consists of multiple linked amino acids, it is not absorbed into the body intact.

To promote collagen production and healthy skin, it is therefore preferable to use collagen injections delivered directly to the dermis rather than oral or topical forms. Examples include Baby Collagen Injections, Radiesse, and Rejuran Healer.

Collagen injections may promote collagen production, improve texture, and enhance overall skin condition. However, duration, post-treatment foreign-body sensation, and side effects differ by procedure, making a thorough professional consultation important before deciding.



Engaging Skin Stories for Healthy Skin

Drawing on the skin-treatment expertise gained over 15 years of running SEOLREIM CLINIC in Gangnam, I explain everyday skincare and engaging dermatology stories inspired by actors, celebrities, and television in an accessible, friendly way. Through professional knowledge and experience, I hope to help your skin look healthier and more radiant. May this series broaden your understanding of skin and help you discover ways to care for yourself.

— Dr. Seolreim, Dr. Jungha Kang —
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SEOLREIM NAD+ Advanced Cellular Renewal IV
✨ Global Wellness Trend

NAD+ Advanced
Cellular Renewal IV

Restore · Renew · Revitalize

From Hollywood Stars to Harvard Researchers,
A Next-Generation Anti-Aging Solution in the Global Spotlight

Learn More

Captivating the World
The NAD+ Boom

From Hollywood celebrities and professional athletes to Silicon Valley CEOs—
NAD+ IV is already a key term in global wellness.

$5.1B
Global NAD+ Market Size
The NAD+ IV clinic market is projected to grow 10.8% annually, reaching approximately USD 1 billion by 2032.
400%
Increase in Blood NAD+ Levels
In a clinical study, plasma NAD+ levels rose approximately fourfold from baseline six hours after administration of 750 mg of NAD+ intravenously.
200+
Number of Related Research Papers
Leading universities, including Harvard and MIT, are actively researching NAD+ effects on aging and cellular regeneration.

Celebrities Talk About NAD+

World-renowned celebrities are including NAD+ IV in their wellness routines.

💄

Hailey Bieber & Kendall Jenner

Model · Beauty Entrepreneur

A reality show drew attention when they appeared receiving NAD+ IV side by side. Hailey Bieber said, ‘I’m going to NAD for the rest of my life, and I’m never going to age.’

🎙️

Joe Rogan

Podcaster · Commentator

He regularly receives weekly NAD+ IV and vitamin infusions and shared on his podcast that he finds them helpful for energy, cognitive function, and immunity.

🌿

Gwyneth Paltrow

Actress · Goop Founder

She actively introduced NAD+ through her wellness brand Goop, drawing attention to it as a key element of modern wellness.

Jennifer Aniston

Actress

Known as an early adopter of NAD+ IV therapy, this celebrity helped draw significant mainstream-media attention.

🔬

NAD+ Research at Harvard University

David Sinclair, Ph.D. · Harvard Medical School

Dr. David Sinclair, professor of genetics at Harvard Medical School, was the first researcher to identify a key role for NAD+ synthesis in lifespan regulation. The author of more than 200 papers and the bestselling ‘Lifespan,’ he leads global longevity science with research findings suggesting that epigenetic reprogramming can reverse aging.

NAD+, in Simple Terms
Your Cells’ ‘Battery Charger’

Just as a smartphone slows when its battery runs low, insufficient cellular energy can leave skin dull, fatigue accumulating, and concentration declining.

NAD+ is essential for cells to produce energy. The problem is that it decreases each year after your 20s. By your 40s, levels fall to about half those in your 20s.

💡 NAD+ IV therapy directly replenishes declining NAD+ through the bloodstream. It reaches cells faster than supplements, with 100% absorption.
NAD⁺COENZYME

Changes you can experience

These are the three changes most commonly reported by people who have received NAD+ IV therapy.
01

‘My mornings feel different.’

It is like adding fuel directly to the cells’ power plants—the mitochondria. You may notice less chronic fatigue and energy that lasts throughout the day.

Energy Recovery
🧬
02

‘People say my skin looks brighter.’

It activates longevity-associated sirtuins that repair damaged DNA, slowing aging at the cellular level. This helps improve skin tone and firmness.

Anti-aging
🧠
03

‘My mind feels clearer.’

Brain cells need NAD+ too. Many people report better concentration and a feeling that their brain fog has lifted after treatment.

Mental Clarity

Exclusive to SEOLREIM
3 Step NAD+ Therapy

Infusion-rate control matters with NAD+ IV. SEOLREIM developed a three-stage protocol for safe, comfortable treatment.

1
Step 01

Prepare Your Body

Pre-Treatment

We first support internal balance with antioxidants to help NAD+ absorption. Like stretching before exercise, this stage prepares cells to receive NAD+.

Yellow Solution
2
Step 02

Replenish NAD+

NAD+ Treatment

NAD+ is slowly infused intravenously. Because individual responses differ, we adjust the rate and amount in real time for comfort.

Pink Solution
3
Step 03

Finishing Care

Post-Treatment

This final stage addresses oxidative stress that may arise as NAD+ becomes active in the body. It helps prolong the treatment’s effects.

Blue Solution

Who We Recommend It For

Do Any of These Sound Familiar?
😴

People Who Feel Tired No Matter How Much They Sleep

Those whose chronic fatigue interferes with daily life

🪞

People Concerned About Dull Skin

Those who feel their skin tone and firmness are not what they used to be

🎯

People Struggling to Think Clearly

Those whose productivity is affected by brain fog or reduced concentration

🔋

People Seeking Recovery from Burnout

Those needing a quick reset after severe stress or burnout

Frequently asked questions

These are the questions most often asked by people new to NAD+ IV.

SEOLREIM’s three-step protocol takes approximately 1–2 hours in total. You can relax in a comfortable recliner and read or watch videos during treatment.

NAD+ infusion can temporarily cause chest tightness or a tingling sensation. SEOLREIM adjusts the rate to your individual response, so most people remain comfortable.

Many people experience renewed energy and a clearer feeling immediately after their first treatment or within 1–2 days. A professional consultation will determine an individualized treatment schedule for continued benefits.

Oral supplements such as NMN and NR pass through digestion, limiting absorption. NAD+ IV delivers directly into the bloodstream, offering nearly 100% bioavailability and the potential for fast, reliable effects.

Most clinics administer NAD+ alone. SEOLREIM first optimizes absorption conditions with antioxidant balancing (Yellow), then provides post-treatment oxidative-stress care (Blue). This exclusive protocol is designed to enhance benefits and reduce side effects.

Your Personal NAD+ Plan
Starts with a Consultation

Through a professional consultation,
we design the optimal NAD+ program for your individual condition.

Online Consultation