The Squid Game Effect: Why K-Drama Actors Have Glass Skin at 40 — And the Korean Clinic Protocols Behind It

Key Takeaways

• Lee Byung-hun, the Frontman in Squid Game across all three seasons, was born in 1970. He is 55 years old. His skin on screen looks closer to mid-thirties. This is not genetics alone — it is decades of disciplined Korean skin practice made visible.
• The K-drama ageless aesthetic is produced by six pillars: lifetime SPF discipline, barrier-first skincare, regular clinical maintenance, collagen-supportive diet, glycation prevention, and the progressive philosophy of Korean aesthetic medicine that builds cumulative results over years.
• The single most important anti-ageing intervention available to Indian skin in Mumbai is the same one it has always been: daily SPF50, applied consistently, starting now. Every day of unprotected UV exposure in Mumbai is a day of collagen degradation that cannot be reclaimed.
• PDRN and polynucleotide boosters address the structural ageing that begins in the thirties — stimulating the skin’s own collagen production at the point when natural synthesis begins to decline.
• Indian skin approaching 40 has a natural advantage: higher melanin content provides UV protection that lighter skin lacks. The ageing challenges specific to Indian skin — PIH accumulation, urban pollution damage, barrier disruption — are directly addressed by Korean anti-ageing protocols.
• The best time to start a Korean anti-ageing programme was your twenties. The second best time is now.

Squid Game Season 3 arrived on Netflix on June 27, 2025 — and within hours of its release, India’s K-drama community was doing two things simultaneously: processing the series finale’s emotional weight, and asking the same question that appears every time a K-drama cast assembles on screen.

How do they look like that?

The specific trigger this time was Lee Byung-hun. The actor who plays the Frontman — Hwang In-ho — across all three seasons of Squid Game was born on July 12, 1970. He was 55 years old when Season 3 premiered. His skin in the series, under studio lighting and in the press appearances that followed, looked remarkably clear, firm, and luminous. Fan pages noted it. Entertainment publications noted it. The Tab ran a piece ranking the cast by whose “skincare secrets we need the most” — and Lee Byung-hun appeared near the top with the observation that he “simply refuses to age.”

Lee Jung-jae, who plays Gi-hun across all 22 episodes of the complete series, is 52. The full cast assembled for Squid Game’s finale included actors across a range of ages — and across that range, the consistent quality of the skin was the same consistent quality that Indian K-drama audiences have been asking about since Crash Landing on You, since Goblin, since My Love from the Star.

As a dermatologist who works specifically with Korean skin protocols, I find this question one of the most clinically interesting I am regularly asked. The answer is not simple, and it is not genetics. It is a philosophy of skin care that begins early, maintains consistently, and compounds across decades. This blog is the full explanation — and the practical guide to what Indian skin in its thirties and forties can actually do with it.

The Six Pillars of the Korean Ageless Aesthetic — Explained Clinically

Pillar 1: Lifetime SPF Discipline — The Single Greatest Anti-Ageing Investment

This is the most important point in this entire blog and the one I will not rush past: the most significant difference between Korean actors’ skin at 55 and the equivalent skin of most Indian professionals at 40 is accumulated UV damage — and the difference is primarily explained by SPF culture.

Korea has one of the world’s most deeply embedded sun protection cultures. SPF is applied as the final step of every morning routine, from teenage years onward, regardless of weather or season. It is reapplied during the day. Korean cosmetics are formulated with UV protection as a standard feature. The SPF habit is not cosmetic — it is cultural, and it begins decades before the signs of UV ageing become visible.

The science is not subtle. Some analyses estimate that up to 80–90% of visible skin ageing originates from UV exposure — not the passage of time. UV-B radiation degrades collagen and elastin fibres, triggers chronic melanocyte activity that produces pigmentation, and generates the oxidative stress that slows cellular renewal. These effects are cumulative and largely irreversible once established. A 55-year-old Korean actor who has applied SPF50 daily since his twenties has prevented thirty-plus years of this accumulation. The visible difference is not the miracle of Korean genetics — it is the compound interest of UV protection over decades.

For Indian skin in Mumbai — where UV intensity is year-round, where cloud cover provides false confidence, and where SPF is still too often worn only in summer or only by women — this pillar is the most urgent translation. Not for vanity. For biology. Every day of unprotected UV exposure in this city is a day of collagen degradation that no treatment can fully reclaim.

Pillar 2: Barrier-First Skincare Throughout Adulthood

Korean skincare philosophy treats the skin’s barrier — the stratum corneum — as the foundational investment that all other skincare builds on. In practice, this means ceramide-based moisturisers maintained consistently through adulthood, gentle low-pH cleansers that clean without stripping, and the avoidance of the harsh actives and aggressive exfoliants that Western skincare culture sometimes glorifies.

Why does this matter for anti-ageing? Because a compromised barrier produces chronic low-grade inflammation — and chronic low-grade inflammation is one of the primary accelerants of skin ageing. The process is called inflammageing: the slow, subclinical inflammatory state that degrades collagen, accelerates melanocyte activity, and produces the dull, flat quality of skin that has been chronically irritated rather than consistently supported. Thirty years of barrier-first care prevents thirty years of inflammageing. The skin at 55 of someone who has maintained a healthy barrier since their twenties is structurally different — literally different at the cellular level — from the skin of someone who has spent those thirty years using harsh cleansers, aggressive exfoliants, and high-strength actives without barrier support between them.

Pillar 3: Regular Clinical Maintenance — The Professional Layer

Korean actors receive regular aesthetic dermatology treatment as a professional routine. This is the layer that fan-facing skincare content rarely discusses and that is the largest contributor to the visible difference between a Korean actor’s skin at 55 and what most people imagine is possible at that age.

What does regular clinical maintenance involve? At the level that Korean actors and entertainment professionals access:

• PDRN and polynucleotide boosters on a maintenance schedule — typically quarterly — to continuously stimulate fibroblast activity, maintain collagen and elastin production, and reduce the chronic inflammation that urban and professional life creates.
• Hyaluronic acid skin booster injections — restoring the deep dermal hydration that gives younger skin its taut, plump quality and that naturally depletes from the late thirties onward.
• Korean glass skin treatments before major filming or public appearances — maintaining surface luminosity and barrier health at the level that cameras demand.
• Korean-calibrated peels on a regular cycle — maintaining the skin’s cellular renewal rate and preventing the accumulation of surface dullness, texture, and pigmentation that compounds over years.

The cumulative effect of this maintenance over ten, fifteen, twenty years is a skin that is genuinely biologically younger — not cosmetically masked — than the same skin would be without it. Lee Byung-hun’s skin at 55 is the result of progressive clinical investment over decades. It cannot be replicated in three sessions. It can be begun in three sessions — and the skin you have at 65 is directly shaped by the programme you start now.

Pillar 4: Collagen-Supportive Diet

The traditional Korean diet is high in several categories of food that directly support skin structure: fermented foods (kimchi, doenjang, gochujang) that contain probiotics and have documented anti-inflammatory effects; fish and seafood that provide omega-3 fatty acids which support skin barrier lipid composition; collagen-rich broths and soups consumed as daily staples; and a relatively low intake of the refined sugars that drive glycation — the bonding of glucose to collagen fibres that produces the yellowing, stiffening, and loss of elasticity that makes skin appear old.

This dietary pillar is the hardest to transplant directly into an Indian lifestyle — and I do not suggest replacing Indian dietary culture wholesale. But the principles apply: reduce refined sugar intake, increase omega-3 rich foods, consider collagen peptide supplementation if diet is limited, and maintain the hydration that supports every cellular process the skin performs. The Korean actor who is consuming anti-inflammatory, collagen-supportive food daily is investing in their skin at the same biological level as any topical treatment.

Pillar 5: The Korean Anti-Ageing Philosophy — Progressive, Not Dramatic

Perhaps the most important structural difference between Korean aesthetic medicine and the Western dramatic intervention model is the philosophy of progression over time versus correction after significant deterioration. Korean aesthetic medicine invests in maintaining skin quality throughout adulthood — beginning in the late twenties or thirties, before the visible signs of ageing have accumulated into concerns that require correction. The result is a skin that never reaches the point of dramatic deterioration, because it has been continuously supported and renewed rather than neglected and then corrected.

This is clinically significant for Indian patients in their thirties and forties who arrive at Glam having done nothing for their skin in a clinical sense and asking what can be done. The answer is always: a great deal. But the skin of a 45-year-old who began a Korean maintenance programme at 35 is in a fundamentally better position than the skin of a 45-year-old who is beginning now. The gap between those two is not unbridgeable — but it is real, and it is the gap that Lee Byung-hun’s skin represents.

Pillar 6: Quality Sleep, Managed Stress, Consistent Exercise

Korean actors — and the Korean entertainment industry broadly — operate at a demanding pace, which makes their skin quality more impressive rather than less. What the best-maintained among them clearly do is protect the biological foundations that skin repair depends on: consistent sleep timing (the skin’s primary repair cycle requires the growth hormone peak that occurs during consistent sleep patterns), stress management through deliberate practice, and regular exercise that maintains the microvascular circulation responsible for skin warmth and vitality. These are not skincare choices. They are lifestyle choices with skin consequences. At Glam, I mention them not to moralize but because understanding what produces the result is the most honest answer to the question.

What Actually Happens to Skin Between 35 and 50 — And What Korean Protocols Address

Between the mid-thirties and mid-forties, four specific changes in skin biology produce the visible signs that we associate with ageing:

Collagen Synthesis Decline

From approximately the late twenties, the skin’s production of Type I collagen — the primary structural protein that gives skin its firmness and bounce — declines at approximately 1% per year. By 40, the skin’s collagen reserves have measurably declined, producing the loss of the taut, firm quality that characterises younger skin. PDRN and polynucleotide boosters directly address this mechanism by stimulating fibroblast activity — the cellular engine of collagen production. A quarterly PDRN programme in the thirties and forties maintains fibroblast stimulation at a rate that counteracts the natural decline, keeping the skin’s structural quality significantly ahead of its chronological age.

Hyaluronic Acid Depletion

The skin’s own hyaluronic acid production declines from the mid-twenties. By 40, the deep dermal hydration that gives younger skin its plump, luminous quality has reduced measurably. The visible consequence — hollowing under the eyes, loss of volume in the mid-face, the flattened quality of skin that was once rounded — is driven by this HA depletion as much as by any other ageing process. Hyaluronic acid skin booster injections restore this deep structural hydration without altering facial structure, producing the hydrated, plump quality associated with youth without the unnaturalness of heavy fillers.

Melanin Accumulation

Decades of UV exposure in Mumbai’s climate — even modest daily UV without SPF — accumulates as uneven pigmentation: the darker, irregular tone that makes skin look older than its structural quality would suggest. Regular Korean-calibrated peels and pico laser protocols maintain pigmentation evenness throughout this decade, preventing the accumulation that makes skin look aged when the underlying structure is still relatively good.

Microcirculation Decline

The microvascular circulation that gives skin its warmth and vitality reduces with age and with the cumulative inflammatory burden of urban life. The grey, flat, tired quality of skin in mid-life is substantially explained by this microcirculation decline — and PDRN’s documented mechanism of improving microvascular blood flow at the dermal level directly addresses it. This is one of the mechanisms that makes PDRN particularly appropriate for the specific skin quality concerns that Indian professionals in their thirties and forties most commonly present.

The Practical Translation — What This Means for Indian Skin Approaching 40 in Mumbai

Indian skin has both advantages and specific challenges as it approaches the decade where K-drama actors’ skin becomes most conspicuously different from most people’s skin in real life.

The Natural Advantage

Higher melanin content in Indian skin (Fitzpatrick III–V) provides inherently greater UV protection than the lower-melanin skin of many Korean actors. The collagen degradation that UV drives — the primary ageing mechanism — is naturally slower in melanin-rich skin. Indian skin, all else equal, has a later structural ageing timeline than Fitzpatrick I–II skin. The glass skin at 40 that Indian women and men can achieve is not a pale imitation of the Korean ideal. It is something with its own depth, richness, and luminosity that lighter skin cannot produce.

The Specific Challenges

• Accumulated PIH — decades of Mumbai’s UV and pollution load, combined with the acne and skin inflammation that is common in younger years, produces the post-inflammatory pigmentation that makes Indian skin look uneven and aged beyond its structural quality. Regular pico laser and Korean peels in the thirties address this before it compounds further.
• Urban pollution damage — Mumbai’s PM2.5 and PM10 load generates continuous oxidative stress that accelerates the cellular ageing described above. PDRN’s anti-inflammatory and cellular repair mechanism is the most targeted clinical response to this specific driver.
• Barrier disruption — the humidity extremes of Mumbai’s climate, combined with years of potentially harsh skincare, produce barrier compromise that amplifies the visible effects of structural ageing. Barrier restoration — through Korean layered hydration, ceramide-based moisturisers, and Hydrafacial protocols — is the foundation before any corrective or anti-ageing treatment.

The Programme for Indian Skin in the Thirties and Forties

At Glam, the anti-ageing programme I design for clients approaching or in their forties reflects the Korean clinical philosophy — progressive maintenance rather than dramatic correction — adapted for Indian skin and Mumbai’s specific environment:

• Foundation: Daily SPF50, barrier-supportive home routine (ceramide moisturiser, gentle cleanser, niacinamide serum, Vitamin C morning).
• Monthly clinical maintenance: VVS Glass Skin Treatment or Hydrafacial — maintaining surface luminosity, managing pollution-driven congestion, supporting barrier health.
• Quarterly injectable programme: PDRN boosters for cellular repair and anti-inflammatory action; PN injections for structural firmness; HA skin booster for deep dermal hydration. These three, rotated across a quarterly schedule, address all four of the biological ageing mechanisms described above.
• As needed corrective: Trio Peel for pigmentation accumulation; pico laser for stubborn PIH or sun damage that has not responded to peel protocols.

This programme does not produce a dramatic transformation in three months. It produces a skin that at 50 is measurably better than the skin of someone who did nothing between 35 and 50. It produces photographs where people ask your age and do not believe your answer. It produces the specific quality that K-drama audiences have been asking about for a decade and that this blog, finally, explains.

“Some analyses estimate that up to 80–90% of visible skin ageing originates from sun exposure, with free radicals degrading collagen and producing pigment irregularities that scatter light rather than reflect it cleanly.”

The Honest Part — What Lee Byung-hun’s Skin Also Tells Us

I want to be honest about something that the K-drama skincare content consistently does not say: Lee Byung-hun’s skin at 55 also reflects access to resources — both clinical and financial — that most people do not have at the same level. Korean entertainment professionals have on-demand access to the most advanced aesthetic dermatology Korea offers, at a frequency that produces results most maintenance programmes approach but rarely fully replicate. The clinical maintenance rhythm available to a Korean actor in Seoul is different from what is available to most clients at Glam, because it is more frequent, more intensive, and more comprehensively resourced.

What I want to say alongside that honesty is: the gap is smaller than it appears. The protocols that produce the K-drama ageless aesthetic — PDRN, PN, skin boosters, Korean glass skin treatments — are available at Glam in Andheri West. The philosophy that produces their cumulative effect — consistent, progressive, long-term investment rather than occasional dramatic intervention — is the same philosophy whether applied in Seoul or Mumbai. The results at Glam for clients in their thirties and forties who maintain consistent programmes are genuinely striking. Not because we have replicated something unattainable, but because the biological principles are the same across geographies.

You do not need to be a Korean actor. You need to be consistent, start early enough, and choose the right clinical partner.

The Questions Indian K-Drama Fans Ask About Ageing and Korean Skin

I am 38 and only now starting to think about anti-ageing. Is it too late for Korean protocols to make a meaningful difference?

38 is an excellent age to begin. The collagen synthesis decline that PDRN and PN address is well underway but not yet severe — meaning there is significant cellular response capacity available. The UV damage that has accumulated since your twenties is addressable through pico laser and peel protocols. The barrier that may have been compromised by years of unsuitable products can be restored within weeks. A programme begun at 38 and maintained consistently will produce a skin at 50 that reflects twelve years of investment. Begin now.

My husband watches K-dramas and has started asking about Korean anti-ageing treatments. Are these appropriate for men?

Entirely — and the clinical reality is that men’s skin ages at a slightly different rate and pattern than women’s skin (higher collagen density initially, but a steeper decline from the mid-forties), meaning Korean anti-ageing protocols are if anything more impactful when begun before that decline accelerates. At Glam, a growing proportion of clients booking PDRN and skin booster programmes are men — particularly professionals in their thirties and forties for whom the gap between how they feel and how they appear in photographs or video calls has become something they want to address. The consultation, assessment, and programme design process is identical.

Which K-drama, besides Squid Game, should I watch if I want to see Korean anti-ageing skin quality at its most impressive?

As a dermatologist rather than a drama critic, I will answer clinically: any K-drama featuring Song Hye-kyo (born 1981), who has been a subject of consistent skin-quality conversation across more than two decades of her career; Jeon Do-yeon (born 1973), whose skin quality across her long career reflects consistent maintenance; or the complete catalogue of Lee Byung-hun’s work from Mr. Sunshine through Squid Game, which provides a near-twenty-year longitudinal study in what Korean clinical skin maintenance produces across the life of a demanding career. The skin quality visible in these careers is the answer to the question this blog is asking.

I have melasma and post-acne pigmentation. Will anti-ageing treatments make my pigmentation worse?

When correctly calibrated for your Fitzpatrick type — which is the foundational step at Glam — the anti-ageing protocols described in this blog will not worsen your pigmentation. PDRN’s anti-inflammatory mechanism actively reduces the melanocyte activity that drives both melasma and PIH. Korean-calibrated peels address pigmentation without triggering the inflammatory response that causes pigmentation to worsen. The programme I design for a client with active pigmentation concerns begins with the pigmentation before addressing the structural anti-ageing layer — because the canvas must be as even as possible before the luminosity work builds on it.

How long before I notice a difference from a Korean anti-ageing programme?

Surface treatments — the VVS Glass Skin Treatment, Hydrafacial — produce an immediate visible result after the first session. Injectable treatments — PDRN, PN, skin boosters — produce progressive improvement over four to six weeks after each session, with cumulative results building across a full programme of three to four sessions. The most meaningful anti-ageing change — the structural improvement that makes photographs look different — is typically visible to clients and those around them within three to four months of beginning a consistent programme. The full compound effect of twelve months of consistent Korean anti-ageing maintenance, for most clients, produces a result that surprises them when they look at photographs from a year earlier.

The K-Drama Skin You Have Been Watching Is Not a Fantasy. It Is a Programme. And It Is Available in Andheri West.

Lee Byung-hun’s skin at 55 is the most visible public demonstration of what Korean anti-ageing protocols produce over decades of consistent application. The biology is not Korean-specific. The discipline is not culturally exclusive. The clinical tools are available at Glam Korean Skin Studio in Andheri West — adapted for Indian skin, calibrated for Mumbai’s climate, and administered by a dermatologist who maintains an active clinical relationship with the Korean practitioners whose work produced the philosophy in the first place.

The best time to start was ten years ago. The second best time is the next consultation you book.

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