Many people think "aging" means wrinkles. In reality, wrinkles are just the result — not the cause.
Like a tree with yellowing leaves — we see the yellow leaves first, but the real problem may have started at the roots. The same is true for skin. Before wrinkles, sagging, widened pores, dullness, or uneven tone ever appear, changes have already been happening inside the cells for years.
Dr. Punyanun often tells patients: "Good treatment isn't just about looking younger — it's about helping skin cells function better again." This philosophy is called Skin Longevity — caring for skin so it stays strong and functions well for as long as possible.
1.What Causes Skin Aging?
Picture skin as a house — how good a house looks doesn't depend on paint color alone, but on its structure, pillars, cement, and the people maintaining it. Skin works the same way: as we age, every system starts declining together.
- Fibroblasts slow down. Fibroblasts are skin's "factory," producing collagen, elastin, and hyaluronic acid. From around age 25 onward, fibroblasts gradually slow down, leading to thinner skin, reduced elasticity, slower recovery, and slower wound healing — like a factory that once had 100 workers now down to 40; even with full raw materials, output drops.
- Collagen declines every year. Collagen is like the concrete pillars of a house, supporting skin's strength. After roughly age 25, the body produces about 1% less collagen per year, and in women, the decline can accelerate significantly after menopause — leading to thinner, less elastic, more wrinkle-prone skin, with sagging and deeper folds.
- Elastin deteriorates. Many know collagen but forget elastin, which works like a rubber band — skin stretches when you smile, then bounces back. As elastin deteriorates, skin stretches but doesn't recover, leading to nasolabial folds, drooping eyelids, and sagging cheeks.
- Hyaluronic acid declines. HA isn't just for hydration — it lubricates the ECM, supports cell communication, cushions impact, and gives skin a plump look. As HA declines, skin becomes dry, less plump, and makeup doesn't sit well.
- The ECM deteriorates. The extracellular matrix (ECM) is skin's foundational structure — like a building's steel frame — made of collagen, elastin, hyaluronic acid, fibronectin, and proteoglycans. When the ECM deteriorates, even added collagen doesn't organize well. This is why modern skin restoration focuses on "repairing the cellular environment" rather than simply adding substances — a principle aligned with regenerative medicine.
- Cellular senescence. This is the heart of skin longevity — senescent cells don't die, they "stop working." These cells don't produce collagen, secrete inflammatory factors, and accelerate aging in neighboring cells — like an employee who stopped working but still sits in the office, dragging others down too.
- Oxidative stress. Every day, cells face damage from UV, PM2.5, smoking, sugar, stress, and poor sleep — generating free radicals that damage DNA, mitochondria, collagen, and cell membranes, accelerating cellular aging.
- Mitochondrial decline. Mitochondria are the cell's power plant; as energy production drops, cells can't repair themselves, divide more slowly, and produce less collagen.
2.So How Do We Restore Skin?
Dr. Punyanun organizes skin restoration into four levels:
- Level 1: Lifestyle
Adequate sleep, exercise, protein intake, reduced sugar, and sun protection — the most important foundation, and always the starting point. - Level 2: Skincare
Retinoids, vitamin C, niacinamide, sunscreen — help reduce cellular damage and stimulate some degree of collagen production. - Level 3: Regenerative Medicine
The goal here is "helping fibroblasts function better again." Examples include polynucleotide (PN), PRP, recombinant human collagen, and growth factors.
Regenerative medicine research points to restoring cellular function and ECM synthesis as a key strategy for slowing skin decline. PN HPT has real-world data in Asian populations showing improvements in hydration, elasticity, radiance, and skin quality by stimulating fibroblast activity and ECM component synthesis, with a favorable safety profile. - Level 4: Energy-Based Devices
Ultherapy Prime, SylfirmX, Pico laser, Endolift, and Emface each play different roles — stimulating collagen, tightening tissue, reducing pigment, or supporting restoration — typically working best when matched to the specific problem and combined with regenerative treatment.
3.How Dr. Punyanun Views Anti-Aging
Many believe anti-aging means "looking young." In reality, Dr. Punyanun believes: "The best treatment makes skin strong enough to look good for years to come — not just younger-looking today."
When planning treatment, the focus isn't just where wrinkles are located, but which skin layers have started declining — then choosing an approach suited to each person's structure and goals.
4.Conclusion
Skin aging isn't just about declining collagen — it results from multiple systems declining together: slowing fibroblasts, deteriorating collagen and elastin, declining hyaluronic acid, a weakening ECM, cellular senescence, rising oxidative stress, and declining mitochondrial function. Understanding these causes means restoration can address the root, not just mask surface symptoms.