ATIKA Journal — The Science of Skin Longevity

Antioxidant Supplements for Skin: Do They Actually Work?

Antioxidant supplements reach deeper skin layers through circulation and influence UV-induced redness, oxidative markers, tone, and hydration. This article reviews what controlled human studies act...

Glutathione: What It Does in Every Organ and Why Supplements Often Fall Short

Glutathione is key inside cells, but supplements rarely reach the skin intact. Learn what actually supports antioxidant balance, collagen, and long-term skin health.

Collagen & Hormones: Estrogen, Cortisol, Thyroid, Androgens

A clinical explanation of how estrogen, cortisol, thyroid hormones, and androgens influence collagen, dermal thickness, and skin structure—and where foundational skin nutrition fits.

Collagen Myths: What the Science Actually Shows

A clear, evidence-based breakdown of common collagen myths and what studies actually show about dose, timelines, internal vs topical support, cofactors, and foundational skin nutrition.

Collagen & Menopause: Perimenopause vs Menopause Deep Dive

A clinical explanation of how collagen changes across perimenopause and menopause, how estrogen decline affects dermal structure, and where foundational skin nutrition supports skin longevity.

Collagen Peptides vs Gelatin vs Whole Collagen: What Each Means for Skin

A clinical comparison of collagen peptides, gelatin, and whole collagen — how they differ in structure, absorption, and evidence, and what actually matters for skin.

What Is Collagen? A Plain-Language Guide for Skin

A clear, evidence-based explanation of what collagen is, where it sits in the skin, how its structure changes with age and UV exposure, and why type I and III collagen matter most for visible firmn...

How Do Internal Antioxidants Protect Your Skin From Oxidative Stress?

Oxidative stress begins damaging collagen and barrier lipids long before visible aging appears. This article explains how internal antioxidant systems complement topical care to support deeper skin...

How Does Pollution Cause Oxidative Stress — and What Helps Your Skin?

Pollution and sunlight create free radicals that add to daily oxidative stress in the skin. This article explains how oxidative stress affects collagen, barrier lipids, and cellular energy — and ho...

Blue Light, Digital Stress, and Your Skin: What We Know So Far

Blue light from screens isn’t as strong as UV, but research shows it can contribute to oxidative stress, pigmentation changes, and texture shifts over time. This article explains what HEV light act...