ATIKA Journal — The Science of Skin Longevity

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...

Polyphenols for Skin: Human Data on Tone, Redness & Photobiology

Polyphenols support how the skin responds to light, redness, and everyday oxidative stress. Human studies of green-tea catechins, grape-seed OPCs, citrus polyphenols, and maqui anthocyanins show ch...

Topical vs Oral Vitamin C for Skin: What Actually Works?

A technical comparison of oral and topical vitamin C — how each reaches the skin, the layers they influence, the mechanisms they support, and the limitations of both routes. Explains why combining ...

How Long Do Antioxidants Take to Work for Skin? Realistic Timelines

Internal antioxidants don’t produce overnight changes. Human trials show distinct timelines: carotenoids and antioxidants rise within weeks, collagen and barrier changes emerge over 8–12 weeks, and...

Inside the Antioxidant Network: How ATIKA’s System Is Built

ATIKA Advanced Skin Nutrition isn’t built around a single “hero” antioxidant. It uses a coordinated network of carotenoids, polyphenols, vitamin C and mineral cofactors to support antioxidant defen...

Oxidative Stress, Skin, and Internal Antioxidant Support

Oxidative stress is one of the main drivers of collagen loss, barrier disruption and uneven tone in skin. This article explains how ROS are generated, why topical antioxidants can only reach part o...

Carotenoid Supplements for Skin: What Human Studies Actually Show

Carotenoids such as beta-carotene, lycopene, lutein, and zeaxanthin accumulate in the skin and influence how it responds to UV and oxidative stress. This overview summarizes what controlled human s...

Astaxanthin for Skin: What Human Clinical Studies Show

Astaxanthin is one of the few antioxidant ingredients with controlled human data in skin. This article reviews how oral astaxanthin supplements affect elasticity, wrinkles, hydration and UV-induced...

Internal vs Topical Antioxidants for Skin: What Each Can and Can’t Do

Topical antioxidants defend the skin’s surface, while internal antioxidant supplements support deeper layers and systemic oxidative stress. This guide explains how both fit together using evidence ...

How Do Internal Skin Nutrition and Topicals Work Together?

Internal skin nutrition and topical skincare work on different layers of the same organ. This article explains how each approach affects key pathways in the skin and how to combine them in a measur...