ATIKA Journal - Foundational Supplement for Skin Longevity

Internal vs Topical Vitamin C: What They Each Do for Skin

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 Internal Antioxidant Supplements Take to Affect Skin?

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...

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...

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 Supplement for Skin: What 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 Internal and Topical Skincare 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...

How Perimenopause Accelerates Collagen Loss: Skin Changes After 40

Hormone fluctuations in perimenopause can reduce collagen, alter barrier lipids, and change how skin responds to UV. This article explains the science behind these shifts and how targeted nutrition...