Skin Care Science & Treatments
Evidence-based guides to skin care science, anti-aging treatments, skin types, active ingredients, and professional procedures. Researched by the Glow Journal editorial team.
Retinoids Explained: Retinol, Tretinoin, Adapalene & Beyond
A comprehensive guide to retinoids — the most evidence-backed anti-aging and acne-fighting ingredient class. Understand the differences between retinol, tretinoin, adapalene, tazarotene, and newer retinoid derivatives.
Medical-Grade Skin Care vs Drugstore: Is the Price Justified?
An objective comparison of medical-grade and drugstore skin care products. We examine ingredient concentrations, formulation quality, clinical evidence, and whether premium products deliver results that justify their higher price tags.
Hyperpigmentation Solutions: What Actually Fades Dark Spots
An evidence-based guide to treating hyperpigmentation, including melasma, post-inflammatory hyperpigmentation, and sun spots. Learn which ingredients, treatments, and protocols dermatologists recommend.
Acne Treatments Ranked: From OTC to Clinical Procedures
A comprehensive ranking of acne treatments from over-the-counter products to prescription medications and clinical procedures, based on clinical evidence and dermatologist recommendations.
Understanding Your Skin Type: A Professional Guide
Learn how to accurately identify your skin type using dermatologist-approved methods. This guide covers oily, dry, combination, sensitive, and normal skin types with tailored care recommendations.
Korean Skin Care Routine: The 10-Step Method Explained
A detailed guide to the Korean 10-step skin care routine, including the science behind each step, product recommendations by skin type, and how to customize the method for your needs.
Chemical Peels vs Microneedling vs Laser: Complete Comparison
A comprehensive, evidence-based comparison of chemical peels, microneedling, and laser treatments for skin rejuvenation. Costs, downtime, results, and who each procedure is best suited for.
The Science of Skin Aging: What Actually Works in 2026
An evidence-based deep dive into skin aging science, from collagen loss to cutting-edge anti-aging treatments. Learn what dermatologists say actually works to slow and reverse visible aging.