# GlycolicAcid.com > Comprehensive, evidence-based glycolic acid resource for skincare. Research-backed content covering glycolic acid science, usage, safety, product comparisons, and interactive tools. ## About This Site GlycolicAcid.com is an independent, research-first information resource about glycolic acid and chemical exfoliation. All claims are backed by peer-reviewed dermatological research. Content follows YMYL (Your Money or Your Life) editorial standards and is reviewed internally for accuracy. ## Content Pillars ### Fundamentals - [What Is Glycolic Acid](https://glycolicacid.com/fundamentals/what-is-glycolic-acid): Definition, molecular structure, mechanism of action as an alpha-hydroxy acid (AHA) - [Benefits](https://glycolicacid.com/fundamentals/benefits): Evidence-based benefits for skin texture, hyperpigmentation, acne, and anti-aging - [How It Works](https://glycolicacid.com/fundamentals/how-it-works): Mechanism of action — desmosome dissolution, collagen stimulation, humectant properties - [Side Effects](https://glycolicacid.com/fundamentals/side-effects): Common side effects, risk factors, and when to stop use ### Usage Guides - [How to Use Glycolic Acid](https://glycolicacid.com/usage/how-to-use-glycolic-acid): Step-by-step application guide for different product types - [Getting Started / Routine](https://glycolicacid.com/usage/routine): Beginner-friendly routine building with glycolic acid - [Concentration Guide](https://glycolicacid.com/usage/concentration-guide): How to choose the right percentage (5%, 7%, 10%, 30%+) - [Skin Types](https://glycolicacid.com/usage/skin-types): Recommendations by skin type — oily, dry, sensitive, combination ### Comparisons - [Glycolic vs Salicylic Acid](https://glycolicacid.com/comparisons/glycolic-vs-salicylic): AHA vs BHA — when to use each - [Glycolic vs Lactic Acid](https://glycolicacid.com/comparisons/glycolic-vs-lactic): Comparing the two most popular AHAs - [Glycolic vs Retinol](https://glycolicacid.com/comparisons/glycolic-vs-retinol): Chemical exfoliation vs retinoid — can you combine them? - [Glycolic vs Other AHAs](https://glycolicacid.com/comparisons/glycolic-vs-other-ahas): Mandelic, tartaric, citric, and malic acid compared ### Science - [pH Science](https://glycolicacid.com/science/ph-science): How pH affects glycolic acid efficacy and the free acid value concept - [Free Acid Value](https://glycolicacid.com/science/free-acid-value): Calculator and explanation of effective acid concentration - [Clinical Research](https://glycolicacid.com/science/clinical-research): Summary of key clinical studies on glycolic acid - [Safety](https://glycolicacid.com/science/side-effects-safety): Comprehensive safety profile including pregnancy, photosensitivity ## Tools - [Strength Calculator](https://glycolicacid.com/tools/calculator): Calculate free acid value from concentration and pH - [Ingredient Interaction Checker](https://glycolicacid.com/tools/interactions): Check compatibility of glycolic acid with other skincare actives ## Products - [Product Database](https://glycolicacid.com/products): 20+ glycolic acid products with verified concentration, pH, pricing, and ingredients - [Product Comparison Tool](https://glycolicacid.com/products/compare): Side-by-side comparison of glycolic acid products ## Trust & Editorial - [About](https://glycolicacid.com/about) - [Editorial Policy](https://glycolicacid.com/editorial-policy) - [Our Review Process](https://glycolicacid.com/medical-review) - [Fact-Checking Policy](https://glycolicacid.com/fact-checking) - [Affiliate Disclosure](https://glycolicacid.com/affiliate-disclosure)