SkinGuide
How Do I Choose and Use Sunscreen?
What SPF and broad spectrum mean, why the AAD says 30 and the FDA says 15 or higher, how much to apply and how often, why no sunscreen is waterproof, and the other protection that matters just as much.
ArticlesTopic 07
Skin
Adult acne, dark patches, bumps and redness. Evidence over hype for the skin you’re in.
SkinGuide
What Is Psoriasis? Scaly Patches and the Joint Pain to Watch For
How an overactive immune system builds up thick, silvery scales, the triggers from stress to strep, the types, how mild and severe cases are treated, and the joint symptoms that should never wait.
SkinEvidence check
Merino Wool and Eczema: Check Which Fabric Was Studied
Small trials tested specified fine fibers, not every garment labeled merino. Their positive findings need to be read alongside current advice to avoid wool against eczema-prone skin.
SkinEvidence check
Oral Hyaluronic Acid for Skin: What Two Trials Measured
Trials found changes in facial hydration and wrinkle measurements. The formulation, study population and difference between a device reading and what someone notices matter when weighing a purchase.
SkinEvidence check
Water Softeners for Eczema: What the SWET Trial Tested
A randomized trial in 336 children found no added benefit on its main eczema measure. Read the population, treatment and outcome before treating softer water as a skin therapy.
SkinGuide
Benzoyl Peroxide Storage After the Benzene Reports
Check the package temperature instructions, product age and current recall details. The FDA’s 2025 findings and the AAD’s storage advice answer different parts of that decision.
SkinEvidence check
Four-Day Calcipotriene and Fluorouracil: What the Study Compared
The short actinic-keratosis regimen has promising findings, but its comparison treatment and healing calendar matter.
SkinEvidence check
Erythrasma Cream or Tablets: What Two Trials Measured
Fusidic acid, erythromycin and clarithromycin have been compared, but the studies used different measures and brief follow-up.
SkinGuide
MI Contact Allergy: Check More Than Your Face Cream
Methylisothiazolinone can appear in personal-care, cleaning and decorating products. A confirmed allergy needs an avoidance list you can use across those settings.
SkinEvidence check
Thiamidol Cream for Dark Spots: The 2026 Trial’s Mixed Results
Check the diagnosis, the test formula and the outcome behind a skin-care claim.
SkinExplainer
Why a Rash Can Spread While Steroid Cream Eases the Itch
Steroid-modified ringworm can lose its familiar border. A cream history and skin scraping may help identify it.
SkinEvidence check
Can 5% Urea Cream Delay an Eczema Relapse?
The maintenance trial’s comparison cream deserves a close look before you use its results to choose a moisturizer.
