Jewelry Selection & Materials

ASTM F136 Titanium: What the Specification Means

A practical guide to ASTM F136 titanium, product-analysis tolerance and Oumo Jewelry's ongoing third-party testing and supplier quality control.

How to Clean and Care for Sterling Silver Piercing Jewelry

Care for sterling silver piercing jewelry with a gentle routine, conservative tarnish management and clear boundaries for healed versus healing piercings.

How to Clean and Care for Stainless Steel Piercing Jewelry

Use a conservative routine for stainless steel piercing jewelry, protect its finish and know when a surface, closure or piercing needs professional attention.

How to Clean and Care for Gold-Plated Piercing Jewelry

Protect a plated surface with gentle handling, identify signs that need inspection, and separate jewelry maintenance from piercing aftercare.

How to Clean and Care for Titanium Piercing Jewelry

Clean and store titanium piercing jewelry with a conservative routine, inspect its closures and settings, and know when a piece needs professional attention.

When to Change Healing Jewelry for Decorative Jewelry

Know the difference between downsizing and a decorative change, check healing and fit, and learn when a professional should handle the switch.

Piercing Jewelry Materials for Sensitive Skin

Learn how to compare piercing-jewelry materials, coatings and product evidence—and when a skin reaction needs professional assessment.