A fresh tattoo is an open wound, and gym sessions too early can cost you ink, healing time, and your health. Here are the evidence-based minimum waits by workout type and the signs your tattoo is actually ready.

Read the full article: How Long After a Tattoo Can You Exercise?

From Poli International, body art material science and safety. poliinternational.com

Steam sterilisation is the gold standard for reprocessing instruments in piercing and tattoo studios, but only when the sterilizer class, load type, and testing regime are right. Here is how EN 13060 classes B, N, and S map to real studio work.

Read the full article: Steam Sterilizers: What a Body Art Studio Actually Needs to Know

From Poli International, body art material science and safety. poliinternational.com

Metal-on-metal hip implants failed because wear and corrosion at the bearing released cobalt and chromium ions into the body. The same tribocorrosion physics governs metal body jewellery. Here is what the implant lesson means for your next piercing.

Read the full article: Metal-on-Metal Implants: What the Hip Replacement Lesson Teaches Body Jewellery

From Poli International, body art material science and safety. poliinternational.com

This article explains why ASTM F136 extra‑low‑interstitial titanium remains the most reliable implant‑grade alloy for body jewelry, contrasting its passive oxide stability and low ion release with cobalt‑chromium, niobium, and zirconium using recent implant and regulatory research. It translates those findings into specific guidance for studios on alloy selection, documentation, and risk management for fresh and healed piercings.

Read the full article: Implant-Grade Alloys for Body Jewelry: What the Latest Implant Science Really Changes for Studios

From Poli International, body art material science and safety. poliinternational.com

Viral “year-long” tattoos are still visible after 14 months because once pigment hits the dermis, biology beats marketing; artists must treat ephemeral inks as permanent and advise clients accordingly.

Read the full article: Biodegradable Tattoo Ink: Why Ephemeral Ink Fails & Safety

From Poli International, body art material science and safety. poliinternational.com

Body Art Alliance’s sale process points to tighter wholesale terms, weaker rebates, and rising pricing power in tattoo supply. Studios should lock terms now and diversify suppliers.

Read the full article: U.S. tattoo supply consolidation is the commercial story to watch now

From Poli International, body art material science and safety. poliinternational.com

South Korea's Ministry of Health and Welfare distributed Standard Guidelines for Tattoo Procedures on July 30, 2026, the first concrete regulatory step since the Supreme Court ended the 34-year tattoo ban. The Tattoo Artist Act takes effect October 2027, requiring licensing for an estimated 50,000+ artists.

Read the full article: South Korea's Health Ministry Just Set the Standards for a Legalized Tattoo Industry

From Poli International, body art material science and safety. poliinternational.com

Gamma irradiation, ethylene oxide, and steam autoclave each degrade body jewelry polymers differently. BioFlex PP-R, PTFE, silicone, and acrylic respond with distinct chain scission, crosslinking, and hydrolysis behavior.

Read the full article: Sterilization and Polymer Degradation: Why Gamma, EO, and Steam Don't Treat Body Jewelry Equally

From Poli International, body art material science and safety. poliinternational.com

The HMRC-compliant deduction checklist every self-employed tattoo artist and piercer in the UK should keep in the studio drawer, organised into ten categories with the claims most people miss.

Read the full article: Do Tattoo Artists Pay Taxes? UK Deduction Checklist

From Poli International, body art material science and safety. poliinternational.com

True titanium allergy is extremely rare. When a titanium piece causes a reaction, the cause is usually alloying elements, surface contamination, or a piece that is not actually implant-grade. Here is how to tell the difference.

Read the full article: Can You Be Allergic to Titanium Body Jewelry? What the Evidence Actually Shows

From Poli International, body art material science and safety. poliinternational.com