Body Art Weekly 5: The Tattoo That Disappears Is Still in Your Skin

The Tattoo That Disappears Is Still in Your Skin

Light-switching tattoo ink, fake piercings, cheap titanium and swapped ends: this week's stories all turn on what you cannot see in the picture.

Patrick’s take

Ask what stays in the skin

The new light-switching tattoo ink is being passed around online as the answer to regret, but the pigment does not leave when the colour does. Light changes how the particles look, and the particles stay in the dermis, where the body has to live with them. PhotoTat is still research, and the reporting says plainly that safety in humans has not been established. A tattoo you cannot see is still a tattoo, which means the useful question is what stays in the skin and what that material does over time.

The same mistake runs through the week. On a phone, a clip-on ring and a dermal anchor in the hand look alike, although one comes off and the other is an implant in a part of the body that never stops moving. "G23 titanium" now runs from about 52 cents to nearly 7 dollars a piece on Chinese wholesale listings, because ASTM F136 is a material standard and does not vouch for the threads, the polish or the paperwork. And a gold end on a titanium post makes a small galvanic cell that nobody can see.

So judge the material and not the picture. If a client brings you a switching tattoo, tell them it is still research and not a product, and that vanishing is not removal. When you buy titanium, ask for the batch documents before you compare prices. When a client wants a new end, check what the post is made of. And when a stretch meets resistance, pain or bleeding, stop and go back to the last comfortable size, because the next size can wait and a torn lobe cannot be hurried.

To my fellow modern primitives, Patrick

At Poli this week

The 2027 calendar is out

Twelve plates, one a month, in your language with your country's public holidays. Studios can add their logo and a motto. Free to download and print, or USD 29 printed and posted.

Our plates are now on Etsy

You can now also buy our plates as instant digital downloads on Etsy, in a shop called TattooPiercingPrints. Want one printed and framed instead? Order it from our shop at poliinternational.com/shop/, delivered to most countries but not yet to the EU, the UK, Norway, Iceland, Liechtenstein or Switzerland. The 4K files are on our website too.

Studio CRM is at version 1.0.43

Our free Studio CRM now scans both sides from a duplex feeder, keeps scanned pages readable in the PDF, and gives each client profile a Scans tab.

See any plate on a wall

Every plate page now has a See it on a wall button, which hangs the plate in a room so you can judge it before you print. It works in My album too.

Any 3 plates in 4K for USD 25

Choose any three plates across all our albums as 4K files for USD 25, instead of USD 37.50 bought one by one.

Poll of the week

A client asks for light-switching tattoo ink once it reaches the market. What do you want to see first?

Human safety data A full safety dossier, batch by batch Nothing would convince me It is the client's choice

One click to answer, then see what everyone said.

Crossword of the week

1112

Stuck? Every answer is in this week’s stories: follow the “story” link.

Across

Down

In the world

Viral

The Tattoo That Disappears Is Still in Your Skin

Photochromic tattoos can vanish under light, but the pigment remains in skin. Explore the science, safety gaps, and studio risks before trying them.

Viral

North West’s “Piercings” Were Mostly Fake — But the Real Story Is About What Viral Body Art Teaches Kids

North West’s viral fake-piercing debate exposes the real risks of hand dermals, tissue stress, snagging, migration, and social-media imitation.

Market

China’s Titanium Price Ladder Is Splitting the Piercing Market

Chinese titanium body-jewellery listings now span $0.52–$6.97, making documentation, landed cost, and batch consistency crucial for buyers.

Science

Mixed-Metal Piercings: The Galvanic Cell You Build When You Swap an End

Galvanic corrosion needs two dissimilar metals, metallic contact and an electrolyte, and assembled body jewelry supplies all three. This is the clinical physics of the cell you build when a titanium post is fitted with a gold, silver or steel end, and why area ratio and coating integrity decide whether it matters.