Materials & Quality

We’re on a mission to raise the standard for everyday earrings, because not all jewellery is created equal. At Smoothie, we believe what goes in your ears matters just as much as how it looks.

A lot of earrings on the market are gold-plated - but it’s what’s underneath that counts.

Whether it’s sterling silver, titanium, or stainless steel, we’re proud to be fully transparent about the metals we use. No mystery bases, no hidden copper or brass. Just high quality materials that are chosen for comfort, durability, and long-term wear - especially in sensitive piercings.

Some of our pieces are plated, and where the plating sits matters more than whether it is there at all. On our silver Implantium flatbacks, the post is raw implant-grade titanium and only the head is plated, in platinum. That means the part actually sitting in your piercing is bare titanium. On our gold flatbacks, the post and the head are both gold-plated. Posts are sold separately, so if you would rather nothing plated goes through the piercing, you can buy a raw titanium post and screw a plated head onto it.

We hold mill certificates for our titanium, which are the documents from the mill that supplied it. If you would like to see the certificate for something you own, email us at support@smoothielondon.com and we will send it over.

Let’s break it down:

It’s what’s underneath that counts.
Materials matter.
It’s what’s underneath that counts.
Materials matter.
It’s what’s underneath that counts.
Materials matter.

Waterproof. Worry-proof. Made to live in.

Titanium


Our titanium flatbacks are made from ASTM F136 implant-grade titanium, the same specification used for surgical implants. It contains no nickel, so this is the range we point you to if you react to nickel. Designed for sensitive ears and cartilage piercings, these earrings are built for everyday, everywhere wear, including sleep, showers, and the gym.

On the silver pieces, only the head is plated, in platinum, and the post is left as raw titanium. On the gold pieces, the post and head are both gold-plated. The titanium itself will not tarnish. Plating can wear over time with heavy wear, so plating is covered for a year.

Perfect for: Cartilage piercings, long-term wear, active lifestyles, and anyone who wants jewellery they never have to take off.



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Everyday elegance. Lightweight luxury.

Sterling Silver

Unlike costume jewellery made with brass or copper, our huggies are crafted from solid 925 sterling silver - a precious metal known for its durability, long-term wear, and safe use on sensitive skin.

Choose from 18k gold plating or a sleek silver finish. These hoops are hypoallergenic, lightweight, and perfect for ear stacking - just remove them before showering to preserve their shine.

Perfect for: Lobe piercings, day-to-night styling, and curated ear stacks.


Shop Sterling silver

Waterproof, affordable, and built to last.

Stainless Steel


For our statement styles - like large hoops - we use high-quality 316L stainless steel, known for its strength and durability. These pieces are water-resistant and tarnish-resistant, making them perfect for long days and bold looks.

Perfect for: Bold looks, everyday statement styles, and low-maintenance glam.


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