Replacement posts for our new Implantium™ heads
The post is the part of the jewellery that goes through your ear.
Post length determines how comfortable your jewellery feels, how it heals, and how neatly it sits.
16g (1.2mm)
Important: These posts are only compatible with Implantium™ heads purchased from October 2025 onwards.
They will not fit older Smoothie London heads or other brands.
Free UK delivery -Enjoy complimentary 24hr delivery on orders over £45
Same day dispatch -Order before 2pm GMT on weekdays for same day dispatch on next day deliveries
Implantium™ is Smoothie London's standard for jewellery that works as hard as you do:
- Implant-grade titanium: ASTM F-136 - the same material grade used in medical implants, chosen for its exceptional biocompatibility and suitability for sensitive skin.
- Waterproof & tarnish-proof: wear it in the shower, at the gym, or on holiday without a second thought.
- No-poke comfort: our flatback design means you can sleep, train, and live in them 24/7.
Where most brands settle for stainless steel or mystery alloys, we raised the bar and created Implantium™: a new benchmark for piercing jewellery that’s stylish, and designed for everyday life.
Everyone's skin is different - if you're choosing jewellery for a fresh or healing piercing, we always recommend following your piercer's guidance.
8mm - Standard for lobes and most fresh piercings.
6mm - Snug fit for thinner cartilage placements (helix, tragus, flat). If your piercing is fully healed and you want a flush look, choose 6mm.
For more custom sizing recommendations, use our chat above.
Premium quality
ASTM F-136
Implant Grade Titanium
21,000+
Stacks built
1500+
5-star reviews
Implantium™ difference
Why Implantium™
Our Implantium™ titanium is ASTM F-136 - the same material grade used in medical implants: highly biocompatible, waterproof, and made for everyday wear.