16 Gauge Hypoallergenic Threadless Crystal Top Bioflex Stud
Add a delicate pop of colour to your piercing with this Crystal Top BioFlex Flat Back Stud. It combines a flexible BioFlex post with a tiny 2mm cubic zirconia crystal, available in nine different colours.
✨ Why You’ll Love It
✓ Nine Crystal Colours: Choose from Purple, Blue, Clear, Green, Black, Pink, Aqua Blue, Red or Tanzanite to complement your piercing collection.
✓ Flexible BioFlex Post: The lightweight, flexible post may feel gentler against the teeth and gums than traditional metal jewellery when worn in a healed lip piercing.
✓ Threadless Push-Fit Top: The crystal topper presses securely into the post, creating a smooth, streamlined finish without external screw threads.
💎 The Detail
Dainty, colourful and easy to coordinate, this 16 Gauge flat back stud features a petite 2mm crystal that adds subtle sparkle without overwhelming your piercing. Its low-profile design works beautifully alone or as part of a colourful curated arrangement.
The flexible BioFlex post is finished with a flat backing and paired with a 316L surgical steel crystal setting. Suitable placements include the labret, medusa, Monroe, snake bites, helix, tragus, conch, flat, forward helix and lobe, depending on your anatomy and the confirmed post length.
Recommended for fully healed piercings. Clean gently with sterile saline or mild soapy water, rinse thoroughly and allow the jewellery to dry completely. Check that the push-fit topper remains secure before wearing.
Sold individually.
WHERE CAN I WEAR THIS?
The highlighted areas below show typical compatible placements for this jewellery.
Suitable for the highlighted piercing placements shown above. Check the gauge and bar length against jewellery that already fits your piercing comfortably.
Placement suitability and sizing can vary depending on your individual anatomy and piercing position.
These are the measurements for this piece of jewellery. If this product has multiple sizes, the guide will use your selected size where available. Compare with jewellery that already fits you comfortably if you're unsure.
Shipping & Delivery
We aim to dispatch orders within 24 hours, Monday–Friday. All UK delivery options are fully tracked.
Need it quickly? Express orders placed before 2pm Monday–Friday are eligible for same-day dispatch. Next Day Delivery orders must be placed before 2pm for same-day dispatch.
Cut-off times exclude weekends, UK Bank Holidays and multipack sets. Delivery estimates begin after dispatch.
Returns
Changed your mind? Unopened piercing jewellery can be returned within 90 days of purchase.
Your statutory rights are not affected.
CARE & LONGEVITY
A little thoughtful care will help your jewellery look its best for longer.
Wear your jewellery thoughtfully and avoid unnecessary exposure to moisture, beauty products and harsh chemicals.
After contact with sweat, seawater or chlorinated water, rinse your jewellery with clean water and dry it thoroughly using a soft cloth.
Clean gently using warm water and a mild, fragrance-free soap. Rinse thoroughly and dry with a soft cloth before wearing or storing.
Avoid bleach, alcohol, abrasive cleaners and other harsh chemicals.
Store your jewellery somewhere clean and dry, ideally separately from other pieces to prevent scratches or tangling. The pouch provided with your order is perfect for keeping it protected.
Avoid knocking, pulling or catching crystal settings on clothing. Clean around decorative details gently and avoid soaking or using abrasive brushes.
Jewellery care is different from piercing aftercare. If your piercing is new, irritated or still healing, speak to a professional piercer before changing your jewellery.
Typical Sizes by Piercing
| Piercing | Common Gauge | Typical Post Length* |
|---|---|---|
| Lobe | 16G–20G | 6–8mm |
| Helix | 16G–18G | 6–8mm |
| Forward Helix | 16G–18G | 6mm |
| Flat | 16G–18G | 6–8mm |
| Tragus | 16G–18G | 6mm |
| Conch | 16G | 6–8mm |
| Nostril | 18G–20G | 6–8mm |
*Typical sizes are a guide for healed piercings only. Anatomy and piercing placement vary, so your ideal post length may differ. Where possible, measure jewellery that already fits comfortably or ask your piercer.
Gauge / Thickness
| Gauge | Thickness | Commonly Used For |
|---|---|---|
| 20G | 0.8mm | Fine piercing jewellery |
| 18G | 1.0mm | Nose and some ear piercings |
| 16G | 1.2mm | Common cartilage and flat back jewellery size |
| 14G | 1.6mm | Thicker piercing jewellery |
Bar Length
| Length | Fit |
|---|---|
| 4mm | Very short / close fit |
| 6mm | Close, neat fit for many healed piercings |
| 8mm | More room and a slightly looser fit |
| 10mm | Longer fit / additional room |
| 12mm+ | Extra length where required |
How is length measured?
Bar length is measured along the wearable post only, not including the decorative top or flat back.
Everyone’s anatomy is different. If possible, measure a piece of jewellery that already fits you comfortably.
“Very pretty & sparkly”
