Our Materials

At Cor Bloom, we are committed to providing you with the highest-quality jewelry crafted from premium materials:

- F136 Implant-Grade Titanium
- 925 Sterling Silver
- 316L Surgical Stainless Steel
- Eco Brass

We apply a thick layer of plating, including 18K/24K Gold, Rose Gold, Black Gold, or Rhodium, ensuring a luxurious and durable finish.


These materials are carefully selected to be nickel-free, lead-free, and hypoallergenic, making them suitable for most sensitive skin types.

To ensure the best experience, we kindly ask that you review the product descriptions before completing your purchase. While our jewelry is designed with your comfort and safety in mind, it is important to remember that individual sensitivities may vary. We recommend being aware of any personal allergies to metals, as it is the customer's responsibility to consider any specific sensitivities. Unfortunately, we cannot accept liability for any allergic reactions or irritations that may occur.

For more detailed information about the materials used, please refer to the product description section on each item’s page. We are here to help and want you to love your Cor Bloom jewelry.

ASTM F136 Implant-Grade Titanium

The best and safest hypoallergenic materials for piercing jewelry.

Cor Bloom's ASTM F136 Implant-Grade Titanium is hypoallergenic and nickel-free, designed for:

  • Sensitive Skins
  • Initial Piercings
  • Healed Piercings
  • Kid Piercings

Why choose Cor Bloom Titanium Jewelry?

  • Water-resistant & Sweat-resistant
  • Hypoallergenic & Tarnish-Free
  • Comfortable all-day wear
  • You can sleep in it
  • A wide range of sizes is available 
  • No-poking, flat on the back design

Our versatile Titanium Flatback Posts are available in multiple lengths, from 4mm to 14mm, so that you can choose the perfect size for your piercing, and wear it all day long, even when you sleep.

High-Quality 925 Sterling Silver

All Cor Bloom sterling silver base jewelry is meticulously plated with multiple layers of Rhodium, 18 Carat Gold, Rose Gold, or Black Gold. Each piece is then treated with our special technique to help preserve its shine and luster over time. Additionally, our jewelry is hypoallergenic and tarnish-free, guaranteed to maintain its beauty with proper care.

Surgical 316l Stainless Steel

Surgical 316L stainless steel is an excellent choice for jewelry due to its hypoallergenic properties, durability, and versatility, meaning that you can enjoy your jewelry without worrying about allergic reactions. It's a great option for anyone who loves accessorizing but has sensitive skin. Safe for kid piercings, too.

Hypoallergenic Eco-Brass

Brass is known for its strength and durability and can last for a very long time with reasonable care and maintenance. We use brass and an extra-thick layer of 18-carat gold or Rhodium for a sheen that captivates. Our brass-base jewelry will not cause allergies and is tarnish-free.