Materials
Our silicone jewelry
Silicones are polymers, which are large molecules composed of many repeated sub-units. These polymers are made up of siloxane – a chain of alternating silicone atoms and oxygen atoms frequently combined with carbon and/or hydrogen. Silicone is an element found in sand, where it is extracted from and passed through hydrocarbons.
Silicone does not contain allergens, such as heavy metals, nickel or latex. Silicone is used in various forms in healthcare (eg prostheses and artificial joints) and in cooking, because of its fantastic properties. Silicone is not plastic, nor has our non-renewable natural resource, oil, been used when manufacutring silicone.
Advantages of silicone as a jewelry material:
- lightness: a piece of jewelry weighs only a few grams
- non-allergenic: very few people are allergic to silicone
- safety: the material does not dissolve chemicals on the skin (which eg plastic can do)
- durability: the jewelry lasts well and can withstand wear and tear
- hygienic: the jewelry can be washed after use and thus kept clean and hygienic
Our wooden jewelry
The 2 mm thick birch veneer we use meets the FSC standard. The FSC mark indicates that only timber from FSC-certified forests has been used as the product's material.
The hooks we use
The hooks of Coruu earrings are made from surgical steel (316). These hooks have been tested for jewelry safety in an accredited laboratory in Finland and comply with EU standards and the REACH regulation. Surgical steel is high-quality stainless steel, making it an excellent choice for individuals with sensitive skin and allergies, including those allergic to silver or gold. It is resistant to moisture and maintains its color over time.
The hooks of Muumi earrings are silver-plated. The base metal used is brass, which is an alloy of copper and zinc. Brass is the most common base metal for jewelry components due to its durability and hardness compared to pure copper. Silver may tarnish over time. Hooks do not contain nickel.
Niobium hooks
It is also possible to change to Niobium hooks for an additional fee.
Niobium (chemical symbol: Nb) is the safest metal for people with allergies and sensitive skin. If you have never been able to use any metal jewelry, you can use Niobium. It is a pure element (99.99%) without any extra added.
Niobium does not react with the skin's chemistry and does not rust or darken. Because of this, Niobium is used in medical devices such as pacemakers.