|What is it?||Ultramarines are a synthesized pigment made from ingredients like kaolin clay and sulfur. The original blue pigment was ground from the semi-precious stone lapis lazuli, making it extremely expensive, and we’ve been synthesizing it since the early 1800s.|
|Appearance||Vibrant fine pigments available in bright blue, lavender, and purple.|
|Usage rate||I haven’t been able to find a maximum usage level. These pigments are very potent, though, so I can’t imagine you needing more than 50% for most cosmetics.|
|Scent||Generally nothing noticeable, though it can be sulfur-y in high-pH environments|
|Why do we use it in recipes?||As pigments, for colour.|
|Do you need it?||No, though if you are making cosmetics and want more natural bright blues and purples they are your only option.|
|Strengths||Strong, vibrant pigments that are generally considered natural.|
|Weaknesses||The blue in particular can be difficult to blend into formulas.|
|Alternatives & Substitutions||Lake dyes are the only alternative for such bright, potent pigments.|
|How to Work with It||Include in the grinding phase for powdered cosmetics or blend into melted creamy bases.
Ultramarine is not approved for lip use in the USA, but it is in the EU.
|Storage & Shelf Life||Stored somewhere cool, dark, and dry, ultramarine pigments should last at least five years.|
|Tips, Tricks, and Quirks||Due to the sulfur used in the manufcature of ultramarines they can develop an eggy scent if used in products with a pH above 6.|
|Recommended starter amount||10g (0.35oz)|
|Where to Buy it||Buy it from an online DIY ingredient supplier or Amazon.|