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Aurora Dyz

What type of colourant is best for my product? Dyes, pigments, neons or micas?

What type of colourant is best for my product? Dyes, pigments, neons or micas?

There is such a vast array of products that it's impossible to cover every one of them here but we will attempt to cover the most common ones. Like anything else, the more familiar you become with each different type of colourant, the easier it will become to identify which type will be most suited to your project.

Mica- this will produce a beautifully coloured finished bath bomb but won't produce bold colours in the bath tub. Mica does however make for a lovely effect, particularly synthetic mica/fluorphlogopite, which produces an almost liquid metal effect when used in high enough quantities. Micas do leave a residue in the bath tub and can stain if used in large quantites so it's worth bearing this in mind. They also require the use of a surfactant to prevent them from sticking to the sides of the bath tub. It is highly recommended that tests are carried out prior to putting bath bombs on the market to prevent complaints regarding staining. It's also worth noting that some colours contained in blue and green micas are not permitted for use in bath bombs in the US so it is important to check this before purchasing.


Mica is best suited to cold process, hot process, melt & pour and whipped soap. 

Fluorescent/Neons- These are similar to mica in the sense that they will produce a brightly coloured finished bath bomb but it will take significant quantity in order to colour the water. We recommend that neons are used in conjunction with water soluble dyes to achieve the best results. Our neons are coated so won't stain bath tubs but may leave a residue in the bath after use depending on usage rates but this is easily rinsed away. As above, some colours contained in blue and green neons are not permitted for use in bath bombs in the US so it's important to check this before purchasing.

Neons are a truly great non bleed option for many products, including all varieties of soap and soap bases. 

Water soluble dyes- THE king of bath bomb colourants, producing super bright and bold colours both in the finished bath bomb and in the water. Water soluble dyes are the choice of most bath bomb makers chosen for their vibrancy and complete solubility in water. Water soluble dyes will not stain and will not leave a residue. We don't recommend water soluble dyes for soap products however due to colour run off and bleed.

Water soluble dyes are a fantastic colourant for bath bombs and other bath and body products such as bubble bars and truffles.

Lakes- Lakes are a weaker form of dyes and are water miscible but not water soluble. Lakes come in 2 different types- high and low dye load. All Auroradyz lakes are high dye load. A surfactant is required in a bath bomb recipe containing lakes to help to disperse them or they may stick to the side of the bath tub and/or leave a residue. Lakes negate the need to bloom however and are still the first choice for bath bomb colourants amongst many bath bomb makers, particularly in the US.

Lakes are a great choice for bath bombs and other oil based cosmetics.

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