Mica Powder

Start with 1 teaspoon of mica per pound of oils for a vibrant color without overdoing it. Use less (around ½ teaspoon) for pastel shades, or up to 2 teaspoons for bolder, more saturated color, but avoid going higher since too much mica can cause staining or affect lather. Pre-mix your mica with a bit of oil from the batch to prevent clumping, and always test in a small batch first, since results can vary based on your base oils, fragrance, and additives.

Use ¼ to ½ teaspoon of mica per pound of soap base, starting light and building up for deeper color. Mix the mica with a small amount of glycerin or rubbing alcohol before adding it to your melted base to help it disperse evenly. Keep in mind white or opaque bases will mute the color, while clear bases make it appear more vivid and shimmery.

Start with 1–2 teaspoons of mica per pound of dry ingredients. Disperse the mica in a small amount of liquid (like isopropyl alcohol or sweet almond oil) before adding it to your dry mix to prevent clumping, and add about 0.5–1% polysorbate 80 to help the color disperse in water rather than float or stick to the tub. For a bolder, more saturated bathwater color, pair mica with lake dyes. Always test the finished bomb in a tub of water first.

Mica works best as a decorative accent rather than a primary colorant in candles. The most reliable method is dusting a small amount into the mold or onto the surface before pouring, which creates a shimmering outer layer once the candle sets. It's better suited to wax melts (¼–½ teaspoon per pound) than wick-burning candles, since mica doesn't fully dissolve in wax and can clog a wick if overused. If you do use it in a container candle, keep it under ⅛ teaspoon per pound and test thoroughly.

Yes, use about 1–2% mica by weight of the total resin mixture (for example, 1–2g per 100g of resin and hardener). Less mica (around 0.5%) gives a translucent, subtle shimmer, while more (3%+) creates a deeper, more opaque, metallic look. Add the mica slowly to your mixed resin and stir until evenly distributed, then pour and work quickly within the resin's working window.