Is natural indigo powder safe for soap and makeup?
Yes – 100% cosmetic-grade Indigofera tinctoria, skin-safe for soaps and colour cosmetics.
How much to use in cold-process soap?
1-3% of oils (0.5-1.5 tsp per 500g batch); disperse in lightweight oil and add at light trace for bleed-free swirls.
Does it bleed or migrate in soap designs?
No – pH-stable and bleed-free when dispersed; colour deepens during cure.
Can it be used in melt & pour or eyeshadow?
Yes – 0.5-1% in M&P (glycerine dispersion); 5-15% in mineral makeup for rich blue pigment.
How does the colour develop?
Green-blue powder turns true blue in alkaline soap; stable pH 4.5-8.5 in cosmetics.
Is it lightfast and long-lasting?
Yes – resists fading for 12+ months when stored away from direct sun.
Can it create tiger stripes or bold contrasts?
Absolutely – layer undispersed powder or use in swirls for dramatic effects.
How to disperse for best results?
Mix 1:3 with lightweight oil (jojoba/grapeseed) before adding to batter.