Shop Dyes and Books › Smart Color Crystals Smart Color Crystals $10.00 200g of sodium sulfate to use with acid leveling dyes to slow the uptake of dye for more consistent and even color. 200g of sodium sulfate to use with acid leveling dyes to slow the uptake of dye for more consistent and even color. Quantity: Add To Cart Added! You Might Also Like Citric Acid Crystals $10.00 Citric Acid Crystals BULK BUY REFILL $19.00 Smart Color Crystals BULK BUY REFILL $19.00 Dye Smart™ Auxiliary Starter Set. All Palettes. Sale Price: $48.00 Original Price: $51.00 Sale
