Why this scarlet liquid pigment holds its tone across so many formulas
Scarlet liquid pigment ultra belongs to the Pigment Liquid ULTRA Dyes line, built for formulators who need reliable, stable color in water-based and glycerin-based systems without fading or separating after storage. The 1 liter format suits studios and small production lines that have moved past single-batch experiments but are not yet running full industrial volumes, giving enough supply for dozens of batches while keeping room for testing new formulas.
Globally, liquid ultra dyes see the strongest demand in household chemical manufacturing — dish soaps, laundry gels, scented toilet tablets — as well as in the candle industry, where an even color without pigment migration to the wax surface during burning is essential. In personal care manufacturing, scarlet tones are widely used in shower gels, bath foams, bath bombs, color-release shampoos and decorative packaging elements. Less frequently, but still notably, the pigment appears in handmade soap making for achieving a bright, cool red shade in transparent bases.
The dye blends well with plant and fruit extracts that add both fragrance and natural undertones: combined with Strawberry Extract 1 L, it creates a harmonious berry composition for gels and foams, while pairing it with Liquid Ultra Multifruit Dye 1 L allows layered color transitions in transparent products. To soften the brightness toward a warmer, more natural tone, a small amount of Parsley Extract 1 L is sometimes added, shifting the shade toward a warm reddish-brown.
The pigment should be introduced at the final stage of formulation, once the base has cooled below 40-45 degrees, to prevent thermal breakdown and loss of color depth. Typical dosage ranges from 0.5 to 3 ml per 100 g of finished product, depending on the desired intensity and the transparency of the base. Before use, gently shake the container, since pigment particles can naturally settle at the bottom over long storage periods. Store the product tightly closed, in a dark place at room temperature, away from direct sunlight, which can accelerate fading over time.
When working with larger batches, it is worth testing the dye on a small sample first, since the final shade depends on the acidity and clarity of each specific formula. Compatibility with most water-based systems makes this pigment a practical choice for labs running several product lines in parallel.
Scarlet marbled bath bomb
Baking soda 250 g
Citric acid 120 g
Cornstarch 60 g
Carrier oil 30 ml
Scarlet liquid pigment ultra 3 ml
Fragrance oil 10 ml
Mix the baking soda, citric acid and cornstarch thoroughly in a dry bowl until no lumps remain. Combine the carrier oil with the fragrance oil separately, then slowly incorporate it into the dry mixture while stirring constantly to avoid premature fizzing. Divide the mixture into two parts, tint one part with the scarlet pigment, then layer both portions into a mold, pressing firmly to create a marbled effect before letting it dry for 24 hours at room temperature.