Ci 14720

Deep within the world of synthetic colorants, CI 14720 (also known as Acid Red 14 or Carmoisine) is a water-soluble, azo dye derived from coal tar. Chemically, it belongs to the azo dye family, characterized by the presence of one or more azo groups (-N=N-) that link aromatic rings, giving it its vibrant red hue. While it is primarily manufactured synthetically for consistency and safety, it has historical roots in early synthetic dye chemistry from the late 19th century. In its pure form, it appears as a dark red powder that readily dissolves in water, making it a versatile choice for tinting a wide range of cosmetic formulations.

In cosmetics, CI 14720 functions exclusively as a colorant, imparting a bright red to pinkish-red shade to products. Its mechanism is purely physical—it absorbs and reflects specific wavelengths of visible light, creating a distinct color without chemically reacting with the skin. Formulators favor it because it is highly stable in water-based systems and can be easily combined with other dyes to achieve custom shades. Typical concentrations range from very low (0.001% to 0.1%) to avoid staining or irritation, though exact levels depend on the desired intensity and the product type (e.g., lipsticks, blushes, or bath products).

The primary benefit of CI 14720 is its ability to deliver consistent, vibrant color that remains stable under normal storage conditions. It is particularly effective in creating long-lasting tints in lip products, where it can help maintain color payoff throughout wear. For blushes and eyeshadows, it provides a bright, even hue that blends well with other pigments. However, evidence for its efficacy is purely observational—there are no clinical studies claiming skincare benefits, as it serves no active role beyond coloration. It is valued for its affordability and batch-to-batch consistency, which is critical for mass-produced cosmetics.

CI 14720 is generally considered safe for use in cosmetics at regulated concentrations, but it is not without limitations. It is not recommended for sensitive or compromised skin due to its potential to cause allergic reactions or irritation, particularly in individuals with a history of sensitivity to azo dyes. It is compatible with most other ingredients, including emollients, humectants, and preservatives, but may fade or shift color in the presence of strong oxidizing agents or extreme pH levels. Skin types with oily or normal barriers typically tolerate it well, while those with eczema or rosacea should exercise caution. Regulatory bodies like the EU and FDA have approved it for cosmetic use, though some countries restrict its concentration in leave-on products.

When scanning ingredient lists, you will find CI 14720 listed by its Color Index (CI) number rather than a common name—a standard practice for all certified colorants. Interestingly, this same dye is used in the food industry (as E122) to color candies and beverages, though cosmetic-grade versions are held to stricter purity standards. In our database, it appears in 269 products, ranging from drugstore lipsticks to niche bath bombs. A fun fact: despite its synthetic origin, it is sometimes confused with natural red pigments like carmine, but CI 14720 is entirely vegan and cruelty-free by nature of its manufacture. If you see it in a product, expect a bright, stable red tint that performs reliably—just be mindful if your skin is prone to reactions.