Compound colorant, such as β-carotene emulsion, has several advantages, including:

Increased stability: Compound colorants have a longer shelf life and are more resistant to heat and light compared to single pigments.

Improved solubility: β-carotene emulsion is more easily dissolved in oil-based products compared to the crystalline form of β-carotene, making it a more practical option for use in food and cosmetic products.

Enhanced bioavailability: Compound colorants such as β-carotene emulsion can improve the body's ability to absorb and utilize the nutrient compared to the crystalline form.

Versatility: Compound colorants can be easily incorporated into a variety of food and cosmetic products, including dairy products, bakery goods, and lotions.

Increased safety: β-carotene is a natural, non-toxic pigment, and is generally considered safe for use in food and cosmetic products.