Red 40 is a synthetic coloring used in the confectionery industry in the US. Due to natural trends, Carmine has emerged as a healthier alternative.
Trends in Natural Red Colors for Food Product Development
Food Color Experts Declare Red as 2021's Color of the Year, 2021-01-21
Lycopene color replacement for Carmine available for food & beverages, 2013-07-10
Natural Colors – BIOCON COLORS
The Crazy Sources of Red Food Dye, by Sam Westreich, PhD, Sharing Science
Cochineal, a red dye from bugs, moves to the lab
Applications of food color and bio-preservatives in the food and its effect on the human health - ScienceDirect
Exploring the Carmine Industry in the USA: Nature's Crimson Gold
Chromologics Raises €12.6M for Fungus Alternative to Carmine and Red 40 Food Colorings - vegconomist - the vegan business magazine