Allow me to clear up your misunderstanding/misinformation. While there are 100's of certified combinations and types of color batches, there are fewer than 10 synthetic dyes for color, and only 2 blues are currently approved for human use. Blue #1 is much more likely choice, but it could be Blue #2. Natural tints or novel tints would require special use permission. All of the testing of dyes for safety have been done in healthy adults, but the demonstrated problem with enteral exposure of blue dye is in UNHEALTHY SEPTIC ADULTS.