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FD&C Yellow No. 6 Aluminum Lake

Excipient (pharmacologically inactive substance)

Medically reviewed by Last updated on Feb 1, 2021.

What is it?

FD&C Yellow No. 6 Aluminum Lake is a color additive used for drug dosage forms such as tablets and capsules. It is also approved for use in foods and cosmetics. FD&C Yellow No. 6 Aluminum Lake imparts a reddish-yellow color to medicinal dosage forms.

FDA performs regulatory review for color additives used in foods, drugs, cosmetics, and medical devices. FD&C specifies the color is approved for use in food, drugs and cosmetics. FD&C Yellow No. 6 Aluminum Lake may be safely used as a color additive when following FDA specifications.

To form lake colors, straight dyes (such as FD&C Yellow No. 6) are mixed with precipitants and salts. Lakes may be used as color additives for tablet coatings due to their stability.[1][2]


[1] Electronic Code of Federal Registers. Title 21: Food and Drugs. Part 74. Listing of color additives subject to certification. Subpart B. Drugs. Accessed online October 19, 2011.;sid=c387334e82029536a53dde1171ba5481;rgn=div5;view=text;node=21%3A1.;idno=21;cc=ecfr#21:

[2] U.S. Food and Drug Administration. Color Additives: FDA's Regulatory Process and Historical Perspectives. Accessed 10/20/2011.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.