FD&C Yellow #5.
A soluble water based liquid colorant approved for use in food, drugs, and cosmetics.
A pale custard yellow. Clear mediums remain clear with FD&C water based colorants, opaque bases become more pastel.
Recommended useage is about 3 to 5 drops per pound, depending on color shade desired.
Tartrazine is known to be stable under varying pH conditions and light.
Recommended for bath and body applications such as melt and pour soap bases, lotion making, bath salts, etc. Not recommended in oil based products or candles. Individual testing recommended in cold process and hot process soap making.