Food allergies send over 30,000 people to the emergency room each year. Dr. Suzanne Teuber of the University of California, conducted a study of 379 patients with food allergies and found that as many as 5% had an allergic reaction after kissing someone who eaten a food which they were allergic too. The risk is even greater on February 14th because more kissing occurs on Valentines Day than any other day of the year. If you have severe food allergies you really do need to be careful about accidental cross-contact. Here’s what you should watch out for:
Top 8 food allergies
- Peanuts
- Tree nuts (walnuts, almonds, etc.)
- Fish
- Shellfish
- Eggs
- Milk
- Soy
- Wheat
Question of the week
Krista wants to know how she can tell if the dyes in her lipstick are natural (as the product label claims) or really synthetics.
A Quick History of Color Certification
The Food, Drug and Cosmetics Act of 1938 required that each individual batch of organic colors has to be analyzed to ensure they met the standards set at the time. Despite that, In the 1950s several kids fell ill after eating high levels of color additives. This lead to the Color Additives Amendments of 1960 which had even stricter rules. Hence the name “certified” color meaning each batch has to be certified.
Naming colors: Colors vs dyes vs pigments
We use the term “color” or “colorant” as the broadest descriptive term.
Dyes are soluble in oil or water
These are NOT to be confused with hair dyes which are NOT colors. They don’t impart product to the color and have an entirely different chemistry.
Pigments are not soluble in either
A lake is one example of a pigment where a water soluble dye is put onto an insoluble substrate. That’s how you make a water soluble color useable in lipstick or eyeshadow where moisture would cause the color to run.
Where do colorants come from?
Two types: Organic and Inorganic
Organic can be synthetic or vegetal
Organic synthetic colorants
Originally called “coal tar” or aniline colors because derived from coal sources like aniline.
Naming organic colors (aka “certified” colors)
- Drug and Cosmetic (D&C)
- External Drug and Cosmetic (Ext. D&C)
- Food, Drug and Cosmetic (FD&C)
Organic vegatal colors
- Beta carotene (from carrots and squash)
- Henna leaves (from plant leaves)
- Carmel color (from heating sugars)
- Carmine (from crushed insects)
If these are used as colorants you’ll see these names on the ingredient list.
SO that’s organic synthetic and organic vegetal. What about inorganic?
Inorganic colors
These generally come from minerals – These are not soluble in anything and so are considered safer. They don’t have to be certified but they do have to meet purity requirements for example, for heavy metals. Their use is limited to makeup, as most of the pigments are.
Iron oxides
Synthetically processed iron.
Think rust: Yellow, brown, reddish,
Carbon black
Burn a natural gas flame onto an iron surface or my favorite calcination of animal bones.
Black
Chromium oxide green
Acid washed cromate.
olive green and blue green
UltraMarines
Made by melting sulfur, soda ash, china clay, and charcoal pitch.
Blues and pinks
Bismuth oxychloride
A white pearling agent
Metallic colors
Such as aluminum, copper or bronze
Other powders
Like talc, zinc oxide, kaolin are on the colorant list but typically used as opacifying or bulking agents.
The Beauty Brains bottom line
BY DEFINITION the FD&C and D&C designated name means the colorant is synthetic, not natural.
