Some chemicals that we need to take note when purchased for the skin care product. Previously I also didn't really caution about these chemicals that might harmful to my skin. Until oneday my friend who work in chemistry industry has alerted me about these. Thus, I would like to share this to all of you. Actually, there are some key compounds that should be on your watch list. Here is a list of some of the common carcinogens and suspected carcinogens you are likely to encounter in traditional product formulas:
Benzyl Acetate
Butylated Hydroxyanisole (BHA)
Butylated Hyroxytoluene (BHT)
Butyl Benzylphthalate
Coal Tar Dyes (or dyes labeled “Lakes”)
D&C Red Dyes Numbers 2, 3, 4, 8, 9, 10, 17, 19 & 33
D&C Green 5
D&C Orange 17
FD & C Blue 1 & 2
FD & C Green 3
FD & C Red 4 & 40
FD & C Blue 1, 2 & 4
Diaminophenol
Disperse Blue 1
Disperse Yellow 3
Nitrophenylenediamine
Crystalline Silica
Diethanolamine (DEA)
Dioctyl Adipate
Formaldehyde
Glutaral
Hydroquinone
Methylene Chloride
p-Phenylenediamine
Phenyl-p-phenylenediamine
Polyvinyl Pyrrolidone
Pyrocatechol
Saccharin
Talc
Titanium Dioxide

You won’t find the following compounds listed as ingredients on product labels. Instead, they are thought of as 'hidden' hazards. This list includes chemicals that may exhibit carcinogenic properties under certain conditions; hazardous materials that are often found “hiding” in other listed ingredients and chemicals that easily combine with other common substances to create carcinogens:
Aflatoxin (found in peanut oil and flour)
Arsenic and Lead (found in coal tar dyes, polyvinyl acetate, PEGs or polyethylene glycols)Chloroaniline (found in chlorhexidine)
Crystalline Silica (found in amorphous silicates)
DDT, Dieldrin, Endrin and other organochlorine pesticides (found in lanolin, hydrogenated cottonseed oil, and quarternium-26)
DEA or diethanolamine (found in DEA-cocamide/lauramide condensates, quarternium-26)
1,4-Dioxan (found in ethoxylated alcohols, including PEGs, oleths, choleth-24, ceteareth-3, laureths, polysorbate 60 & 80, and nonoxynol)
Ethylhexylacrylate (found in acrylate and methacrylate polymers)
Ethylene Oxide (found in PEGs, oleths, ceteareth-3, laureths, polysorbate 60 & 80, and nonoxynol)
Formaldehyde (found in polyoxymethylene urea)
BromonitrodioxaneBronopol or 2-bromo-2-nitropropane-1,3-diol)
DEA or DiethanolamineDEA-Cocamide, Lauramide & OleamideMetheneamineMorpholinePadimate-O or octyldimethyl para-amino benzoic acid)Pyroglutamic AcidTriethanolamine (TEA)
TEA-Sodium Lauryl Sulfate
Bronopol
Diazolidinyl Urea
DMDM-Hydantoin
Imidazolidinyl Urea
Metheneamine
Quarternium-15
Sodium/Hydroxymethylglycinate