What is Quaternium-15 ?

Quaternium-15 is a quaternary ammonium salt used as a preservative in many cosmetics and industrial substances. It acts as a formaldehyde releaser. It can cause contact dermatitis, a symptom of an allergic reaction, especially in those with sensitive skin, on an infant's skin, or on sensitive areas such as the genitals.
It can be found under a variety of names, including: Dowicil 75; Dowicil 100; Dowco 184; Dowicide Q; 1-(3-Chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride; N-(3-chloroallyl) hexaminium chloride; hexamethylenetetramine chloroallyl chloride; 3,5,7-triaza-1-azoniaadamantane; 1-(3-chloroallyl)-chloride.

Safety concerns 

Quaternium-15 is an allergen, and can cause contact dermatitis in susceptible individuals.^[1] Many of those with an allergy to quaternium-15 are also allergic to formaldehyde. Allergic sensitivity to quaternium-15 can be detected using a patch test.^[2] It is the single most often found caue of allergic contact dermatitis of the hands (16.5% in 959 cases)^[3]

** Taken from www.wikipedia.com
So, next time you're out and about shopping for skin care for your family, take into consideration the above mention ingredient.  Is this really an added chemical that you need in your daily skin care routine?

Educate yourself!  You have the choice, make it.