According to FreeDictionary.com polymers are " Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule". So, what is the big deal for people creating their own products or who are consumers? Polyquaterniums are a great inclusion in hair and skin care products since the desired qualities of merchandise (such as moisturizing and conditioning) are enhanced by this category of ingredient. This happens due to the cationic (positive) nature of polyquaterniums that will help to reduce the harshness of surfactants that helps to dry out hair.
Polyquaterniums, unlike cationic conditioners such as BTMS, can be mixed with anionic surfactants to serve as the conditioning agents that are used in shampoos that condition as well.
Like conditioners such as BTMS it will rest on top of the hair strand and form a film that increase the moisture and manageability to hair by making it easier to comb wet or dry. Static that create frizz and fly away hair is reduced with the addition of polyquaterniums. This is going to reduce breakage that is caused by the friction of combing tangled or dry hair. Some polyquaterniums will work as humectants to lock in moisture within the hair strand. Polyquaterniums are used as a replacement for silicone by those that are looking to avoid heavy buildup in the hair.
The skin is moisturized by polyquaterniums and is left with the sleek feeling that can is experienced by using some feminine shaving products or items that read "sleek" or "glide" on the label. Honeyquat and Polyquat are very common polymer for homecrafters due to its availability from suppliers. Note the number in the title of the polymer which indicates the origination of it. For example, Polyquat 7 is derived from diallylmethyl ammonium chloride. The list of polyquaterniums is vast and can be found at Wikipedia under the title Polyquaternium.