Glossary

Coils

to form rings, spirals, etc.; gather or retract in a circular way

Curls

to form into coils or ringlets, as the hair.

Keratin

a fibrous, structural protein that is the principal constituent of hoofs, nails, claws, talons, bills, horn, hair, feathers, etc., and that is found in the outermost layers of skin.

Silicones

properties are determined by the organic groups attached to the siliconatoms, and that are fluid, resinous, rubbery, extremely stable in high temperatures, and water-repellent: used as adhesives, lubricants, and hydraulic oils and in electrical insulation, cosmetics, etc.

Sulfates

a salt or ester of sulfuric acid.