Soap and detergent formulations combine several distinct chemical roles — cleaning surfactant, builder, alkali, and functional additive — and most formulators source each from a specialist supplier rather than one all-in-one product.
Primary Surfactants
SLES and SLS are the most common anionic surfactants in detergent and personal-care formulations, chosen for foam and cleaning power — see our guide on SLES vs SLS. AOS (Alpha Olefin Sulphonate) is another widely used anionic surfactant, particularly in bar soap and liquid detergent formulations. LABSA precursor (Acid Slurry) is the base material sulphonated to make Linear Alkyl Benzene Sulphonic Acid, a cornerstone surfactant in detergent powder manufacturing.
See Acid Slurry (LABSA Precursor) and AOS Liquid (38%).
Secondary Surfactants and Foam Boosters
Cocamidopropyl Betaine and Coco Diethanolamide (CDEA) are common secondary surfactants used to boost foam, improve mildness, and adjust viscosity in liquid formulations, especially personal-care and dish-wash products.
See Cocamidopropyl Betaine and Coco Diethanolamide (CDEA).
Builders and Alkalis
Sodium Tripolyphosphate (STPP) and Sodium Hexametaphosphate (SHMP) act as builders in detergent powder formulations — softening water and improving cleaning efficiency of the primary surfactant. Soda ash and caustic soda are used in bar-soap saponification and general alkalinity adjustment.
See Sodium Tripolyphosphate (STPP) Technical.
Functional Additives
Optical brighteners (Tinopal, CBS-X) make washed fabric appear whiter/brighter; glyceryl monostearate (GMS) is used as an opacifier and pearlizing agent in liquid formulations; silicon defoamers control excess foam in process and in-use conditions where foam is a nuisance rather than a benefit.