The Chemical Guide to Body Care Formulation: Whipped Lipids, Lotions & Scrubs

Shea butter contains stearic, oleic, and linoleic triglycerides that crystallize into multiple polymorphic states. If cooled improperly, shea forms coarse, grainy crystals (beta form) that feel sandy on the skin. Renaud utilizes a proprietary dual-stage cooling and mechanical aeration protocol: holding the lipid matrix at precise temperature plateaus while whipping to lock the butter into the silky, stable beta-prime crystal form, guaranteeing a melt-on-contact cloud texture that remains smooth at room temperature.

Body lotions require rapid absorption so clients can dress immediately after application without fabric staining. Renaud formulates oil-in-water (O/W) emulsions utilizing cetearyl olivate and sorbitan olivate (derived from olive oil) paired with organic aloe vera leaf juice and vegetable glycerin. This delivers immediate cutaneous hydration while depositing a microscopic, non-greasy lipid shield.

Exfoliating polishes present a unique chemical challenge: crystalline sucrose (cane sugar) or sodium chloride (sea salt) will dissolve if excess water is present, or settle to the bottom of the jar if the oil matrix lacks yield stress. Renaud creates an anhydrous suspension using cold-pressed botanical oils gelled with plant waxes and unrefined beeswax. The crystals remain uniformly suspended from the top to the bottom of the jar without oil separation.