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Welcome to the home of SwiftCraftyMonkey Formulating Inc.! Join Susan as she obsesses about cosmetic chemistry and other things (some possibly related to monkeys)! Here you’ll find over 5,000 posts and formulas written over the past 16 years for everything from lotions, creams, and body butters to hair care products to fancy facial products filled with actives and cosmeceuticals! Enjoy the site without distractions – no ads, pop ups, sponsored posts, affiliate links, “one weird tricks” – all supported by readers like you.

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Drag

This is when something takes effort to spread on our skin, like a lotion bar with too much beeswax or a lotion with loads of butters or stearic acid.

Related Articles:
  • Questions and answers about shampoo bars: The master list (updated November 11, 2023)
  • Q&A: Creating conditioners that add volume and retain curls? Using conditioning agents that won’t weigh down hair – cationic polymers
  • Defining some cosmetic chemistry terms: Spreadability, play time, cushion, drag, slip & glide, and melt point
  • Formulating conditioners: Thickening a leave in conditioner
  • Why is the cosmetic formulator concerned with solubility, viscosity, surface tension, contact angles, wetting, refractive index, specific gravity, spreadability, play time, cushion, drag, and melting point?

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Welcome to May 2025

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Questions & answers about shampoo bars! Updated July 19, 2022

Questions & answers about conditioner bars (updated July 18. 2022)

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