Design of lamellar gel network emulsions for personal care and cosmetics applications

Learn at your own pace from Ricardo Diez, Ph.D. is currently an Adjunct Professor at Rutgers University

On-Demand Access

Design of lamellar gel network

This on-demand training is designed to fit into your busy schedule. On-demand access includes access to recordings, slides, and course materials for 30 days.

This course will provide a detailed overview of the science and technology of these commercially important materials. The course will highlight the lamellar gel network (LGN) model developed by our course instructor Ricardo Diez and demonstrate its use to design key aspects of cosmetic and personal care emulsions, from sensorial properties to stability and scale-up, as well as delivery of actives.


Non-Members: $549

AOCS Members: $479

AOCS Student Members: $169

One connection per registration, please.

*SCC members receive member pricing via a discount code provided by SCC. Please contact SCC if you have not received your code.

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Who Should Attend?

This will be a fairly technical course, best suited for professionals with at least some basic knowledge of emulsion chemistry and personal care/cosmetic formulation. However, in addition to formulators, quality control chemists, regulatory scientists, and product development professionals will find many new insights within the course materials. As well, any sales and marketing professionals who have a scientific background should find the course beneficial to their current positions.

Course Outline

The physical chemistry of the key raw materials used to make emulsions

  • Physical chemistry of main categories of emulsifiers
  • Discrete, oligomeric, and polymeric emulsifiers.
  • Structuring agents: crystalline vs. amorphous. Performance differences
  • The Water Phase: Free vs trapped water. Differences and practical implications
  • The Oil Phase: Carbon and silicone-based emollients

Introduction to the LGN model

  • Overall description of the LGN Model. What it is, and what it is not.
  • Application of the model to formulation, including design of sensory properties, stability and scale-up of emulsions
  • The LGN model vs the HLB Griffin model.
  • The LGN Model vs. emulsions with ‘liquid crystals”
  • Seeing and Feeling the LGN - experimental techniques to build networks with different properties
  • Instrumental techniques for characterization: XRD, DSC, Microscopy, TGA, Polarimetry

Formulations - controlling the sensorial aspects of emulsions

  • Gel vs crystalline formulations, Model formulations, Intermediate formulations, and Advanced formulations for multiple performance attributes
  • Formulations for Delivery of Actives – delivery of water vs non-water soluble actives, how to deposit the active on the right spot of the skin, and quantifying the delivery of the active
  • Scale-up – From lab to pilot plan to production under the guidance of the LGN model, and Avoiding product differences in the scale-up process
  • Stability – How the LGN model predicts product stability, Stability testing results vs actual long-term stability, Physical vs chemical stability, and Monitoring stability with instrumental techniques

About the Instructor

Ricardo Diez, Ph.D

Ricardo Diez, Ph.D. is currently an Adjunct Professor at Rutgers University where he teaches two cosmetic science courses in the Master of Business and Science.

He has more than four decades of experience in consumer product companies and raw material manufacturers in the cosmetic industry. (Procter and Gamble, Chanel, Miranol, Stepan and Witco.) He has direct, hands-on experience in the synthesis, identification, and manufacturing of many of the materials used to make emulsions.

He has spent many years developing and investigating emulsion using the Lamellar Gel Network Model with a variety of identification techniques. He also has practical experience in the development and use of nano and microemulsions.

This course is a collaboration with the Society of Cosmetic Chemists (SCC).

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