ExpiredHKSCC Workshop – Master Class I

Topic: Waxes – Their chemistry and applications in cosmetics

Date: 12th September, 2019 (Thur)
Venue: Yeung Kin Man Academic Building, City University of Hong Kong
1st session (15:00 – 16:30) – Classroom B5-208
2nd session (17:00 – 18:30) – Classroom B5-311
Time: 15:00 – 18:30
Ticket: HKSCC member HKD300; non-member HKD450; City U students: Free

Speaker: Mr. Steven L. Puleo
Title: Vice President of R&D (Koster Keunen Inc.,)
Chairman of Connecticut Society of Cosmetics Chemists (2009, 2014)

Topic: Waxes – The chemistries and applications in cosmetics

Time Content / activities
 15:00 – 15:30   General introduction of waxes and their chemistries

  • Chemistries and structures
  • Gel lattice theory
 15:30 – 16:30   What can we do if the traditional waxes cannot completely fulfill our demands:

  • Physical means?
  • Synthesis?
  • Chemical modifications of natural waxes?
 16:30 – 17:00   Coffee break + trial of wax samples / prototypes
 17:00 – 17:15   The applications of waxes: cosmetics, food, pharmaceutical, ink, car washing, etc
 17:15 – 18:15   The applications of waxes in 

  • Sunscreens (Organic / physical sunscreens; Benefits of using waxes in sunscreen)
  • Haircare (Common conditioning agents; Benefits of C-22 conditioning agents in haircare)
  • Skincare (Traditional role / image of waxes in skincare; benefits of using ‘new’ waxes in skincare)
 18:15 – 18:30   Q&A

Speaker’s Information

Steven L. Puleo

Academic background. BS in Chemistry (organic) from the University of Stony Brook New York and Graduate School in Chemistry/Marine Sciences at Stony Brook NY.


Steven Puleo is a wax, lipid, polymer and organic chemistry technology expert and has over 30 years of experience in application and prototype development in the areas of cosmetics, pharmaceutical, ink, house hold, coatings, automotive, textile and candles. He began his career as a research chemist and steadily grew into leadership roles and now helps to drive the growth of Koster Keunen with developing new applications and marketing new raw materials on an international level. Mr. Puleo is respected for his technical expertise and market savvy.

He has provided training and marketing education to global distributors and sales agents. Mr. Puleo’s current research includes new molecule synthesis for raw material development and new application technology. He has had multiple publications in various disciplines that include wax chemistry and sunscreen enhancement.



  • 20190912MasterClassI
    September 12, 2019
    3:00 pm - 6:30 pm
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