In this bite-size review we use our specialist knowledge to provide a general background understanding of sunscreen testing methods.  TRI does not offer SPF testing, but, as you will see, we can assist formulators with other very useful tests.

The 24th International Hair-Science Symposium, HairS’25, was held on 25-27th June 2025, in Augsburg, Germany.  TRI presented three oral presentations: Understanding the Consequences of Heat Styling: The Penetration of Sebum-Mimicking Compounds; Assessing Hair Bleaching: A Simple Approach Using Light Microscopy; and Bridging Consumer Perceptions and Technical Measurements: Assessing Hair Straightness and Alignment with Optical Imaging.

The UK Society for Cosmetic Science (SCS) held its Annual Conference in London, on July 2-3, 2025.  Murielle Mason from TRI presented ‘Bridging Consumer Perceptions and Technical Measurements:  Assessing Hair Straightness and alignment with Optical Imaging’. 

North America’s premier ingredients & formulation event, Suppliers’ Day, took place on Tuesday 3rd June and Wednesday 4th June. Members of the TRI team were present at Booth 243 talking about the services, educational activities and research activities that TRI provides. There was also a chance for visitors to the booth to test their hair quality using our portable infra-red spectrometer, and to look at their scalp health with a portable microscope.

Most procedures for achieving glass hair recommended use of a heat protection spray before styling, as well as applying hair serum conditioning products and a hold spray afterwards. While the efficacy of heat protection sprays is a contested area, the use of conditioning products prior to straightening and a hold spray straight afterwards are likely to be significant contributors to the ‘glassiness’ of the hair after treatment. 

The TRI ‘Fundamentals of Hair Science & Hair Claims Course 2025’, took place on May 13th and 14th, 2025. The hybrid event attracted 130 attendees, most of whom attended on-line, and 20 of whom attended both days in person.

Hair fatigue testing has rapidly grown, from a niche topic, into a mainstream technique for hair claims testing. With this fast rise in popularity has come a demand for better, consumer validated protocols, and a need to understand, more fully, what the data are telling us about hair breakage.

North America’s premier ingredients & formulation event, Suppliers’ Day, will take place next week on Tuesday 3rd June & Wednesday 4th June.

The long-anticipated TRI Academy is up-and-running, hosting a broad range of educational articles and training opportunities. It’s free...

The Martha Schwarzkopf Award , supported by Henkel, recognizes long-term contributions to hair science by women. This year, alongside the...

Registrations will soon close for the popular TRI ‘Fundamentals of Hair Science & Hair Claims Course 2025’, which will take place on...

The ‘ Symposium on the Fatigue Testing of Hair ’ will take place on Thursday 15th May .  Today we are pleased to announce that Dr Nawel...

Dr Lynsey McColl, Managing Director of Select Statistics (UK) will be speaking about Survival Analysis with Applications in Fatigue Testing.

This short article will outline what UV light is, how it causes hair damage, technologies available for mitigating this damage, and the test

Scalp spas are extremely popular in Japan, with treatments such as scalp facials, exfoliation, and microcirculation therapies available.

We are pleased to announce that the TRI Website ( https://www.triprinceton.org ) was updated and refreshed on Monday 17th March. The site...

The TRI ‘ Fundamentals of Hair Science & Hair Claims Course 2025 ’ will take place on May 13-14; Immediately ahead of the ‘ Symposium on...

More speakers have been announced for the ‘Symposium on the Fatigue Testing of Hair’, which takes place on Thursday 15th May.

TRI provides fully paid, on-site and on-line internship positions to students from the US and around the world.

An in-depth study that considers the kinetics of water sorption into hair.