odour efficacity testing on deodorant and/or anti-perspirant

ODOUR EFFICACITY TESTING
ON DEODORANT AND/OR ANTI-PERSPIRANT
Odournet Group
•  is the largest specialist consultancy
exclusively dedicated to environmental
odour management & odour assessment
•  has developed a portfolio of thousands of
studies over 30 years in all odour relevant
sectors of the economy
•  employs over 60 sensory specialists,
operates 6 accredited olfactometry
laboratories, one high resolution
GC-MS laboratory and a dedicated
facility for testing odours of products and
materials
Sensory Expertise delivered worldwide
Generalities on odours
How to evaluate an odour ? :
„  Odor concentration,
„  Intensity,
„  Hedonic tone,
„  Description….
Efficacity measurement of deodorant / AP
2 Implemented methods at Odournet:
A : Expert panel sniffing of pads worn by panelists under the armpit area
B : Self-evaluation of panelist with carry information via a SMS system
Method A: Expert panel sniffing of pads worn by panelists
Which application ? Application in-vivo with pads
On who ? Selected panelists
Which measurement ? Sniffing of pads in glasses
By who ? Selected and trained sniffers
When ? At a defined frequency until 24h or 48h
Selection and training of sniffers
Based on ASTM-1207, EN 13725:2003 and VDI 3382 part 1
n-Butanol and artifcial sweat references using on a dynamic olfactometer
Grading of sweat odour intensities
Odour
Intensity grade
No sweat odour
0
Very weak sweat odour
1
Weak sweat odour
2
Distinct sweat odour
3
Strong sweat odour
4
Very strong sweat odour
5
Exemple of working process
Day 1
Reference test of underarm smell
without active agent
Day 2
1st day of test with active agent
T=0
T=0
Standard washing procedure
Standard washing procedure
Insertion of inlay pad underarm
Preparation of active agent and
placebo
T + 4h
Insertion of inlay pad underarm
Inlay pad are removed
T + 4h
Intensity measurements by
sniffers
Panelist qualified
YES? NO?
Inlay pad are removed
Intensity measurements by
sniffers
Day 3
2nd day of test with active agent
T + 20h
Panelists put pads to the
underarm
T + 24h
Inlay pads are removed
Intensity measurements by
sniffers
Evaluation
5 4,5 4 3,5 Intensité 3,5 3 2,5 2 1,5 1,1 1 1,5 0,5 0 REFERENCE PANEL 4H WITH ACTIVE AGENT 24H WITH ACTIVE AGENT Method B: Expert panel sniffing of pads worn by panelists
Which application ? Application in-vivo
On who ? Selected panelists
Which measurement ? Self-evaluation
By who ? Panelists themselves
When ? At a defined frequency until 24h or 48h
Exemple of working process
Day 1
Reference test of underarm smell
without active agent
Day 2, 3…
T=0
T=0
Standard washing procedure
Standard washing procedure
Preparation of active agent and
placebo
T + 4h
Intensity measurements
Panelist qualified
YES? NO?
Each 2 hours, panelists have to
answered to a SMS: “How
intense is the smell of your
deodorant?”
Thank you !
Contact:
Charlotte TOURNIER
ctournier@odournet.com
3 allée de Bray
35 510 CESSON SEVIGNE
FRANCE
t: +33 2 99 50 17 95
mob: +33 6 15 91 27 58