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SUNJIN NEWSLETTER

선진 뷰티 사이언스는 지난 40년을 넘어서 앞으로 더욱 더 발전하며 우리 나라의
화장품 및 화학 산업의 발전에 기여하리라 믿습니다.
 
Subject : 20_04_Updates to the clinical test service from ISO24444 revision
Date : 2020-04-19
 
 
SUNJIN NEWSLETTER
Updates to the clinical test service from ISO24444 revision
by Sung-Ho Lee
April 2020, NO.241
 
Dear everyone,
SUNJIN is now providing “free clinical preliminary test” for sun protection with new ISO24444 edited last December.
 
 
In edited version, they revised the definition of Minimal Erythema Does (MED), selection of participants, application procedures, reference standard sunscreens, evaluation method and test reports were provided. Please see more details on the changes made in the edited version through following pages.
 
 
  Editions
 
 
1. The definition of the minimal erythema dose (MED)
 
Before After
  MED (minimal erythema dose)
  : First noticeable erythema found with minimal
     UV radiation.
  MED (minimal erythema dose)
  : 50 % of erythema found with minimal UV
     radiation.
 
2. The selection of participants
 
Before After
  Standard for the selection of participants
: Participants need to have ITA° value above 28° and they can be tested for skin type I, II, III.
 
  55 < ITA value Type 1
41 < ITA value Type 2
28 < ITA value Type 3
10 < ITA value Type 4
SPF is Measureable
PA is Measureable
   
  Standard for the selection of participants
: Average of ITA° value for total participants need to be between 41°~ 55° with average skin type of II.
 
  55 < ITA value Type 1
41 < ITA value Type 2
28 < ITA value Type 3
10 < ITA value Type 4
SPF is Measureable
PA is Measureable
   
 
3. The additional standard samples for SPF measurement
 
Before After
Estimated Value Reference sunscreen
formulation
SPF < 20 P2, P3, P7
SPF ≥ 20 P2, P3
Estimated Value Reference sunscreen
formulation
SPF ≤ 24 P2, P3
25 < SPF ≤ 5 0 P2, P3, P5, P6
50 ≤ SPF P2, P3, P8
  Previously, only P2, P3, and P7 standard samples were available to measure below or above SPF 20, but now P5, P6, and P8 standard samples are added in order to measure more precisely for the samples above SPF 25.
 
4. The application procedures
 
After
  Previously, application methods were only available for liquid and powder types, but now they provided application method for various types of samples including Lotion, Cream, Liquid, Stick, Spray, and Powder with appropriate flow chart.
 
5. The evaluation methods
 
After
Example
  They classified with different grades depend on the level of erythema formed and they provided appropriate evaluation methods for each different grade with examples of each. In addition standardized for rejection as well.
 
6. Additional data for a test report
 
Before
After
  Test report will be including intensity increment value and following reason for a rejection.
 
 
Free clinical test service by SUNJIN
 
SUNJIN provides free clinical test service for anyone who uses SUNJIN materials in their formulation so please feel free to use the service.
 
   Free education on SPF/PA clinical test
 
 
 
   Free UV In-vivo/ In-vitro clinical test
 
 
 
Service Features
1. Free
SUNJIN customers can apply the service for free
2. Fast
Generally it takes 2~3 weeks to receive results
3. High reliability
More than 700 cases per a year
Annually calibrate results with external agencies
 
 
If you have any concerns or question on our clinical test service, please contact through following information. Thank you.
   Areum Jeong
      -  E-mail : sales1@sunjinbs.com
      -  Tel : +82 31 364 0721
 
 
 
  COPYRIGHT(C)2018~SUNJIN BEAUTY SCIENCE Co.,Ltd.ALL RIGHTS RESERVED
www.sunjinbs.com | TEL : 82-31-494-6322(300)
E-MAIL : sungholee@sunjinbs.com
   
 
 


         
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