06-6531-1881
LSL offers efficacy/usefulness studies of cosmetics/beauty equipment/food
to support your product development.
- Type of study
 - Animals
 - Duration of the study
 
Laser-induced choroidal neovascularization (CNV) model
- 
              
Mice or rats
Approx. 2 months
 
Intraocular pressure (IOP) measurement
- 
            
Normotensive IOP models
beagles or rabbits
Approx. 1.5 months
 - 
            
Ocular hypertension models
rats
Approx. 1.5 months
 - 
            
Laser-induced ocular hypertension model
ー
Approx. 1.5 months
 - 
            
Water loading-induced ocular hypertension model
Rabbits
Approx. 1.5 months
 
Water loading-induced retinal ischemia model
- 
              
Rats
Approx. 3 months
 
Light-induced retinal degeneration model
- 
              
Rats
Approx. 3 months
 
Dry eye model
- 
              
Rabbits
Approx. 1.5 months
(winter only) 
Bioequivalency tests (ophthalmic solutions, etc.)
- 
              
-
-
 
Efficacy studies of cosmetics/beauty equipment
※Studies measuring TEWL and those using skin surface hygrometers and sebumeters are also available.
            - 
            
Whitening studies
Brown guinea pigs
Approx. 2.5 months
 - 
            
Wrinkle-improving studies
Hairless mice (wrinkle model)
Approx. 6 months
 - 
            
UV light-induced skin stress inhibitory studies
Brown guinea pigs
Approx. 3 months
 - 
            
Hair growth studies
C3H mice
Approx. 3 months
 - 
            
Rough skin studies
Mice (rough skin model)
Approx. 2 months
 
Efficacy studies of food
- 
            
Efficacy studies for obesity
Zucker rats (obesity model), etc.
―
 - 
            
Palatability studies of pet food
Dogs or cats
Long term only
 
In addition to these studies, LSL challenges various studies. Please feel free to consult us.
Clinical studies, including patch tests (safety tests), usage tests and sensory analysis, are conducted in Japanese subjects. Studies in a small number of subjects (TEWL, moisture, sebum, etc.) are also available.
- Type of study
 - Number of subjects
 - Duration of the study
 
Human patch test(24/48 hours)
- 
            
20/40
Approx. 1 month
 
Moisture test
- 
            
8 or more
Approx. 1 month
 
Stinging test(for labeling of cosmetics)
- 
            
6
Approx. 1 month
 
Sensory analysis
- 
            
5
―
 
※Please consult us for other usage tests, sensory analysis, etc.
※Please feel free to consult us regarding details, costs and duration of the studies (free quotation)
Useful for application of cosmetics/quasi drugs for approval, acquisition of SEK and SIAA marks, development of functional food and agrichemicals, preparation of MSDS, compiling in-house data, and so on.
- Type of study
 - Animals/bacterial strains/cells
 - Duration of the study
 
Single dose toxicity studies
※Please consult us regarding the route of administration (percutaneous, intravenous, etc.).
            - 
              
Single dose level (2000 mg/kg) studies (limit tests)
Mice or rats (≥5/sex)
Approx. 1 month
 - 
              
Dose range finding studies (OECD Guideline)
Mice or rats (≥5/sex/group)
Approx. 1.5 months
 - 
              
Dose range finding studies (for pesticide registration)
Quails (≥5/sex/group)
Approx. 1.5 months
 
Repeated oral dose toxicity studies
※Please consult us regarding the duration of the study and dose levels (number of groups).
            - 
                
Mice or rats (≥5/sex/group)
At least 3 months
 
Primary skin irritation studies
- 
              
Rabbits (≥3)
Approx. 1 month
 
Cumulative skin irritation studies(14-day continuous application)
- 
              
Guinea pigs or rabbits (≥3)
Approx. 1.5 months
 
Phototoxicity studies(Morikawa’s method)
- 
              
Guinea pigs (≥5)
Approx. 1 month
 
Skin sensitization studies(Maximization Test/Adjuvant and Patch Test/Buehler Test)
- 
              
Guinea pigs (≥5/group)
Approx. 2 months
 
Photosensitization studies(Adjuvant and Strip Test)
- 
              
Guinea pigs (≥5/group)
Approx. 2 months
 
Mucosal irritation studies
- 
              
Rabbits or guinea pigs
Approx. 3 months
 
Eye irritation studies
- 
              
Rabbits
Approx. 3 months
 
Genotoxicity studies
- 
              
Ames tests (bacterial reverse mutation tests)
5 bacterial strains
Approx. 1 month
 - 
              
Chromosomal aberration tests
Cultured Chinese hamster cells
Approx. 3 months
 - 
              
Micronucleus tests
Mice or rats
Approx. 2 months
 - 
              
Cytotoxicity studies
V79 cells (JCRB0603)
Approx. 1 month
 - 
              
Ichthyotoxicity studies
Japanese rice fish (7/group)
Approx. 1 month
 
Please feel free to consult us regarding details, costs, etc. of the studies (free quotation).









