Non Food

ANALYSIS ON COSMETICS

Test of cosmetics products

- Efficacy test
- Security test
- Consumer test
- Microbiological test
- Chemical test
- Rheological test
- Accelerated aging test

Efficacy test

	In vivo evaluation of the efficacy of cosmetic products destined to fight the skin inestetims, by the use of Derma Top Blue
	Evaluation of hydrating efficacy (short–term until 24 h
	Evaluation of reservoir effect
	Evaluation of trans – epidermal water loss
	Evaluation of semum normalizing effect
	Verification of resistance to flaking caused by the movement of lips, and of transfer of color when lips come into contact with another surface (for example clothes, napkins, cups, glasses, and so on) or oily food on lipsticks, lipgloss and lip liner. Performance of the analysis of “Transfer Resistant Cosmetic Composition flexibility” and “dry and oil blot test”
	Evaluation of water resistance, by the using of scanning electron microscope (S.E.M.) on mascaras
	Evaluation of water resistance, by a modified Martindale instrument on eye liner
	Evaluation of the quality of the hair dyes, shampoos for dyed hairs
	Evaluation of the colour of the cosmetics after the exposure to the artificial light

Security test

	Patch-test
	Ophthalmology test
	In vitro skin irritation test
	In vitro ocular irritation test

Consumer Test

The availability of an archives of hign number of volunteers and people specialized on execution of market research allows the realization of studies aimed to evaluate how the consumers consider the product from the point of the view of:

efficacy
easiness of use
pleasantness

both for a single product and in comparison with another product

Microbiologica test

The section executes tests of the efficacy of preserving system by:

	Challenge Test: internal method
	Challenge Test: Afnor method
	Linear Regression

Furthermore, our laboratory, performs the determination of the following micro organisms, by using the official norms here indicated:

	Total viable aerobic count (ISO 21149:2009)
	Mycetes (ISO DIS 16212:2007)
	Staphylococcus Aureus (ISO 22718:2006)
	Pseudomonas Aeruginosa (ISO 22717:2006)
	Candida Albicans (ISO DIS 18416:2005)
	Escherichia Coli (ISO 21150:2006)
	Determination of specific and not specific microorgnisms (ISO 18415:2007)
	Enterobacteria-qualitative and/or quantitative determination (internal method)

Chemical test

	Determination of preservatives ( sorbic and benzoate acid, thiazolinone, parabens, salicylic acid,…)
	Determination of heavy metals by ICP/MS
	Determination of flavouring allergenic substances by GC/MS
	Determination of synthetic musks by GC/MS
	Determination of panthenol by HPLC
	Determination of EDTA (ethylendiaminetetraacetic acid) by HPLC
	Determination of dyes by HPLC or by TLC
	Quantitative determination of phthalates by GC/MS
	Determination of NDELA (nitrosodiethanolamine) by LC/MS/MS
	Determination of IMU (imidazolidinylurea) by LC/MS

Chelab also performs the determination of :

anti-dandruff principles such as piroctone and olamina

glycerine, sorbitol and fluorinted composition (GC)

triclosan (HPLC)

Chemical filters in solar creams such as: methylene bis-benzotriazolyl tetramethylbutylphenol (tinosorb M) , bis-ethylhexyloxyphenol methoxyphenol triazine (tinosorb S), ethylhexyl triazone (ET) and diethylhexyl butamido triazone (DBT)

physical filters in solar creams such as: zinc oxide and dioxide titanuim (ICP)

oxidation state in the oil, lipid and hydrolipid matrices (peroxides)

product control

foaming power

soaps

anionic surface-active agents

cationic surface active agents

humidity and volatile substances

brookfield viscosity (RV e LV)

fatty fraction

non ionic fraction

ethanol

Rheological test

Determination of viscosity of cosmetics products

Accelerated aging test

Determination of PAO (Period After Opening)

Studies of shelf life, for the monitoring of the chemical and organoleptic characteristics in time

FOR TECHNICAL AND COMMERCIAL INFORMATION -