In the GBA Polska In Vitro Lab we offer the complete spectrum of assays to discover new biological efficacies of cosmetic ingredients.
We offer:
Our experimental models:
Test: TYROSINASE ACTIVITY INHIBITION / ENHANCEMENT
Tyrosinase catalyzes the production of melanin in melanocytes. The inhibition of its activity leads to the skin lightening.
In tubo test, photometry.
Test: MENLANIN PRODUCTION EVALUATION
The increase on the melanin quantity gives to the skin a characteristic tanned color, and its decrease is beneficial in diminishing the appearance of the dark spots.
In vitro test on human normal melanocytes, spetro-photometric measurement.
Test: INHIBITION OF THE HYALURONIDASE ACTIVITY
Hyaluronidase is an endoglycosidase that breaks down hyaluronic acid. The inhibition of its activity protects hyaluronic acid from the degradation caused by the ageing processes.
In tubo test, photometry.
Test: EVALUATION OF THE HYALURONIC ACID PRODUCTION
Hyaluronic acid is a glycosaminoglycan which is a major component of skin, where it is involved in tissue repairing processes and skin hydration. It is known for its excellent water binding properties, since 1 molecule of the hyaluronic acid can bind about 250 water molecules. The amount of the hyaluronic acid in healthy skin decreases with age and after the UV exposure.
ELISA test.
Test: MODULATION OF THE BACTERIAL PROPORTIONS IN THE SIMPLIFIED SKIN MICROBIOME MODEL
The maintenance or recovery of the skin microbiome balanced composition helps to maintain the skin wellbeing and health.
Cocoulture of several bacterial strains characteristic for the human skin, measurement of the bacterial growth and density.
Test: ELASTASE INHIBITION
Elastase is a protease that breaks down elastin in the skin. The inhibition of its activity protects the elastin from the degradation caused by the ageing processes and the external factors, such as UV or air pollution.
In tubo test, photometry.
Test: ELASTIN PRODUCTION EVALUATION
This test evaluates the production of elastin by the normal human dermal fibroblasts.
ELISA test or immunofluorescence.
Test: COLLAGENASE ACTIVITY INHIBITION
Collagenases are enzymes that break the peptide bonds in collagen. The inhibition of the collagenase activity protects collagen from the degradation caused by the ageing processes and the external factors, such as UV or air pollution.
In tubo test, photometry.
Test: COLLAGEN PRODUCTION EVALUATION
This test evaluates the production of collagen I by the normal human dermal fibroblasts.
ELISA test or immunofluorescence.
Test: GENERAL OXIDATION PREVENTION
Oxidative stress in skin plays a major role in the aging process. This is true for intrinsic aging and even more for extrinsic aging, driven to a large extent by oxidative stress caused by UV irradiation. During oxidation, free radicals can damage the building blocks of healthy skin. The inhibition of the oxidative stress protects the skin from the premature ageing and degradation.
In tubo test, photometry.
Test: PROTEIN GLYCOSYLATION PREVENTION
Skin glycation is a process where excess sugar molecules bind to collagen and elastin fibers, leading to the formation of advanced glycation end products (AGEs). This process is one of the crucial mechanisms of the premature ageing.
In tubo test, photometry.
Test: EVALUATION OF THE GROWTH FACTORS MODULATION (EGF, VEGF, PDGF, FGF, TGF)
Growth factors are naturally occurring proteins produced in various skin cells. These proteins are crucial in maintaining skin homeostasis to keep skin cells alive, healthy, and thriving.
ELISA Test.
Test: CUTIBACTERIUM ACNES (PROPIONIBACTERIUM ACNES) GROWTH MODULATION
Cutibacterium acnes is a member of the skin microbiota found predominantly in regions rich in sebaceous glands. It plays a role in the pathogenesis of acne lesions. The inhibition of its excessive growth helps to improve the acne symptoms.
Bacterial culture, evaluation of the strain growth and density.
Test: LIPID PEROXIDATION PREVENTION
Lipid peroxidation occurs in skin-lipid bilayer membranes due to photo-oxidation. It has a direct impact on the skin’s barrier shape. The inhibition of the lipid peroxidation helps to decrease the negative effects of the solar radiation on the skin.
In tubo test, photometry.
Test: MODULATION OF THE INFLAMMATION
The inflammation processes in the skin are caused by both, the natural ageing process and the exogenous factors. They lead to the premature skin ageing (inflammaging) and the lesions appearance (ex. dark spots). The modulation of the biomarkers such as IL-1a, IL-2b, IL-6, IL-8, TNFa helps to control the skin inflammation.
ELISA tests or immunofluorescence.
Test: REACTIVE OXYGEN SPECIES (ROS) EVALUATION
Oxidative stress in skin plays a major role in the aging process. It is caused by both, intrinsic aging and the extrinsic one, driven by UV irradiation. During oxidation, free radicals can damage the skin. The inhibition of the ROS activity helps to improve the cellular processes and skin overall shape.
Fluorescence measurement.
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