Measurement
Measurement service such as SPF measurement
SPF UVA, UVB measurement service (Boots Star/PA eq.)
SPF UVA, UVB measurement service (Boots Star/PA eq.)
It takes 1-2 days, with a spectrophotometer.
This price is for documents to be registered with the Thai FDA. If you want to use it for registration in the FDA EU/USA, there will be an additional charge of 11,000 baht.
Anti-tyrosinase assay
This anti-tyrosinase assay evaluates how effectively a substance inhibits the enzyme tyrosinase, which is key in melanin production. Such assessments are important for developing skincare formulations to reduce hyperpigmentation, antioxidants in food preservation to prevent browning, and other applications in cosmetics, pharmaceuticals, and agriculture. Tyrosinase catalyzes the oxidation of L-tyrosine to colored intermediates (e.g., dopachrome), detectable at 475 nm. Inhibitors reduce the formation of these colored products, lowering absorbance. By comparing the sample’s absorbance to a negative control, the percentage of enzyme inhibition is calculated, indicating the anti-tyrosinase potential of the test substance.
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