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Testosterone base test

If you are testing only pure powder the color will be for vial A - red green, vial B - yellow and vial B will be blue under UV light. Here is sample of final product with GSO oil with the concentration of 30 mg/ml. You will notice slow change into orange in both vials, then dark yellow - greenish under UV light. With very high concentration you should see a little blue fluorescence.

Initial colors just after dropping testosterone base, green in vial A and light yellow in vial B

Colors in both vials getting a little darker red but it is not indication of testosterone base presence we need to do UV test.

Vial B under 365 nm UV light