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Just apply a small amount to an out-of-the-way spot, like behind your ear, and wait 24 hours to see how your skin reacts
The company does not guarantee customs clearance and states that it cannot provide refunds or replacements for packages affected by customs seizures, refusals, or other import restrictions
Tamoxifen is used as the low solubility control and caffeine as the high solubility control, providing reference points to bracket the assay range and verify assay performance
Prepare a clean work area
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