Express Pen Filled cartridge
FST-344 (Follistatin) Pen
Choose the FST-344 (Follistatin) vial size and decide whether you want a full pen or an additional filled cartridge. Bac water is included in the service price. The pen comes as Gen 2 and Gen 1.
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Price summary
FST-344 (Follistatin) Express single vial -
Full pen service -
Total -
