bpc-157 half-life duration in body clears your system under 2 hours. That's why it needs daily dosing. TB-500's plasma is only about 2 hours, but it enters your cells and binds to actin monomers The Complete BPC-157 Dosage Guide:
Description
Pahlevanzadeh et al., 2022)

AHK-Cu is a cosmetic peptide serum applied topically to the scalp

Wholesale Pricing Structure Zybiopeps offers a straightforward wholesale discount for bulk research peptide orders: Orders over $1,000 receive a flat 35% discount across our entire product range
For most healthy adults, 1500 mcg is generally not considered dangerous