Side-by-Side Comparison · 2026

BPC-157 vs OTR-AC

BPC-157 vs OTR-AC — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

BPC-157
Healing & Recovery

BPC-157 is a synthetic 15-amino acid peptide derived from gastric juice. It accelerates tissue repair, tendon healing, and gut protection via angiogenesis and growth hormone receptor upregulation. Orally bioavailable and stable in gastric acid. Extensive preclinical evidence acro...

Calculate BPC-157 dose →
OTR-AC
Healing & Recovery

OTR-AC is the common name for oral high-dose BPC-157 acetate. The peptide sequence (GEPPPGKPADDAGLV) is identical to injectable BPC-157 but is dosed at 2–5 mg orally rather than 250–500 µg subcutaneously to compensate for GI degradation and first-pass metabolism. The oral route p...

Calculate OTR-AC dose →
Key Parameters
Parameter BPC-157 OTR-AC
Category Healing & Recovery Healing & Recovery
Research Extensively Studied Preclinical
Half-Life 4–6 hours 4–6 hours (estimated, oral)
Typical Dose 200–500 µg 2–5 mg
Frequency Once or twice daily Once daily
Route Subcutaneous / Oral Oral
FDA Status Not Approved Not Approved

Calculate doses for both

Use ASCEND's free reconstitution calculator to get exact syringe draw amounts for your vial.

Calculate BPC-157 Calculate OTR-AC
Frequently Asked Questions
What is the difference between BPC-157 and OTR-AC?
BPC-157: BPC-157 is a synthetic 15-amino acid peptide derived from gastric juice. It accelerates tissue repair, tendon healing, and gut protection via angiogenesis and growth hormone receptor upregulation. Ora... OTR-AC: OTR-AC is the common name for oral high-dose BPC-157 acetate. The peptide sequence (GEPPPGKPADDAGLV) is identical to injectable BPC-157 but is dosed at 2–5 mg orally rather than 250–500 µg subcutaneou...
Which has a longer half-life, BPC-157 or OTR-AC?
BPC-157 half-life: 4–6 hours. OTR-AC half-life: 4–6 hours (estimated, oral).
Can you stack BPC-157 and OTR-AC?
BPC-157 and OTR-AC are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.