Help center

Frequently asked questions.

From dosing to shipping — the answers most people want before they start.

About the products

What is Stack 157™?

A daily oral tissue repair (preclinical) formula combining BPC-157 Arginate, TB4-derived fragment and PEA in a two-stage delivery system. Designed for joints, gut and tissue support in one capsule.

What is Core 157™?

A daily oral baseline combining BPC-157 Arginate and PEA in one capsule. Available in 500 mcg (entry) and 1000 mcg (standard) strengths. The clean entry point for tissue repair (preclinical) and mobility.

What is Gut 157™?

A 7-component daily protocol combining L-Glutamine, Zinc L-Carnosine, Quercetin phytosome, Butyrate, a high-CFU probiotic blend, BPC-157 Arginate, and a mucoadhesive stability matrix.

What is BPC-157 Arginate?

A stabilized 15-residue regenerative complex in arginate salt form. The arginate salt is selected for its stability in gastric transit. See our Science page for full mechanism.

What\'s the difference between Stack and Core?

Core 157™ is the daily baseline (2-in-1: BPC-157 Arginate + PEA). Stack 157™ is the advanced whole-body formula (3-in-1: BPC-157 Arginate + TB4-derived fragment + PEA, 3000 mcg). Most people start with Core, upgrade to Stack when ready.

How to take

How do I take Stack 157™ or Core 157™?

One capsule daily, with or without food. AM or PM — pick a consistent time you\'ll remember.

How do I take Gut 157™?

Two capsules daily, together, with or without food. AM or PM — consistency matters more than timing.

When will I feel the effects?

Most members notice changes within 2–6 weeks. Sustained outcomes typically build between 8–12 weeks. Individual responses vary.

Can I stack the products together?

Yes. The range is designed to layer cleanly. Common pairings: Core + Gut for daily baseline, Stack + Gut for advanced whole-body protocol.

Should I cycle the protocol?

No loading phase, no cycling math required. Consistency does the work. We recommend a minimum 12-week trial period.

Shipping & delivery

Where do you ship?

United States (50 states) and select international destinations. Check at checkout for your country.

Shipping cost?

Free US shipping on orders above $49.99. UK shipping flat rate $39.99. Free on subscription orders above the threshold.

How long until I receive my order?

Ships within 24–48 hours. Delivery: 3–5 business days domestic, 7–14 days international.

Can I track my order?

Yes. You\'ll receive a tracking number by email once your order ships.

Subscription & payment

How does the subscription work?

Monthly delivery at a discount vs one-time pricing. You\'re billed every 30 days. Pause, skip, or cancel anytime from your account.

What\'s the cancellation policy?

Cancel anytime from your account — no commitment, no fees. You can also pause for up to 90 days.

What payment methods do you accept?

All major credit cards, Apple Pay, Google Pay, Shop Pay. Klarna available on orders above $120 (subject to eligibility).

What\'s your refund policy?

60-day refund window on unopened products. Free returns on damaged or defective items. See our refund policy for details.

Safety & quality

Are the products safe?

Manufactured in a GMP-certified facility in the USA. Third-party tested for identity, purity, heavy metals, microbial contaminants, and major allergens. Consult your physician if pregnant, nursing, or on medication.

Can I see the lab reports?

Yes. After purchase, sign in to your account to access the third-party lab report for your specific batch.

Any side effects?

Reported side effects are uncommon at the daily dose. Most are mild digestive adjustments in the first 1–2 weeks. Discontinue and consult your physician if you experience adverse reactions.

Drug interactions?

If you\'re on prescription medication, immunosuppressants, or have a chronic condition, consult your physician before starting any new research compound protocol.

My account

How do I access my batch COA?

Sign in to your account at /account. Each order shows the batch number and a link to the lab report.

I forgot my password.

Use the "Forgot password" link on the sign-in page. We\'ll send you a reset email within 60 seconds.

How do I update my shipping address?

From your account → Subscription → Shipping address. Updates apply to your next scheduled delivery.

Still need help? Contact us →