Tools · Discovery

Is MK-677 on the WADA list?

Anti-doping classification for MK-677, plus what athletes in tested sports need to know before any research use.

WADA Class S2 — Peptide Hormones

S2 Peptide Hormones, Growth Factors, Related Substances

MK-677 — prohibited.

Class S2 covers peptide hormones, growth factors, related substances, and mimetics. Prohibited at all times, in and out of competition.

Compound

MK-677

WADA flag

Regulatory

not approved

The WADA Prohibited List is updated annually. This tool reflects our latest curated data — for binding athlete decisions, verify directly against the current list at wada-ama.org.

Other compounds in the same WADA class

Thymosin Beta-4

Actin-sequestering peptide with clinical data in ophthalmic wound healing and preclinical tissue repair.

Check status

TB-500

Marketed thymosin beta-4 fragment (LKKTETQ actin-binding motif) studied for soft-tissue repair in preclinical models.

Check status

CJC-1295

Long-acting GHRH analogue studied in human trials for sustained GH/IGF-1 elevation.

Check status

Sermorelin

GHRH(1-29) analogue that stimulates pulsatile GH secretion, historically used in clinical settings.

Check status

Tesamorelin

FDA-approved GHRH analogue for HIV-associated lipodystrophy. Prescription only.

Check status

Ipamorelin

Selective GHSR agonist profiled for more targeted GH release with less ACTH/cortisol spillover than earlier secretagogues.

Check status

Sources and review notes

PeptidePros calculator methodology - PeptidePros
Explains calculator assumptions, non-medical scope, and why outputs require label verification.
Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks - U.S. Food and Drug Administration - accessed 2026-05-15
Used for FDA compounding-risk context and peptide safety flags.
The Prohibited List - World Anti-Doping Agency - accessed 2026-05-15
Used for athlete-facing WADA risk and peptide-class restrictions.

Back to all tools

Personalized tool routing

Find the next step for your protocol.

Take the quiz before choosing a calculator, vendor, or PDF. We match your goal, experience, budget, and monitoring comfort to the next best step in the funnel.

Goal-matched compound and protocol recommendations.
Budget and sourcing filters before you leave the site.
PDF unlocks shown after your personalized result.

Take the quiz