Research use only · Made in Austria

Quality over quantity.Eleven research peptides, pure and clear.

Mr Pep documents carefully selected research peptides — with identity labels on every box and pen, and official FDA resources linked on every profile. This is an information site, not a storefront.

CEO Cyrus Johnson · Mr Pep · Probably the best in the world

Mr Pep Number 1

Welcome

Meet Cyrus Johnson, CEO of Mr Pep

Quality over quantity. Pure research peptides. Side-by-side with scientists.

Catalog

The eleven keys

Single compounds. Clear identities. Storage at three to eight degrees.

Full catalog
Product integrity

Why "Glow" and "Wolverine" style pre-mixes miss the point

Blending peptides with different research schedules into one vial looks convenient. It usually isn't science-friendly.

  • TP-500 research often uses multi-day / weekly intervals; BPC-157 is commonly studied daily — one fixed mix can't honor both.
  • Cost ratios matter: expensive actives can be diluted with cheap bulk while the label still sells the blend name.
  • Without independent assay data, stated milligrams are marketing, not measurement.
Read the quality challenge

Sticker rule

  • Empty white square on box back → sticker
  • Pen → same sticker (not a different design)
  • Front of box stays master brand art
  • Full packaging guide

Who is Mr Peptide?

Eleven keys — tested and true. Keep them cold at three to eight.