Peptides
Retatrutide
10 mg
Triple-agonist research peptide, ≥98% purity.
€81
KUULPEPS.com — research peptides for longevity, performance and optimal living
- ≥98%
- Verified purity
- 24h
- EU dispatch
- 100%
- Batch tested
Brand pillars
Longevity
Extend your years with compounds studied for healthspan.
Biohacking
Science. Backed. Optimised. No marketing shortcuts.
Optimization
Peak body, peak mind, peak life — measured, not guessed.
Wellness
Sustainable health for the long run, not a 12-week cycle.
Best sellers
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GHK-Cu
50 mg
Copper tripeptide for skin and tissue research.
€50
Peptides
Tesamorelin
10 mg
GHRH analogue research peptide, ≥98% purity.
€180
Better biology. Better life.
From the biohacking journal
Lab Practice · 7 min read
How to Reconstitute Peptides Correctly: A Step-by-Step Lab Guide
Bacteriostatic water ratios, sterile technique, storage temperatures and the concentration maths behind accurate peptide reconstitution.
Longevity · 9 min read
The Longevity Stack: What Actually Moves Healthspan Markers
Sleep architecture, VO2 max, protein intake and resistance training — the four inputs with the strongest evidence behind extending healthspan.
Lab Practice · 6 min read
Peptide Storage and Handling: Cold Chain, Light and Shelf Life
Why lyophilised powder outlives reconstituted solution, how light degrades peptide bonds, and how to build a simple lab cold chain.