Clear dosage. Independently tested. No crash promises.

Body Composition

Peptides that support lean, measured progress — not crash results.

Peptides chosen for measured, sustainable progress — each with visible testing, clear dosage, and no crash promises.

Questions this page answers
  • How is body composition different from general metabolic support?
  • Which peptides are most often paired with training?
  • Where can I see the lab results for each batch?
Recommended peptides

A short list of peptides that fit this goal.

We keep the choice focused. Every peptide here has a clear purpose, independent testing, and a product page written in plain language.

Sermorelin
Longevity Systems
Long
Sermorelin
GHRH analogue
ISO/IEC 17025 lab tested≥ 98% HPLC purity
Sermorelin

A GHRH analogue studied for endogenous growth hormone stimulation — investigated in body-composition, sleep, and healthy-aging contexts.

Retatrutide
Metabolic Systems
Metabolic
Retatrutide
Triple agonist peptide
Third-party tested≥ 98% HPLC purity
Retatrutide

A triple agonist peptide targeting GIP, GLP-1, and glucagon receptors — studied in advanced metabolic and weight-regulation contexts.

Tesamorelin
Metabolic Systems
Metabolic
Tesamorelin
Growth hormone releasing factor
ISO/IEC 17025 lab tested≥ 98% HPLC purity
Tesamorelin

A GHRH analogue studied for visceral fat reduction and body-composition support — used in clinician-supervised metabolic and growth hormone contexts.

MK-677
Recovery Systems
Recovery
MK-677
GH secretagogue support
Third-party tested≥ 99% HPLC purity
MK-677

Ibutamoren mesylate — an orally active ghrelin receptor agonist studied for GH pulse amplification, lean muscle accretion, and sleep-architecture support.

Tirzepatide
Metabolic Systems
Metabolic
Tirzepatide
Dual GIP / GLP-1 agonist
Third-party tested≥ 99% HPLC purity
Tirzepatide

A dual GIP/GLP-1 receptor agonist studied for its effects on appetite regulation, metabolic balance, and body composition — framed for clinician-guided routines.

IGF-1 LR3
Composition Systems
Comp.
IGF-1 LR3
Long-acting IGF-1 analogue
ISO/IEC 17025 lab tested≥ 98% HPLC purity
IGF-1 LR3

A long-acting IGF-1 analogue studied for anabolic signalling and measured body-composition support — framed for clinician-guided recovery protocols.

The science, briefly
What this category needs to explain clearly.
  • goal-differentiation
  • product-comparison
Third-party lab report
Independent batch testing

Every batch is analysed by an independent ISO/IEC 17025-accredited laboratory. Identity, purity, and mass-spec results are published on the product page before you buy.

Quality documentation
ISO/IEC 17025-accredited lab testing

Every batch is verified by an ISO/IEC 17025-accredited laboratory before release. Identity, purity, and documentation travel with the product — not behind a form.

FAQs

Questions people ask about this category.

Honest, short answers to the things most shoppers want to know before they buy.

Why does Peptyds organise the shop by goal?

Most people know the outcome they want — better recovery, long-horizon support, better skin — before they know which molecule fits. Starting from the goal makes the product choice clearer and reduces the risk of buying something that does not fit the routine.

What proof of quality comes with my order?

Every batch ships with a batch code printed on the vial. The matching third-party certificate of analysis — identity, HPLC purity, and mass-spec results — is linked on the product page and also available from your order page after purchase.

How much scientific detail is on each product page?

Each page opens with a plain-language purpose line and the testing behind it, then expands into research notes, dosing specifications, and linked peer-reviewed studies for readers who want more depth. You decide how deep you go.