Precision peptides,
engineered.
RHL Research Peptides supplies high-purity research peptides to laboratories and qualified investigators. Every lot is independently tested, documented, and traceable.
≥98% Purity
HPLC + Mass Spec
COA per lot
US-Based Synthesis
We make peptides the way watchmakers make movements — one lot at a time, signed, sealed, and accountable to a single number.
A focused range of reference compounds.
Synthesized for reproducible results in receptor binding, metabolic, and recovery research.
GHK-Cu
C₁₄H₂₄CuN₆O₄
Copper tripeptide reference compound for skin and tissue research assays.
Semax
C₃₇H₅₁N₉O₁₀S
Heptapeptide reference compound for neurochemistry and cognition research.
Selank
C₃₃H₅₇N₁₁O₉
Synthetic peptide reference compound for anxiolytic and neuropeptide research.
MOTS-C
C₁₀₀H₁₅₃N₂₇O₂₂S₂
Mitochondrial-derived peptide reference compound for metabolic and longevity research.
Tesamorelin
C₂₂₁H₃₆₆N₇₂O₆₇S
GHRH analog reference compound for growth hormone and lipid metabolism research.
DSIP
C₃₅H₄₈N₁₀O₁₅
Delta sleep-inducing peptide reference compound for sleep and neuroendocrine research.
Retatrutide
C₂₂₁H₃₄₃F₆N₅₁O₆₉
Triple agonist (GLP-1/GIP/glucagon) reference compound for metabolic and weight regulation research.
BPC-157 + TB-500
C₆₂H₉₈N₁₆O₂₂ (BPC-157) / C₂₁₂H₃₅₀N₅₆O₇₈S (TB-500)
Synergistic blend of BPC-157 and TB-500 reference compounds for tissue repair and recovery research.
NAD+
C₂₁H₂₇N₇O₁₄P₂
Nicotinamide adenine dinucleotide reference compound for cellular energy and longevity research.
Tirzepatide
C₂₂₅H₃₄₈N₄₈O₆₈
Dual GLP-1/GIP receptor agonist reference compound for metabolic and glucose regulation research.
CJC-1295 (No DAC) + Ipamorelin
C₁₅₂H₂₅₂N₄₄O₄₂ / C₃₈H₄₉N₉O₅
Synergistic GHRH analog and selective GH secretagogue blend for growth hormone pathway research.
Three standards we never compromise on.
High-purity synthesis
Solid-phase synthesized and verified to ≥98% purity by reverse-phase HPLC.
Independent testing
Mass spectrometry confirms identity. Lot-specific COAs available on request.
Documented chain of custody
Lyophilized, sealed, labeled with lot number, date, and storage requirements.
Built for researchers who care about lot-to-lot consistency.
RHL was founded on a simple premise: research moves faster when materials are predictable. We work with established synthesis partners, document every step, and ship in the form factors a working lab actually needs.
Read our approachCommon questions.
Are these products intended for human use?
No. All RHL products are sold strictly for in-vitro laboratory research by qualified professionals.
Do you provide a Certificate of Analysis?
Yes. A lot-specific COA covering identity, purity, and mass is available for every product.
Who can purchase from RHL?
Sales are restricted to qualified researchers, academic institutions, and licensed laboratory facilities.
Working on something rigorous?
Send us your project specs. We'll respond with documentation, availability, and lead times for qualified inquiries.
Start an inquiry