What is the best peptide pen for your research?
There is no single best peptide pen. The right one depends on the research area you are working in, the compound being studied and how your protocol is structured. Every pen we supply uses the same prefilled, click-wheel format, so the practical difference between them is the peptide inside and the literature behind it.
The categories below group our pens by what the compounds are actually studied for, with a one-line summary of the research focus and a link to each product page for chemistry, certificates of analysis and full study notes.
Immune signalling
Peptides studied for how immune cells mature, communicate and respond to challenge in laboratory and animal models.
- Thymosin Alpha-1 pen
T-cell maturation, NK-cell activity and immune-balance research; thymalfasin is a registered medicine in several countries abroad.
- LL-37 pen
Host-defence peptide studied for antimicrobial activity and innate immune signalling.
- KPV pen
Alpha-MSH fragment studied in inflammation and gut-barrier models.
Repair & connective tissue
The repair literature centres on cell migration, new blood-vessel growth and collagen organisation in injury models.
- Wolverine Stack (BPC-157 + TB-500) pen
The two most-studied repair peptides paired in one pen for tendon, ligament and soft-tissue models.
- BPC-157 pen
Tissue-repair, gut-lining and angiogenesis research models.
- TB-500 pen
Actin regulation, cell movement and scar-quality markers in preclinical work.
- KLOW pen
Blend studied across combined repair and inflammation pathways.
Metabolic & mitochondrial
Cellular-energy research: how mitochondria handle fuel, and how enzyme systems shift NAD+ and lipid pathways.
- MOTS-c pen
Mitochondrial-derived peptide studied for AMPK signalling, glucose handling and exercise-related metabolism.
- 5-Amino-1MQ pen
Selective NNMT inhibition, NAD+ salvage and fat-cell metabolism in cell models.
- AOD-9604 pen
hGH fragment studied for lipolysis pathways and cartilage models.
- Tesamorelin pen
GHRH analog with controlled clinical data on visceral and liver fat in its approved indication.
Growth hormone signalling
Secretagogues studied for the body's own pulsatile GH release rather than supplying growth hormone directly.
- CJC-1295 + Ipamorelin pen
Paired secretagogue blend studied for pulsatile GH release patterns.
- Tesamorelin pen
Stabilised GHRH analog studied for pituitary GH release, with formal clinical trial data.
- CJC-1295 pen
GHRH analog studied for extended GH pulse duration.
- Ipamorelin pen
Selective ghrelin-receptor agonist studied for GH release with minimal cortisol or prolactin shift.
Cognitive & neuro research
Nootropic and neuroprotection literature covering BDNF signalling, stress response and oxidative markers.
- Semax pen
ACTH fragment studied for BDNF expression and attention/memory markers in animal models.
- Selank pen
Tuftsin analog studied for anxiety-related and GABA-linked signalling in models.
- Adamax pen
Semax-derived analog studied in neuroplasticity research.
- Pinealon pen
Short EDR peptide studied for brain-cell oxidative stress and hypoxia models.
Longevity & cellular ageing
Peptides examined for telomere biology, mitochondrial protection and age-related cellular decline.
- Epitalon pen
Studied for telomerase activity and circadian/pineal regulation in ageing models.
- NAD+ pen
Central redox coenzyme studied in cellular-energy and sirtuin research.
- SS-31 pen
Cardiolipin-targeting peptide studied for mitochondrial membrane function.
- Vesugen pen
Short peptide studied in vascular-tissue models.
- Glutathione pen
Master antioxidant tripeptide studied in oxidative-stress and detoxification pathways.
Skin, hair & tissue quality
Dermal research covering collagen, elastin and follicle-cell models.
- GHK-Cu pen
Copper tripeptide studied for collagen types I, III and IV, elastin and follicle-cell activity.
- Glow pen
Blend studied across combined skin-repair and antioxidant pathways.
- KLOW pen
Four-peptide blend studied for skin matrix, collagen and inflammatory signalling together.
Sleep, stress & hormonal signalling
Neuroendocrine research on sleep architecture, stress hormones and reproductive-axis signalling.
- DSIP pen
Delta-sleep-inducing peptide studied for slow-wave sleep and HPA-axis response.
- Kisspeptin pen
Studied for GnRH signalling and reproductive-axis regulation.
- PT-141 pen
Melanocortin-receptor agonist studied in central arousal pathways.
How to choose between them
- Start with the research area. Pick the category that matches the pathway you are studying, then read the compound's research page before comparing pens.
- Check concentration and pen life. Each product page lists the total content, so you can work out how many units a pen provides for your protocol using our peptide calculator.
- Consider blends versus singles. Blends such as the Wolverine and Glow pens cover two pathways in one device; single compounds keep variables separate, which matters in controlled work.
- Look at the certificate of analysis. Every batch has third-party identity and purity testing — see our certificates of analysis.
All products supplied by Peptides Lab SA (PTY) Ltd are for laboratory research use only. They are not medicines, are not approved for human or veterinary use, and nothing on this page is dosing guidance or a claim of therapeutic benefit.
