SOMA Folinic Acid Capsules (25mg)
Folinic acid (leucovorin, 5-formyl-THF) in oral capsule format, 25mg per capsule. Active folate coenzyme for one-carbon metabolism, DNA synthesis, and methylation cycle research. COA included.
Peptide Capsules Research Compounds
21 compounds. All third-party HPLC tested. Certificate of Analysis on every order. For Research Use Only (RUO).
Oral Research Peptide Capsules
Oral peptide delivery is an emerging area of pharmaceutical research. Historically, the digestive tract was considered a barrier to peptide bioavailability due to enzymatic degradation — but advances in formulation chemistry have enabled a subset of peptides to survive first-pass metabolism and reach systemic circulation in oral form. This makes oral peptide capsules a valuable format for researchers studying absorption mechanisms, bioavailability optimization, and convenience-focused dosing protocols.
Rainbow Peptide's oral capsule range contains pre-measured, encapsulated research compounds — no reconstitution, no syringe required. Each capsule delivers a precise dose in a format that simplifies experimental logistics for laboratory and clinical research teams alike. Compounds like Dihexa, Semax, Selank, Epithalon, and BPC-157 are available in oral format, alongside next-generation metabolic compounds like Orforglipron, Tirzepatide, and O-304.
All capsule compounds are HPLC verified at >98% purity with independent COA documentation. Many compounds in the capsule line are also available as injectable vials — product pages include cross-links where alternate formats exist, allowing researchers to select the delivery route best suited to their study design.
For Research Use Only (RUO). Oral peptide capsules are intended for in vitro and laboratory research purposes only. Not for human consumption.
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SOMA Orforglipron Capsules
Orforglipron oral non-peptide GLP-1 receptor agonist in capsule format. Small-molecule metabolic signaling research compound with Phase III ATTAIN-DM weight loss data. COA included.
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SOMA 1-MNA Capsules (60mg)
1-MNA (1-Methylnicotinamide) in oral capsule format, 60mg per capsule. NAD+ metabolite studied as a myokine, anti-inflammatory agent, and SIRT1 stabiliser. COA included.
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SOMA O-304 Capsules (150mg)
O-304 (ATX-304, OS-01) pan-AMPK activator in oral capsule format, 150mg per capsule. Studied for whole-body metabolic activation and insulin sensitisation. COA included.
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SOMA Tirzepatide Capsules (10mg)
Tirzepatide GIP/GLP-1 dual agonist in oral capsule format, 10mg per capsule. FDA-approved Mounjaro/Zepbound mechanism. Studied for glucose regulation and metabolic research. COA included.
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AXON DSIP Capsules (5mg)
DSIP (Delta Sleep-Inducing Peptide) in oral capsule format, 5mg per capsule. Studied for sleep architecture modulation, HPA axis normalisation, and stress peptide biology. COA included.
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SOMA Retatrutide Capsules (10mg)
Retatrutide GIP/GLP-1/glucagon triple agonist in oral capsule format, 10mg per capsule. Next-generation metabolic research peptide with 24.2% Phase II weight loss data. COA included.
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SOMA Thymosin Alpha-1 Capsules (10mg)
Thymosin Alpha-1 (TA1) immune-regulatory peptide in oral capsule format, 10mg per capsule. Approved as Zadaxin in 35+ countries. Studied for T-cell maturation and innate immunity. COA included.
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SOMA KPV Capsules (4mg)
KPV (Lys-Pro-Val) alpha-MSH tripeptide in oral capsule format, 4mg per capsule. Studied for MC1R-mediated anti-inflammatory signaling and intestinal permeability. COA included.
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SOMA MOTS-c Capsules (10mg)
MOTS-c mitochondria-derived peptide in oral capsule format, 10mg per capsule. Studied for AMPK activation, glucose homeostasis, and exercise-mimetic metabolic effects. COA included.
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SOMA SS-31 Capsules (20mg)
SS-31 (Elamipretide) mitochondria-targeted tetrapeptide in oral capsule format, 20mg per capsule. Phase II/III clinical data for cardioprotection and mitochondrial bioenergetics. COA included.
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SOMA GHK-Cu Capsules (50mg)
GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) in oral capsule format, 50mg per capsule. Studied for collagen synthesis, wound healing, and systemic tissue remodelling. COA included.
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SOMA Semax Capsules (10mg)
Semax ACTH-derived nootropic neuropeptide in oral capsule format, 10mg per capsule. Studied for BDNF upregulation, cognitive enhancement, and stroke recovery models. COA included.
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SOMA Selank Capsules (10mg)
Selank heptapeptide in oral capsule format, 10mg per capsule. Russian-registered anxiolytic neuropeptide studied for GABAergic modulation and HPA axis regulation. COA included.
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SOMA Epithalon Capsules (10mg)
Epithalon (Epitalon) tetrapeptide in oral capsule format, 10mg per capsule. Studied for telomerase activation, cellular longevity, and pineal regulation. COA included.
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SOMA NAD+ Capsules (500mg)
NAD+ (Nicotinamide Adenine Dinucleotide) in oral capsule format, 500mg per capsule. Research-grade coenzyme for longevity, mitochondrial function, and sirtuin activation studies. COA included.
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SOMA Dihexa Capsules (10mg)
Dihexa potent synaptogenic AT4/IRAP inhibitor in oral capsule format, 10mg per capsule. Researched for HGF/MET pathway and cognitive function models. COA included.
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SOMA 5-Amino-1MQ Capsules (50mg)
5-Amino-1MQ NNMT inhibitor in oral capsule format, 50mg per capsule. Studied for adipocyte metabolism, NAD+ pathway activation, and fat cell differentiation. COA included.
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SOMA SLU-PP-332 Capsules (200mg)
SLU-PP-332 ERRα/γ agonist in oral capsule format, 200mg per capsule. Exercise-mimetic compound studied for endurance and metabolic adaptation. COA included.
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SOMA BPC-157 Capsules (500mcg)
BPC-157 (Body Protection Compound) in oral capsule format, 500mcg per capsule. Studied for GI integrity, tissue signaling, and systemic repair pathways. COA included.
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AXON Dihexa
Dihexa is a small-molecule angiotensin IV analogue and AT4/IRAP inhibitor. Studied for synaptogenic activity and cognitive enhancement, it is reported to be approximately 10 million times more potent than BDNF in facilitating new synapse formation.