Sculpt Labs Journal
Research Notes & Buying Guides
Independent breakdowns of UK research peptides — what's verified, what's not, and what to look for.
Research Overviews
Reta Pen UK: Retatrutide Pens vs Research Vials Explained
What people mean by a 'reta pen', how it differs from lyophilised Retatrutide research vials, and why Sculpt Labs supplies verified vials only.
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Retatrutide TRIUMPH-1: What the 30% Weight-Loss Data Actually Showed (2026)
Retatrutide's phase-3 TRIUMPH-1 data landed in 2026 with headline weight-loss numbers up to ~30%. Here's what the trials actually measured — dose tiers, side effects and how the triple agonist compares.
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BPC-157 and TB-500: The UK's Most-Searched Recovery Peptides Explained
BPC-157 and TB-500 are the two most-searched recovery peptides in the UK. Here's what the research literature reports on each, why they're studied together, and how they differ.
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SLU-PP-332: The ‘Exercise in a Bottle’ Compound Explained (2026)
SLU-PP-332 is the ‘exercise mimetic’ blowing up in longevity and biohacking circles in 2026. Here's what it actually is, how the mechanism works, and how it differs from GLP-1s.
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The Best Peptides for Weight Loss in the UK (2026 Research Guide)
A 2026 research guide to the most-studied weight-loss peptides — Retatrutide, Tirzepatide, Semaglutide and lipotropic blends — ranked by the published data.
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Glutathione Explained: The Master Antioxidant Tripeptide (2026 Research Overview)
What the research literature reports on glutathione (GSH) — the 'master antioxidant' tripeptide: its redox mechanism, skin-brightening and detoxification studies, and lab reconstitution basics.
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CJC-1295 + Ipamorelin: How the GHRH + GHRP Blend Works (2026 UK Research Guide)
How the CJC-1295 (no DAC) + Ipamorelin blend works in research — the GHRH + GHRP pairing, DAC vs no-DAC half-life, growth-hormone pulsatility studies, and lab reconstitution basics.
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Retatrutide 20mg UK — What to Look For Before You Buy
A guide to buying Retatrutide 20mg in the UK: what it is, vial vs disposable pen formats, and how to verify purity via Janoshik Analytical.
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MOTS-C Peptide UK — Mitochondrial Peptide, Janoshik Verified
Buy MOTS-C peptide in the UK from Sculpt Labs. Janoshik Analytical verified, 99% purity, same-day UK dispatch. Research-grade supply with published Certificate of Analysis.
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How to Reconstitute Retatrutide UK — Step by Step Guide
Step by step guide to reconstituting Retatrutide with bacteriostatic water. Includes concentration calculator, storage guide, and what to check before use.
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Melanotan 1 vs Melanotan 2: Key Differences Explained
Melanotan 1 vs Melanotan 2 compared — structure, receptor selectivity, tanning effects and side effects of these two research peptides. A UK research guide.
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Retatrutide vs Tirzepatide vs Semaglutide: How the Triple Agonist Compares (2026)
A 2026 research overview of retatrutide's triple GLP-1 / GIP / glucagon mechanism and how it compares with tirzepatide and semaglutide in the published literature.
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GHK-Cu Copper Peptide Explained: Skin, Hair & Tissue Repair Research
What current research literature reports on the copper peptide GHK-Cu — mechanism, skin and hair studies, and reconstitution basics for laboratory use.
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MT2 (Melanotan II) and Melanogenesis: A 2026 Research Primer
A 2026 research primer on MT2 — α-MSH analogue structure, melanocortin receptor pharmacology and the melanogenesis pathway it activates.
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