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Lean Stack

Dual-agonist weight management with cellular energy underneath.

what's inside
Tirzepatide 40 mg research peptide click pen, front of box, Veyvora
Tirzepatide 40

Dual GIP / GLP-1 agonist in a 40 mg click pen, studied for metabolic and weight research.

NAD+ 1000 mg research peptide click pen, front of box, Veyvora
NAD+ 1000

High-dose NAD+ in a 1000 mg pen for cellular-energy and longevity research.

Part of our Metabolic & Weight.

related stacks
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Advanced Lean Stack

Triple-agonist fat loss, cellular energy and visceral-fat support, the full lean protocol.

Retatrutide 40
NAD+ 1000
Tesamorelin 20
save 12%

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Metabolic Reset

Mitochondrial support underneath a dual-agonist protocol.

MOTS-C + SS-31 40
Tirzepatide 40
save 15%

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Advanced Metabolic Reset

The triple agonist, mitochondrial blend and NAD+, the deepest reset in the range.

MOTS-C + SS-31 40
Retatrutide 40
NAD+ 1000
✦ Every pen in this stack is independently assayed and supplied for laboratory research use only, not for human or veterinary use. See the research-use notice before use.
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Overview

This page sets out what the Lean Stack Research Bundle contains, what the 15% saving applies to, and where the evidence boundary sits between individual-compound research data and bundle-level claims.

Add the Lean Stack Research Bundle to your order and confirm current GBP pricing at checkout →

Veyvora’s Lean Stack Research Bundle is a defined two-pen research stack pairing Tirzepatide 40 and NAD+ 1000, listed under the Metabolic & Weight category as a “bundle & save” offer with a stated 15% saving versus buying each pen separately, as of 30 August 2026 [3]. Exact GBP pricing and real-time stock status are not exposed on the category page and must be confirmed at checkout [3]. Both pens are supplied strictly for in-vitro laboratory research use and are not medicines.

Key Takeaways

  • The bundle pairs Tirzepatide 40 (dual GIP/GLP-1 receptor agonist, 40 mg click pen) with NAD+ 1000 (1,000 mg, 3 mL cellular-energy pen) at a stated 15% saving versus separate purchase, as of 30 August 2026.
  • No stack-specific trial data combining the two pens exists on Veyvora’s pages; component-level evidence applies only to each compound under its own study conditions.
  • Both pens are supplied for in-vitro laboratory research use only and are not medicines, food supplements, or approved for human or veterinary administration.
  • GBP unit pricing, shipping charges, and real-time stock status must be confirmed at the product detail or checkout stage.

Exact Bundle Identity

Veyvora’s Lean Stack Research Bundle pairs Tirzepatide 40, a dual GIP (glucose-dependent insulinotropic polypeptide) / GLP-1 (glucagon-like peptide-1) receptor agonist in a 40 mg click pen, with NAD+ (nicotinamide adenine dinucleotide) 1000 (a 1,000 mg, 3 mL cellular-energy pen), sold together under the Lean Stack label at a stated 15% saving versus purchasing each pen separately, as of 30 August 2026 [3].

The bundle appears in Veyvora’s Metabolic & Weight category under “bundle & save” and carries the positioning description “Dual-agonist weight management with cellular energy underneath,” which describes the compounds’ receptor targets rather than any demonstrated combined efficacy [3]. Exact GBP pricing and real-time stock status are not exposed on the category page and must be confirmed at checkout [3].

The Lean Stack is distinct from two sibling stacks listed on the same page: Advanced Lean Stack (Retatrutide 40 + NAD+ 1000 + Tesamorelin 20, 12% saving) and Metabolic Reset (MOTS-C + SS-31 40 + Tirzepatide 40, 15% saving) [3]. Substituting any sibling stack changes both the compound profile and the bundle identity, so researchers should confirm the exact pen names before ordering.

Before first use, researchers can verify a batch CoA against your pen to confirm that the pen in hand matches the identity and HPLC (high-performance liquid chromatography) purity data on the certificate.

Included Components

The Lean Stack Research Bundle contains two pens: Tirzepatide 40, a dual GIP/GLP-1 receptor agonist in a 40 mg click pen, and the NAD+ 1000 research pen, a 1,000 mg, 3 mL cellular-energy pen [2][3]. Both are supplied for in-vitro laboratory research use only.

ComponentReceptor target / mechanismNominal strengthFormatProduct link
Tirzepatide 40Dual GIP/GLP-1 receptor agonist40 mgClick penConfirm at checkout [3]
NAD+ 1000Cellular-energy / NAD+ repletion research1,000 mg3 mL click penConfirm at checkout [2]

GBP unit prices for each pen are not exposed on the category page and must be confirmed at the product detail or checkout stage [2][3]. Per-click dosing specifications for each pen, including whether the 133 micrograms-per-click, 300-click specification applies to both components, require confirmation with the operator before ordering.

Individual-compound evidence exists for Tirzepatide 40 and NAD+ 1000 separately; no stack-specific trial data combining the two pens appears on Veyvora’s pages [2][3]. Researchers comparing receptor coverage across compounds may find the retatrutide versus tirzepatide comparison useful before finalising a bundle selection. For post-purchase handling, storage and stability guidance covers the conditions applicable to this pen format.

Bundle-Level Evidence Boundary

The key distinction for any researcher evaluating this bundle: component-level evidence and bundle-level claims are separate categories, and no stack-specific trial data exists for the two pens used together. Veyvora’s pages present mechanistic descriptions and research context for Tirzepatide 40 as a dual GIP/GLP-1 receptor agonist and for NAD+ 1000 as a cellular-energy research compound, but no dosing regimens or outcome metrics for the two pens combined appear on Veyvora’s site [2][3]. The Lean Stack label “Dual-agonist weight management with cellular energy underneath” describes receptor targets, not demonstrated bundle-level efficacy [2].

Published mechanistic data for each compound, sourced from peer-reviewed literature, applies to that compound under the conditions of the study in which researchers generated it, not to any multi-compound research protocol [2][3]. Combining two research peptides in a laboratory protocol introduces variables that neither compound’s individual evidence base addresses, because interaction effects between GIP/GLP-1 agonism and NAD+ repletion pathways have not been characterised in the retrieved literature.

Researchers weighing receptor coverage across related compounds may find the MOTS-c versus SS-31 comparison useful for understanding the mitochondrial-peptide evidence separately from the Lean Stack purchase decision. Those who determine that the Lean Stack does not match their in-vitro protocol requirements can review Veyvora’s research-peptide catalogue for alternative compound selections.

Batch Documents and Handling

Every pen in the Lean Stack Research Bundle ships with a batch-specific certificate of analysis (CoA) tied to its batch number, covering compound identity and HPLC purity [3]. Veyvora states that each pen in the Metabolic & Weight range undergoes independent assay before dispatch, a step that directly addresses the underdosed and mislabelled product risk recognised as a problem in the research-peptide market, because assay results are tied to the specific batch rather than a generic product specification [3]. Researchers can verify a batch CoA against their pen before first use to confirm the batch number matches the supplied documentation.

For a precise account of what HPLC purity data demonstrates and where its evidential limits lie, see what HPLC purity does and does not prove rather than treating a purity figure as a complete quality assessment [3].

No cold-chain handling language, including temperature bands, insulated packaging specifications, or storage procedures referenced to ICH (International Council for Harmonisation) or WHO (World Health Organisation) guidelines, appears in the sampled Veyvora pages as of 30 August 2026 [3]. Any specific shipping-temperature or storage-condition claims for the Lean Stack bundle remain [unverified] and should be confirmed directly from the product detail or dispatch documentation before purchase.

Commercial Terms

Veyvora lists the Lean Stack Research Bundle with a stated 15% saving compared with purchasing Tirzepatide 40 and NAD+ 1000 individually, as of 30 August 2026 [2][3]. The bundle appears under the “bundle & save” label on the Metabolic & Weight category page, confirming active availability at that date [2].

Specific GBP unit pricing, shipping charges, dispatch timeframes, and real-time stock status are not visible in the sampled page content and remain [unverified]; confirm these figures directly from the product detail or checkout page before ordering [2][3]. No minimum order quantities, wholesale tiers, or distributor-specific pricing appear in the retrieved content, so commercial terms for prospective distributors are likewise [unverified] [2][3].

For post-purchase handling requirements, including temperature and storage conditions, see storage and stability guidance. Researchers weighing Tirzepatide 40 against alternative receptor-coverage profiles can consult the retatrutide versus tirzepatide comparison before finalising their bundle selection.

Confirm current GBP pricing and stock status for the Lean Stack Research Bundle at checkout →

Research-Use-Only Limitations

Every pen in the Lean Stack Research Bundle, Tirzepatide 40 and NAD+ 1000, is supplied strictly for in-vitro laboratory research use and is not a medicine, not a food supplement, and not approved for human or veterinary administration [3]. Veyvora’s Metabolic & Weight category states this restriction explicitly across the entire range, and the Metabolic Reset stack page reiterates that each pen is “supplied for laboratory research use only, not for human or veterinary use” [2][3].

Veyvora offers no dosing guidance, clinical protocols, or treatment outcomes. None should be inferred from mechanistic descriptions or receptor-agonist framing on the product pages, because receptor-target language describes biochemical mechanism rather than therapeutic application [2][3]. Under MHRA (Medicines and Healthcare products Regulatory Agency) regulations, unlicensed reference peptides must not be marketed for human administration; Veyvora’s research-use language aligns with that requirement, though independent regulatory confirmation of any specific product’s status remains [unverified] [3].

Qualified researchers bear full responsibility for designing and conducting in-vitro protocols using these materials. The batch-specific CoA supplied with each pen confirms compound identity and HPLC purity for research verification purposes only and does not constitute a safety or suitability assessment for any biological system [2][3].

Researchers evaluating mitochondrial peptides such as MOTS-C and SS-31 outside the Lean Stack scope can consult the MOTS-c versus SS-31 comparison for mechanism-level differentiation. To review the full range of available research compounds, including Retatrutide 40, Tesamorelin 20, and others in the Metabolic & Weight category, visit Veyvora’s research-peptide catalogue and confirm current pricing, stock status, and batch availability directly on the product detail page before placing an order.

Sources

[2] Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight, pubmed.ncbi.nlm.nih.gov, https://pubmed.ncbi.nlm.nih.gov/39996356/ [3] the range, research peptides | Veyvora, veyvora.com, https://veyvora.com/categories/metabolic

© 2026 Veyvora. All rights reserved. For laboratory research use · store cold, 2–8 °C