Skin Stack
Copper-peptide collagen support with pigmentation research.
The copper tripeptide GHK-Cu, 100 mg per pen, studied in skin, collagen and repair research.
The melanocortin agonist Melanotan II, 20 mg per click pen, studied in pigmentation research.
Part of our Skin & Aesthetics.
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Summer Stack
Pigmentation research plus entry-level metabolic support.
Melanotan II 20
Retatrutide 20
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Advanced Summer Stack
Skin repair, pigmentation and the full-strength triple agonist in one box.
GLOW 70
Melanotan II 20
Retatrutide 40
Overview
What this page covers: how the Skin Stack bundle is composed and what each pen contains; what the batch documentation confirms and where its analytical limits lie; and how to contact Veyvora to confirm current pricing, lead times and shipping terms before placing an order.
Add the Skin Stack to your order at veyvora.com, contact info@veyvora.com to confirm current GBP pricing and availability before ordering.
The Veyvora Skin Stack is a two-pen laboratory research bundle containing GHK-Cu 100 mg and Melanotan II 20 mg, supplied strictly for in-vitro and laboratory research use only. As of 30 August 2026, the Skin Stack is listed as an active bundle on the Veyvora stacks page with a stated saving of 12% compared with purchasing each pen separately; no GBP price is displayed on the UK-facing pages reviewed [2]. Confirm current pricing and availability directly with the operator before placing an order.
Skin Stack Pen Set, Specification Table
The table below reflects Veyvora product-page data as of 30 August 2026 [2].
| Pen | Active compound | Format | Dose per click | Supplied with |
|---|---|---|---|---|
| GHK-Cu 100 | Copper-binding tripeptide | 3 mL · 300 clicks | 333 µg | 10× 31G 6 mm needles, dosing card, CoA on request |
| Melanotan II 20 | Melanocortin-receptor agonist | 3 mL · 300 clicks | 67 µg | 10× 31G 6 mm needles, dosing card, CoA on request |
Two independent laboratories test every batch using high-performance liquid chromatography (HPLC), mass spectrometry and endotoxin assay before dispatch, with a batch-specific certificate of analysis (CoA) linked to the pen barrel number (Veyvora, 2026) [2].
Key Takeaways
- The Skin Stack bundles two separately characterised research reagents, GHK-Cu 100 mg (copper-binding tripeptide) and Melanotan II 20 mg (melanocortin-receptor agonist), at a stated 12% saving versus separate purchase.
- Every batch is tested by two independent laboratories using HPLC, mass spectrometry and endotoxin assay; a batch-specific CoA is available on request and keyed to the pen barrel number.
- No GBP price, UK shipping charge or delivery timeframe is published on the pages reviewed as of 30 August 2026; contact info@veyvora.com to confirm these before ordering.
- Both pens are supplied for in-vitro and laboratory research only; neither is authorised for human or veterinary use, and MHRA borderline-products guidance applies to UK buyers [7].
Exact Bundle Identity
The Skin Stack is a two-pen laboratory research bundle from Veyvora containing one GHK-Cu 100 mg copper-peptide pen and one Melanotan II 20 mg melanocortin-receptor agonist pen, supplied strictly for in-vitro and laboratory research use only (Veyvora, 2026) [2].
Veyvora lists the Skin Stack on its stacks page under the descriptor “Copper-peptide collagen support with pigmentation research,” with both component pens named line by line beneath the stack heading [2]. The bundle carries a stated saving of 12% compared with purchasing GHK-Cu 100 and Melanotan II 20 separately; no GBP price is displayed on the UK-facing pages reviewed as of 30 August 2026 [2].
Bundle Identity at a Glance
| Detail | Verified information |
|---|---|
| Bundle name | Skin Stack |
| Pen 1 | GHK-Cu 100 mg (copper-binding tripeptide) |
| Pen 2 | Melanotan II 20 mg (melanocortin-receptor agonist) |
| Stated saving | 12% vs. separate purchase (Veyvora, 2026) [2] |
| GBP price | Confirm with operator |
| Intended use | In-vitro and laboratory research only |
Before ordering, researchers should verify a batch certificate against your pen to confirm that the barrel number matches the CoA supplied with each pen.
Included Components
The Skin Stack contains two independently characterised laboratory research pens, GHK-Cu 100 mg and Melanotan II 20 mg, each in a 3 mL, 300-click format with pen needles, a dosing card and a batch-specific CoA available on request (Veyvora, 2026) [2].
| Component | Strength | Format | Dose per click | Accessories | Source |
|---|---|---|---|---|---|
| GHK-Cu (copper-binding tripeptide) | 100 mg | 3 mL · 300-click pen | 333 µg | 10× 31G 6 mm needles, dosing card, CoA on request | [3] |
| Melanotan II (melanocortin-receptor agonist) | 20 mg | 3 mL · 300-click pen | 67 µg | 10× 31G 6 mm needles, dosing card, CoA on request | [2] |
| GBP bundle price | — | — | — | Confirm with operator | [2] |
GHK-Cu and Melanotan II belong to distinct mechanistic families — copper-binding tripeptide chemistry and melanocortin-receptor pharmacology respectively — which is why Veyvora groups them within its Skin & Aesthetics range by research area rather than by shared mechanism (Veyvora, 2026) [2]. Each pen carries independent HPLC purity and identity data reported per batch.
Consult Veyvora’s storage and stability guidance before receiving stock, as specific temperature requirements for each pen barrel are not detailed on the Skin Stack page and should be confirmed with the operator prior to ordering [2].
Bundle-Level Evidence Boundary
Veyvora groups GHK-Cu 100 mg and Melanotan II 20 mg into the Skin Stack by shared research area, not by any demonstrated combined effect. The Skin & Aesthetics category page describes the bundle as “Copper-peptide collagen support with pigmentation research” and notes that each pen is independently assayed, but makes no efficacy claims, dosing guidance or safety assertions for the two compounds used together [2]. Evidence for each component exists at the individual pen level only; no bundle-level experimental results, interaction data or regulatory approvals are stated or implied anywhere on the Skin Stack pages as of 30 August 2026 [2].
Veyvora’s site-wide framing reinforces this boundary: products are supplied for in-vitro and laboratory research, not as medicines, and nothing on the stacks page constitutes dosing or treatment guidance [2][5]. Researchers procuring the Skin Stack should treat GHK-Cu 100 and Melanotan II 20 as two separately characterised reagents bundled for convenience and price.
Where a protocol requires a copper-peptide blend rather than the pure tripeptide, the GLOW 70 Skin & Repair Pen is a separately listed component with its own batch documentation and should be evaluated against its own specification sheet.
Batch Documents and Handling
Every Skin Stack pen ships with a batch-specific CoA available on request; the batch number printed on the pen barrel allows researchers to match the physical unit to its documentation before laboratory work begins [5]. Veyvora states that two independent laboratories test each batch using HPLC, mass spectrometry and endotoxin assay prior to release, with CoAs reporting identity and HPLC purity for each component independently [5][2].
The CoA confirms what HPLC purity does and does not prove: chromatographic purity relative to the stated compound, not biological activity or in-vivo safety. Endotoxin assay results are reported separately and are particularly relevant for cell-based in-vitro protocols where contamination would confound results [2].
Pens are dispatched cold; specific °C storage ranges for GHK-Cu 100 and Melanotan II 20 are not stated on the Skin Stack page and should be confirmed against the individual component CoA or the supplier’s storage and stability guidance before receipt [2]. Each pen is supplied with 10× 31G 6 mm needles and a dosing card [2][5].
Receipt Verification
Upon receipt, procurement teams should verify four items before logging the batch into inventory:
- Batch number on the pen barrel matches the CoA
- Temperature-indicator strip confirms cold-chain integrity was maintained in transit
- CoA endotoxin value meets the threshold required by the receiving laboratory’s protocol
- HPLC purity figure on the CoA corresponds to the declared compound for that barrel
Commercial Terms
Veyvora lists the Skin Stack with a stated saving of 12% compared with purchasing GHK-Cu 100 and Melanotan II 20 separately, as recorded on the stacks and Skin & Aesthetics category pages as of 30 August 2026 [2][5]. No GBP bundle price, UK shipping charge or delivery timeframe is displayed on the pages analysed; procurement teams should contact Veyvora directly at info@veyvora.com to obtain current pricing, lead times and applicable shipping terms [5].
For distributors, Veyvora states that wholesale supply begins at 50 units per SKU, with tiered pricing at 250 and 1,000+ units; all wholesale batches are independently assayed and shipped cold with batch-specific CoAs [5]. Veyvora does not warrant local regulatory classification and instructs distributors to comply with the regulations of their own market, in the UK, that includes MHRA borderline-products guidance [7].
No explicit information on UK VAT treatment, returns policy or minimum order quantities for non-wholesale buyers appears on the Skin Stack or category pages as of 30 August 2026 [2][5]. Confirm these terms with Veyvora before placing an order.
Research-Use-Only Limitations
Veyvora labels every pen in the Skin Stack, GHK-Cu 100 and Melanotan II 20, as strictly for in-vitro and laboratory research use only; neither pen is a medicine, and neither is authorised for human or veterinary consumption [2]. MHRA borderline-products guidance confirms that a “research use only” label does not exempt a product from UK medicines law if, in context, the product is presented or supplied for human use or carries implied medicinal claims, so legitimate research-use-only status applies only where supply is to qualified researchers conducting genuine laboratory or preclinical work [7][8].
Veyvora’s site-wide language reflects this boundary: category pages carry no dosing guidance, no treatment protocols, and no efficacy or safety claims for the Skin Stack as a combined protocol [2]. Procurement teams and distributors should note that Veyvora instructs each buyer to comply with the regulations of their own market; in the UK, those regulations include MHRA borderline-products guidance and applicable clinical-trial requirements, and Veyvora does not warrant local regulatory classification on the buyer’s behalf [7][2].
Confirming Your Order
To confirm that a received pen matches its declared specification, verify a batch certificate against your pen using the batch number printed on the barrel. Contact Veyvora at info@veyvora.com to request current pricing, lead times and batch documentation before placing an order [5].
Ready to order? Contact Veyvora at info@veyvora.com or visit veyvora.com to confirm current GBP pricing, UK shipping terms and batch availability for the Skin Stack.
Sources
[2] Skin & Aesthetics Research Pens | Veyvora, veyvora.com, https://veyvora.com/categories/aesthetics [3] GHK-Cu 100 mg Copper Peptide Pen | Veyvora, veyvora.com, https://veyvora.com/peptides/ghk-cu-100 [5] Veyvora, research peptides, measured to the microgram, veyvora.com, https://veyvora.com/ [7] Borderline products: how to tell if your product is a medicine — GOV.UK (MHRA), gov.uk, https://www.gov.uk/guidance/borderline-products-how-to-tell-if-your-product-is-a-medicine [8] The Human Medicines Regulations 2012 (SI 2012/1916), legislation.gov.uk, https://www.legislation.gov.uk/uksi/2012/1916/contents
