Description
Summary Abstract
Pure Potion Serum (L-007; topical cosmeceutical serum; GHK-Cu + NAD⁺ + Hyaluronic Acid) is a multi-active dermal research serum combining three mechanistically distinct bioactive ingredients — each with an established evidence base in extracellular matrix (ECM) remodeling, cellular energetics, and dermal hydration research. GHK-Cu (Copper Tripeptide-1; Gly-His-Lys·Cu²⁺; CAS 89030-95-5; MW ~403.93 g/mol; INCI: Copper Tripeptide-1) is a naturally occurring copper(II)-complexed tripeptide identified in human plasma by Pickart (1973) at concentrations that decline from ~200 ng/mL in young adults to <80 ng/mL by age 60; it stimulates fibroblast collagen synthesis, modulates matrix metalloproteinase (MMP)/TIMP balance toward remodeling, and has been characterized by microarray analysis as resetting expression of ~4,000 human genes toward patterns associated with younger tissue. NAD⁺ (Nicotinamide Adenine Dinucleotide; CAS 53-84-9; MW 663.43 g/mol) is an essential co-enzyme for sirtuin (SIRT1, SIRT6) deacetylase activity, DNA repair via PARP enzymes, and oxidative phosphorylation; topical NAD⁺ delivery provides local substrate availability for dermal fibroblasts undergoing age-related NAD⁺ depletion (~50% decline between ages 30 and 60), supporting collagen biosynthetic capacity and UV-induced DNA repair. Hyaluronic Acid (HA; sodium hyaluronate; CAS 9067-32-7; MW variable 5–2,000 kDa depending on grade) is a naturally occurring glycosaminoglycan in the dermal ECM; topical HA creates a hydration matrix that maintains dermal water content, modulates fibroblast proliferation and collagen expression (2 kDa HA showing increased dermal collagen scores in vivo), and provides a sustained delivery matrix for co-applied bioactives. As a topical formulation, this serum’s storage, handling, and application profile differ fundamentally from injectable lyophilized peptide products in the Kaiser BioMed catalog.
Research Applications
Three converging mechanisms make this serum a multi-target dermal research tool:
- Collagen Synthesis and ECM Remodeling (GHK-Cu): GHK-Cu stimulates fibroblast collagen I, III, and IV production with maximal effect near 10⁻⁹ M, alongside decorin and glycosaminoglycan upregulation; it simultaneously modulates MMP-1/MMP-2/MMP-9 and TIMP-1/TIMP-2 balance toward constructive remodeling rather than fibrotic scarring — the foundational mechanism documented by Maquart et al. (FEBS Letters, 1988) and confirmed in subsequent wound-healing literature.
- DNA Repair and Photoprotection (NAD⁺): Dermal NAD⁺ availability drives PARP-mediated UV-induced DNA repair; topical delivery supports this mechanism in fibroblasts and keratinocytes with documented age-related NAD⁺ depletion. SIRT1 activation by NAD⁺ reduces MMP-1 expression (collagen degradation enzyme) while SIRT6 upregulates collagen synthesis genes, creating a two-way protective effect on the dermal matrix.
- Dermal Hydration and HA Matrix (Hyaluronic Acid): HA’s hygroscopic properties maintain dermal water content and create a transient epidermal hydration reservoir; proteomic studies on HA-treated fibroblasts document changes in ECM reorganization, collagen biosynthesis, and mitochondrial activity pathways — confirming biological effects beyond passive hydration.
- Antioxidant and Copper Enzyme Activation (GHK-Cu): The Cu²⁺ in GHK-Cu supplies cofactor chemistry for lysyl oxidase (collagen cross-linking), superoxide dismutase (antioxidant defense), and cytochrome c oxidase (mitochondrial Complex IV); GHK-Cu additionally upregulates endogenous SOD, catalase, and glutathione peroxidase through Nrf2 pathway activation, providing multilayer antioxidant support in the dermal compartment.
Contraindications and Precautions
- Copper Allergy / Hypersensitivity: GHK-Cu contains chelated copper(II); individuals with documented copper hypersensitivity or Wilson’s disease should avoid application to large surface areas.
- Active Dermatitis / Compromised Skin Barrier: Application to disrupted skin may alter absorption kinetics of all three components; GHK-Cu systemic absorption through compromised barrier is uncharacterized — use on intact skin only.
- Interaction with Retinoid-Based Products: GHK-Cu’s MMP modulation and collagen stimulation may interact synergistically or antagonistically with retinoid-driven remodeling; concurrent use in research formulations requires endpoint-specific consideration.
- NAD⁺ Topical Penetration Limitation: NAD⁺ at 663.43 g/mol is at the upper limit of effective stratum corneum penetration; the formulation is designed for topical surface delivery to viable epidermis and superficial dermis rather than deep dermal penetration comparable to injectable forms.
Mechanism of Action (MOA)
Three mechanistically distinct pathways converge to support ECM remodeling, cellular energetics, and dermal hydration:
GHK-Cu — Copper-Dependent ECM Remodeling and Gene Expression
GHK-Cu functions as a physiological copper(II) chaperone, delivering Cu²⁺ to lysyl oxidase (collagen/elastin cross-linking), superoxide dismutase (SOD1; antioxidant), and cytochrome c oxidase (mitochondrial ATP generation). In fibroblast models, it drives synthesis of collagen I, III, and IV, elastin, fibronectin, decorin, and glycosaminoglycans while modulating MMP/TIMP expression toward net ECM remodeling. Microarray data characterize GHK-Cu as resetting expression of ~4,000 human genes — upregulating DNA repair, antioxidant, ubiquitin-proteasome, and stem-cell-maintenance genes while suppressing inflammatory (TNF-α, IL-6) and fibrotic pathways. The GHK sequence is embedded in the alpha-2(I) chain of type I collagen and is naturally liberated at wound sites by proteolytic cleavage.
NAD⁺ — Sirtuin Activation and PARP-Mediated DNA Repair
NAD⁺ serves as the obligate co-substrate for SIRT1 and SIRT6 deacetylases and for PARP (poly-ADP ribose polymerase) DNA repair enzymes. In dermal fibroblasts, SIRT1 activation inhibits MMP-1 (collagenase) expression, protecting existing matrix; SIRT6 directly upregulates collagen synthesis gene promoters. PARP-driven DNA repair addresses the primary mechanism of UV-induced mutation accumulation in keratinocytes and fibroblasts — the biochemical basis of photoaging. Topical NAD⁺ provides local substrate availability to support these enzyme-dependent reactions in the target tissue compartment, with in vitro fibroblast studies documenting ~35% increases in procollagen type I synthesis and ~42% reduction in reactive oxygen species (ROS) markers at NMN-supplemented concentrations.
Hyaluronic Acid — Hydration Matrix and Fibroblast Activation
Topical hyaluronic acid (HA) forms a high-water-content hydration network at the skin surface, reducing transepidermal water loss (TEWL) and maintaining dermal turgor. HA at molecular weight 2 kDa has been documented to increase dermal collagen scores in vivo; 20–50 kDa HA drives proteomic changes in fibroblasts including ECM reorganization, collagen biosynthesis, and mitochondrial activity pathways. HA also serves as a sustained surface matrix for co-applied GHK-Cu and NAD⁺, prolonging their residence time in contact with viable epidermis. The dermal HA content naturally declines with age and UV exposure, making topical replenishment a mechanistically motivated strategy in aging skin research.
Key Features & Specifications
Defining characteristics of this multi-active topical dermal serum:
Chemical Analysis
| Property | Specification Reference Data |
|---|---|
| Component 1 — GHK-Cu | Copper(II) complex of Gly-His-Lys tripeptide; INCI: Copper Tripeptide-1; coordinates Cu²⁺ via histidine imidazole N, glycine α-amino N, and deprotonated peptide bond amide N |
| GHK-Cu CAS | 89030-95-5 (copper complex); 49557-75-7 (free GHK tripeptide) |
| GHK-Cu Molecular Formula | C14H23CuN6O4 |
| GHK-Cu Molecular Weight | ~403.93 g/mol (copper complex); 340.38 g/mol (free peptide) |
| GHK-Cu PubChem CID | 71587328 (Cu complex); 73587 (free GHK) |
| Component 2 — NAD⁺ | Nicotinamide Adenine Dinucleotide (oxidized form); co-enzyme; substrate for SIRT1/SIRT6 deacetylases and PARP DNA repair enzymes |
| NAD⁺ CAS | 53-84-9 |
| NAD⁺ Molecular Weight | 663.43 g/mol |
| Component 3 — Hyaluronic Acid | Sodium hyaluronate; linear glycosaminoglycan polymer of N-acetyl-D-glucosamine and D-glucuronic acid disaccharide repeats |
| Hyaluronic Acid CAS | 9067-32-7 (sodium hyaluronate) |
| Hyaluronic Acid Molecular Weight | Variable: 5 kDa (low-MW/penetrating) to 2,000 kDa (high-MW/film-forming) depending on grade |
| Form / Variation | Topical serum (L-007) — aqueous formulation; no reconstitution required; direct skin application |
Storage, Safety, and Handling
Storage Protocol
Store topical serum at 4–15 °C, protected from direct light and heat sources; do not freeze (unlike injectable lyophilized peptides, freezing may disrupt the serum vehicle and affect HA polymer integrity and GHK-Cu suspension stability). Keep the cap tightly sealed between uses to minimize oxidation of NAD⁺ in solution. Discard after the manufacturer’s labeled expiry date or if color, clarity, or consistency changes; GHK-Cu serum typically appears clear to faintly blue-green in color due to the Cu²⁺ coordination complex.
Handling & Application
Apply to cleansed, intact skin surfaces only; avoid application to eyes, mucous membranes, or disrupted skin barrier. Patch-test recommended before broad-area application. The serum is intended for topical dermal application; it is not suitable for injection, oral administration, or inhalation. No WADA prohibited substance classification applies to topical GHK-Cu, NAD⁺, or hyaluronic acid under current regulations. Store away from children. Individual skin sensitivity to copper-containing compounds should be considered before large-area application.